a. table of contents · as the market went into 4q15, ... through innovation and organic growth....

Foam Update

November 2015

To Give Than To Receive - 1 -

A. Table of Contents

Contents

A. Table of Content ............................................................................. 1

B. Editorial ........................................................................................... 2

C. News ................................................................................................ 8

D. Patents and Journals ..................................................................... 14

a. New Foaming Technique: .................................................... 14

b. Blowing Agents: .................................................................. 18

c. Foam products: ..................................................................... 19

d. Applications: ........................................................................ 25

e. Degradable and Sustainable Foam: ..................................... 29

f. Thermoset Foam; PU and Others: ........................................ 30

g. Microcellular and Expanded Particle: ................................. 40

Foam Update

November 2015


B. Editorial

Poly-Foam Conference; Shanghai, 2015

As the market went into 4Q15, we all feel tightness in plastics business.

However, gasoline supply continues to be favorable to make raw material price

stable and in reducing freight cost. Moreover, it helps consumer confidence,

which is a huge factor for the spending in the coming holiday season. For foam,

it seems a great opportunity to prove its worth by showing its performance

through innovation and organic growth. It was encouraging in hearing the

Foams 2015 at Kyoto University, Japan, hosted by Society of Plastics

Engineers (SPE) and Japanese Society of Polymer Processing (JSPP) in Sep.

with a record attendance. In addition, Applied Marketing Information (AMI)

organizes a foam conference in Cologne, Germany on Nov. 2-3, which,

according to the already registered list, has over 100 participants. In the

developed areas, plastics foam becomes increasingly important in improving

our life quality and living conditions. In the developing areas, it is also picking

up momentum. Foam Update is to present Poly-Foam Conference at Jing-An

Hilton Hotel Shanghai; Dec. 2-3, 2015, which has, so far, drawn solid support

from global foam industry and institutes.

The purpose of this conference is to combine the in-depth technical endeavors

from institutes with innovative industrial development for sustaining business

progress. Keynote speech will be focused on marketing strategy for foam;

followed by business/technical presentations. It covers Polyolefin for Insulation,

Novel Injection Molding, Microcellular Polyurethane (PU) Foam Technology,

Foam in Social Management, PET Performance Foam, and Foam for Future;

such as: Nanocellular, 3D, and beyond. Synchronized translation to Mandarin

for each presentation will be provided as last year. The preliminary program is

attached in Attachment I. It would be a great platform to build up sensible links

to promote effective innovation and to encourage deeper research efforts to

meet and to exceed current needs without trade-off in environmental status. It is

also worth mentioning that Dr. S. T. Lee volunteered to edit a foam book for

selected presentations in Poly-Foam Conference Shanghai 2014 and other

prominent development works, which is aimed to be published in 2016 by CRC

Press of Taylors and Francis.

Foam Update

November 2015


It is known that progress is oftentimes from competition and cooperation.

Conference like PFC-15 is useful not only in eliminating unnecessary

duplication, but to enhance healthy relations to tackle real issues to allow the

growth momentum flow more smoothly. To give than to receive indeed is a

great catalyst. Synergies in individual success and group progress will be a real

testimony. Attachment II shows the venue and registration information, and

local contact. We all look forward to more blessings.

Editorial Office

Foam Update

November 2015


Attachment I:

Foam Update

November 2015


Foam Update

November 2015


Attachment II:

Foam Update

November 2015


C. News

FIRMS COLLABORATE ON CAR ARM REST, BOTTLE HOLDER

Author(s) Vink, D.

Sources Plastics News

Corporate/Assignee N/A

Publication Date October 21, 2015

Abstract:

Two partners in the network of

lightweight structures (NILS)

had a live demonstration at

Fakuma of a production system

making an insulated bottle

holder in particle foam with a

integrated hinge, two PP screw-

threaded inserts and an exterior

decoration. Hiddenhausen

molder teamed up with a

expanded PP producer which

designed a special foaming

system to fit into the short

injection molding cycle time.

The exterior décor is formed in

the same expanded PP foam

material with a laser textured

surface on the mold.

DART EXPANDS ON ITS EPS RECYCLING OFFER FOR NYC

Author(s) Johnson, J.




Abstract:

Dart Container Corp., embroiled with New

York City’s administration over the idea of

banning certain expanded polystyrene

products, is trying a different tact to jump

start discussions with the mayor.But the

mayor’s office doesn’t think much of the

idea.Dart has valued its PS recycling offer

Foam Update

November 2015


at $23 million, including the purchase of equipment and the guarantee of a market for

polystyrene, both expanded foam products and rigid PS. The company now has added an

educational aspect. Dart will also work with the administration to make sure the public is

aware of it and starts recycling it, and embracing the program.

TREXEL ADDS CHEMICAL FOAMING AGENT TO ITS PRODUCT LINE

Author(s) N/A

Sources Plastics Technology


Publication Date October, 2015

Abstract:

Trexel, Inc., Wilmington,

Mass., a long-time proponent

of supercritical fluid (SCF)

CO2 with its MuCell direct

gas-injection process, has

announced to partner with

Polyfil; Corp., Rockway, N.

J. to add chemical foaming to

its microcellular technology

portfolio. Trexel will offer it

under the TecoCell name for

injection molding and

automotive blow molding

products. This foaming agent

is endothermic in nature, and

can make 7-10% weight

reduction in injection

molding, whereas over 20% reduction is commonly achieved in the MuCell SCF direct

injection process. Easy to operate and low investment in using CFA make this partnership

more business sense.

TREXELNAMES NEW CEO

Author(s) N/A




Abstract:

Trexel Inc. has named a new president and CEO: Brian Bechard, hired away from hot

runner maker Synventive Molding Solutions (SMS). His most recent job title was V.P.

and general Manager at SMS, and he started his position at Trexel on Oct. 12. Before

Foam Update

November 2015


SMS, he held senior manufacturing positions at Avery Dennison.

NEXT GENERATION PACKAGING MARKET: GLOBAL INDUSTRY

ANALYSIS AND OPPORTUNITY ASSESSMENT 2015-2025

Author(s) N/A

Sources Research and Markets



Abstract:

This study offers a 10-year forecast for the global next generation packaging market

between 2015 and 2025. The market is expected to expand at a CAGR of 6.01% during

the projected period. The study demonstrates the market dynamics and trends which are

anticipated to influence the current nature and future status of next generation packaging

market in all the seven regions, over the forecast period.

AIR PRODUCTS INTRODUCES POLYCAT™ 204 CATALYST FOR RIGID

POLYURETHANE FOAMS

Author(s) N/A

Sources PRNewswire



Abstract:

Air Products (NYSE: APD) today introduced the new Polycat™ 204 catalyst to its

product portfolio for use in rigid polyurethane foams. Polycat 204 is a non-emissive

catalyst specifically designed to help polyurethane foam producers maximize their foam

performance and achieve up to six to eight months of system stability when incorporating

"Next Generation" Hydrofluoroolefin (HFO) Blowing Agents, such as Honeywell's

Solstice LBA (HFO-1233zd(E)).

FOAMS – PIPELINE REVIEW, 2015 BY REPORTBAZZAR

Author(s) N/A

Sources www.medgadget.com



Abstract:

The report provides comprehensive information on the pipeline products with

comparative analysis of the products at various stages of development. The report

reviews major players involved in the pipeline product development. It also provides

information about clinical trials in progress, which includes trial phase, trial status, trial

start and end dates, and, the number of trials for the key Foams pipeline products.

Foam Update

November 2015


GLOBAL POLYURETHANES MARKET SEGMENTED BY APPLICATION,

INDUSTRY AND GEOGRAPHY TRENDS AND FORECASTS (2015-2020)

Author(s) N/A

Sources PRNewswire



Abstract:

Global Polyurethanes (PU) market demand is projected to increase from 17million tons to

24 million tons, during 2014-2020. The global market has grown during the past few

years, driven by cost effectiveness and the adaptability of polyurethane foams in major

end-user industry applications. The market is expected to register a healthy growth on

account of the growth in key end-user industries. The Asia-Pacific market is a major

consumer with the highest usage in furniture and construction industries. In the financial

year 2013, U.S. and China shared 37% of the demand. The consumption and revenue

generation was witnessed to be high in the APAC region, followed by the Western

European region.

GLOBAL LIGNIN MARKET SIZE IS EXPECTED TO REACH USD $6.19

BILLION BY 2022 : RADIANT INSIGHTS

Author(s) N/A

Sources Globe Newswire



Abstract:

Global lignin market size is expected to exceed USD 6 billion by 2022, growing at 4.9%

from 2015 to 2022. Rising demand for animal feed and potential as a feedstock substitute

to crude oil are expected to drive lignin market demand over the forecast period.

RIGID POLYURETHANE FOAMS MARKET TO BE THE FASTEST

GROWING PRODUCT SEGMENT MARKET OVER THE FORECAST PERIOD

2012 TO 2020: HEXA RESEARCH INC.

Author(s) N/A

Sources www.digitaljournal.com



Abstract:

Polyurethane occurs in several forms ranging from flexible or rigid foams to strong and

stiff elastomers. Flexible and rigid foams accounted for 60% of the total polyurethane

market in 2013. Rigid polyurethane foams applications are prominently contributed to

refrigeration and construction insulations. Increasing electronic and construction

Foam Update

November 2015


industries across the globe are projected to bolster the rigid polyurethane foams market

growth over the forecast period. Industrialization in India and China is expected to drive

the global market in near future.

CURRENT AND PROJECTED FLEXIBLE COLORED PU FOAMS MARKET

SIZE IN TERMS OF VOLUME AND VALUE 2015-2025 BY FMI ESTIMATE

Author(s) N/A

Sources SBWire



Abstract:

Polyurethane foam is a diverse and large segment of global polyurethane market.

Polyurethanes are said to be a part of our day to day life. Foams play a significant role in

commercial and industrial sector ranging from automotive to refrigeration. Based on the

variants foams available in the market and increasing area of applications for flexible

colored PU foams, the market is expected to experience growth in the near future. Foams

are differentiated as flexible and rigid foams. The properties that rigid foam posses are

hardness, resilience, compression properties, abrasion resistance, whereas flexible

polyurethane foam posses properties such as dry heat resistant, water resistant, oxygen,

ozone resistant and remain flexible at low temperature. Few critical characteristics for the

use of polyurethane foam in the industrial sector are chemical resistant, oil and grease

resistant, flame resistant, noise reduction and fungus, mildew, mould resistant.

GLOBAL METHYLENE DIPHENYL ISOCYANATE (MDI) MARKET 2015-2019

WITH BASF, BAYER, HUNTSMAN, KUMHO MITSUI & YANTAI WANHUA

DOMINATING

Author(s) N/A

Sources PRNewswire



Abstract:

Global MDI Market 2015-2019, has been prepared based on an in-depth market analysis

with inputs from various industry experts. The report includes a comprehensive

discussion on the market, an extensive coverage on various types of production

techniques, applications, and demand-supply dynamics in various geographies. The

report provides comments on both the existing market landscape and its growth prospects

over the forecast period. The report further includes a discussion of the key vendors

operating in this market.

EXPANDED POLYPROPYLENE FOAM MARKET BY TYPE AND BY

Foam Update

November 2015


APPLICATION - GLOBAL FORECAST TO 2019

Author(s) N/A

Sources PRNewswire



Abstract:

EPP foam, a type of polyolefin foams, is used in different applications such as

automotive, packaging, furniture, helmet, sports material, leisure, and construction. EPP

foams are recyclable and lightweight among all the competitive foams in the overall

polymer foam industry. These foams are converted into molded parts (inserts) as per the

requirement of end-use applications. These foams are available in low density, high

density, and Prous PP foam grades.

FOAMED PLASTICS WITH ENCAPSULATED INSECTICIDES

Author(s) N/A

Sources Plastics News Europe July-Aug. 2015, p.25


Publication Date N/A

Abstract:

Spain-based plastics research organisation, Aimplas and the Spanish Inesfly Corporation

have collaborated with the Uni- versity of Zaragoza to create foamed plastics that can en-

capsulate insecticides. The innovative material will allow the manufacture of soles of

sandals and mats that repel insects that transmit diseases such as ma- laria, dengue fever,

Chagas dis- ease and leishmaniasis.

Foam Update

November 2015


D. Patents and Journals

a. New Foaming Technique

POROUS LAMINATE

Inventor(s) Matsui, R., Ikoma, K., Okura, M., Fujimoto, S.

Sources JP 2015163465

Corporate/Assignee Toray Industries, Inc.

Publication Date September 10, 2015

Abstract:

The present invention relates to provide a sterile moisture permeability and appearance

superior even after treated and maintains a porous laminate yet excellent in barrier

property, such as blood barrier and viral barrier properties. The invention relates to a

porous laminate comprising a polyolefin porous film and a polyolefin fibrous layer, is

moisture permeability after heat treatment for 30 minutes at 121 ℃ is 150g / m2 · h or

more, 30 at 121 ℃ minute heat shrinkage to the longitudinal direction and 5% or less in

the width direction of both the porous laminate.

DEVELOPMENT OF POLYLACTIDE BEAD FOAMS WITH DOUBLE

CRYSTAL MELTING PEAKS

Author(s) Nofar, M., Ameli, A., Park, C. B.

Sources Polymer 69, No.1, 2015, p.83-94


Publication Date May 30, 2015

Abstract:

In this study, we report the development of

polylactide (PLA) bead foams with a double

crystal melting peak structure. PLA bead foams

with 3- to 30-fold expansion ratios and average

cell sizes ranged from 350 nm to 15 μm were

prepared. We found that the PLA's foam structure

was significantly affected by the amount of

perfected crystals (that is, crystals with a high

melting temperature) generated during CO2

saturation. The structure was also affected by

crystals with a low melting temperature that

formed during foaming and cooling. Various CO2 pressures further influenced the

crystallization kinetics of the crystals with a high melting temperature during the

saturation. At various pressures, different crystallization kinetics also significantly

affected the PLA foam's cell morphology and its uniformity. At a high saturation

pressure, the increased content of dissolved CO2 in the PLA promoted the cell nucleation

Foam Update

November 2015


rate through the increased degree of thermodynamic instability. On the other hand, at

high pressures, small-sized perfect crystals were induced as high-melting peak crystals.

Thus, the heterogeneous cell nucleation around these crystals was further improved,

which also caused the generation of a more uniform foam structure. Moreover, this study

introduces this bead foam technology as an innovative new way to produce nanocellular

foam products.

VISCOSITY CONTRAST EFFECTS ON THE STRUCTURE – PROPERTY

RELATIONSHIP OF MULTILAYER SOFT FILM/FOAMS

Author(s) Rahman, Md. A., Andrade, R., Maia, J., Baer, E.




Abstract:

In this research work, multilayer soft

film/foam systems based on low-

density polyethylene (LDPE) have been

developed. In order to improve the

layer stability during processing, a

viscosity contrast between film and

foam layer polymers is maintained.

Three different LDPE grades having

different melt flow indices were used

and film/foam systems with up to 32

layers were produced. High-viscosity

film layer and low-viscosity foam layer in each film/foam system contributed to good

layer integrity even with high foam content. Measurements of cell density and cell size

distribution indicated that high viscosity film layer and increasing layer number have

significant confinement effect that enhanced the cell nucleation and suppressed the cell

coalescence and thus contributed to single cell arrays in foam layers. Constrained cell

growth was observed in 16 and 32 layers film/foam systems. Confinement effect from the

high viscosity film layer was also observed at higher foam content. In addition, uniform

layer integrity resulted from high viscosity contrast between film and foam layers

contributed to higher deformability. Moreover, increasing layer number also improved

the tensile modulus and strength of each film/foam system.

THE EFFECT OF STRAIN-HARDENING ON THE MORPHOLOGY AND

MECHANICAL AND DIELECTRIC PROPERTIES OF MULTI-LAYERED PP

FOAM/PP FILM

Author(s) Lee, S., Zhu, L., Maia, J.



Foam Update

November 2015


Publication Date June 18, 2015

Abstract:

Polypropylene (PP) foams are

important in various industrial

applications due to their unique

mechanical and electrical properties.

However, fabrication of microcellular

PP foams is still limited because of

polymer's rheological properties. In

this work, the influence of

rheological properties and the layer

confinement effect on the

microcellular morphology of

foam/film structure and the mechanical and dielectric properties were investigated. Two

types of long chain branched polypropylenes (BPPs) were used and named as BPP1 and

BPP2, respectively. Talc micro-particles were used as a nucleating agent for

crystallization. In uniaxial extensional flow, both BPPs exhibited strong strain-hardening

behavior with the Trouton ratios well above 3 at all extensional rates, regardless of the

talc content; however, BPP2 exhibited more strain-hardening than BPP1. 16 and 32

layered foam/film structures were then fabricated with BPP2 and 32 layered foam/film

was fabricated with BPP1. The lower strain-hardening of BPP1 caused cell collapse and

showed very little evidence of film layers separating the foam layers, while the stronger

strain-hardening of BPP2 resulted in stable cell layers near the surface of the sheet and a

non-coalesced cell structure. Mechanical properties in compression showed large

differences in compressive strain due to the difference in cell structures. Dielectric

property measurement on biaxially oriented 32-layer BPP2 foam/film, the one that

showed the best cell structure and mechanical properties, showed much higher apparent

dielectric constant (6–7) and higher release and stored energy densities than those of neat

biaxially oriented polypropylene films.

HIGH MELT STRENGTH POLYPROPYLENE BY IONIC MODIFICATION:

PREPARATION, RHEOLOGICAL PROPERTIES AND FOAMING

BEHAVIORS

Author(s) Li, Y., Yao, Z., Chen, Z., Qiu, S., Zeng, C., Cao, K.




Abstract:

In this paper we report a facile process to introduce ionic interactions to polypropylene

(PP) based on Zn-neutralization and amine modification reactions of maleic anhydride

grafted PP (PP-g-MAH) for the preparation of high melt strength PP (HMSPP). A series

of PP ionomers with different structures and ionic properties were synthesized via the

choice of the pendant groups, and their effects on the rheological properties were

Foam Update

November 2015


investigated. Increased

melt viscosity and

elasticity resulting from

the ionic interaction

and aggregation of the

ionic domains were

confirmed by both

shear and extensional

rheological

measurements. The

rheological behaviors

of the PP ionomers share features similar to those of critical gels. Moreover, foaming

behaviors of the PP ionomers were investigated by using CO2 as the foaming agent and

compared to that of the original PP-g-MAH. All ionomers show significantly improved

foamability. Of the group of PP ionomers, the amine-modified PP ionomers (Zn-AM-

ionomer) shows the best foamability due to the combined effects of optimal rheological

properties and the underlying favorable interactions with CO2. These findings provide

new insights into the design of high melt strength polypropylenes for foaming application

assisted with CO2.

FOAMCORE BLOW-MOLDED STRUCTURAL COMPONENTS FOR

TRANSPORTATION APPLICATIONS

Author(s) Sopher, S. R.

Sources Plastics Engineering, Oct. 2015, p.50-58



Abstract:

With emphasis on weight reduction throughout the transportation industry, there is a

renewed effort to remove as much mass as possible to improve vehicle performance. JSP

has developed and optimized a blow-molding process that combines traditional blow

molding with an injection-molded particle foam core. This process, called Foamcore,

utilizes traditional blow-molding equipment combined with a particle foam injection unit

to produce a composite blow-molded part with a solid foam core. JSP’s Foamcore

technology allows for simpler designs, higher strength-to-weight ratios, and lower part

weights, all while using existing tooling (with minor modifications). Multiple polymers

can also be used, including polypropylene (PP), polyethylene (PE), polystyrene (PS), and

others, for both skin and core materials. This paper will describe recent advancements of

this technology, and how they allow for improved mechanical properties to be realized in

the area of transportation applications for structural and semi-structural components.

Other features discussed include improvements in thermal insulation and sound

abatement, as well as recyclability and end-of-life requirements.

Foam Update

November 2015


b. Blowing Agents

POLYMER FOAMING WITH CHEMICAL BLOWING AGENTS:

EXPERIMENT AND MODELING

Author(s) Ruiz, J. A. R., Vincent, M., Agassant, J., Sadik, T., Pillon, C., Carrot, C.

Sources Polymer Engineering and Science 55, No.9, 2015, p.2018-2029


Publication Date November 28, 2014

Abstract:

An experimental and theoretical analysis of the polypropylene foaming process using

three different chemical blowing agents (CBA) was performed. A simple experiment was

designed to analyze the foaming process of polypropylene (PP)/CO2 system under two

different pressure conditions. The expansion ratio and final foam structure was measured

both by direct observation and from optical measurements and image analysis, showing a

good agreement. A single bubble simulation based on relevant differential scanning

calorimetry and thermo-gravimetrical analysis experiments, assuming each CBA particles

as a nucleation site and accounting for gas diffusion in the surrounding polymer matrix

has been built. The sensitivity of the model to physical and processing parameters has

been tested. The calculation results are compared to the experiments and open the route

to a simplified method for evaluating the efficiency of CBA.

CURRENT APPLICATIONS OF FOAMS FORMED FROM MIXED

SURFACTANT–POLYMER SOLUTIONS

Author(s) Bureiko, A., Trybala, A., Kovalchuk, N., Starov, V.

Sources Advances in Colloid and Interface Science 222, No.1, 2015, p.670-677



Abstract:

Foams cannot be generated without the

use of special foaming agents, as pure

liquids do not foam. The most common

foaming agents are surfactants, however

often for foam stability one active agent

is not enough, it is necessary to add other

component to increase foam lifetime.

Foams on everyday use are mostly made

from mixture of different components.

Properly chosen combinations of two

active ingredients lead to a faster foam

formation and increased foam stability.

During the last decade polymers (mainly polyelectrolytes and proteins) have become

frequently used additives to foaming solutions. Mixtures of surfactants and polymers

Foam Update

November 2015


often demonstrate different foaming properties in comparison to surfactant only or

polymer only solutions. The nature of surfactant–polymer interactions is complicated and

prediction of resulting foaming properties of such formulations is not straightforward.

Properties and foaming of surfactant–polymer mixtures are discussed as well as current

applications of foams and foaming agents as foams are widely used in cosmetics,

pharmaceutics, medicine and the food industry.

EXTRUSION OF CELLULAR SILICONE RUBBER PROFILES USING

PHYSICAL BLOWING AGENTS

Author(s) N/A

Sources Rubber Fibres Plastics International 10, No.3, Aug. 2015, p.175-179


Publication Date August, 2015

Abstract:

At present, cellular silicone rubber profiles are mostly foamed using chemical blowing

agents. At the Institute of Plastics Processing (IKV) a process technology has been

developed to load even silicone rubber with physical blowing agents during the extrusion

process using a pressure-speed-controlled gear pump unit. Despite the high gas

permeability of silicone rubbers it is possible – due to sufficient high process pressures –

to load the silicone rubber melt with nitrogen as well as carbon dioxide. Apart from

preventing decomposition products, an advantage of this process is the option to optimize

the cellular structure of the extruded profile during the running process, e. g. by adjusting

the amount of blowing agent.

c. Foam Products

METHOD FOR PRODUCING A MULTI-LAYER PLASTIC FILM

Inventor(s) Buehring, J. Malner, T., Mani, J., Huelsewede, V.

Sources US Pat.: 9,156,228

Corporate/Assignee Benecke Kaliko AG (Hannover, DE)


Abstract:

A method for producing a multi-layer plastic film comprising at least one compact cover

layer and at least one layer which is arranged under the cover layer and made of extruded

foamed plastic (foam layer), wherein the compact cover layer is connected to the foam

layer thermally or by adhesion after extrusion and cooling of the foam layer to below the

melting temperature. The layer made of foamed plastic is generated by blowing a

propellent which is under positive pressure into a plastic melt during the extrusion process

and by subsequently relaxing the propellent which is under positive pressure, wherein the

foamed plastic is at first not cross-linked and is cross-linked together with the compact

cover layer, in particular by high-energy radiation, only after the foam layer and the

Foam Update

November 2015


compact cover layer have been connected.

DEFORMABLE, RIGID POLYSTYRENE FOAM BOARD

Inventor(s) Polasky, M. E., Breindel, R. M., Loh, R. R., Delaviz, Y., Patel, B.


Corporate/Assignee Owens Corning Intellectual Capital, LLC (Toledo, OH)


Abstract:

Provided are methods for producing a high strength, but easily deformed, polystyrene

foam board that can endure repeated deformations from its original configuration into

more complex curved shapes without damaging the board integrity or substantially

reducing its structural strength. Also provided are rigid polystyrene foam boards produced

by this method that exhibit improved bending and impact resistance while substantially

retaining or improving other properties, for example, the thermal dimensional stability and

fire resistance, exhibited by corresponding conventional XPS foam boards. The foamable

compositions may incorporate one or more of a variety of polymer processing aids for the

purpose of altering the performance of the final foam products, thereby allowing the

properties of the final foam product to be customized to some degree.

ARTICLES THAT INCLUDE A POLYMER FOAM AND METHOD FOR

PREPARING SAME

Inventor(s) Gehlsen, M. D., Momchilovich, B. S.

Sources US Pat.: RE45,747

Corporate/Assignee 3M Innovative Properties Company (St. Paul, MN)


Abstract:

Polymer foam articles prepared by melt-mixing a

polymer composition and a plurality of microspheres,

at least one of which is an expandable polymeric

microsphere, under process conditions, including

temperature and shear rate, selected to form an

expandable extrudable composition; and extruding the

composition through a die.

ARTICLES COMPRISING BROAD MOLECULAR WEIGHT DISTRIBUTION

POLYPROPYLENE RESINS

Foam Update

November 2015


Inventor(s) Abubakar, S. M., Poloso, A., Meka, P.

Sources US Pat.App.: 20150291755



Abstract:

Disclosed herein are molded articles, foamed articles, and foamable resins comprising a

polypropylene resin comprising at least 50 mol % propylene, an MWD (Mw/Mn) of

greater than 5, a branching index (g') of at least 0.95, and a melt strength of at least 20 cN

determined using an extensional rheometer at 190.degree. C. Methods of making a molded

article and making a foamed article are also disclosed.

METHOD FOR THE PRODUCTION OF A HIGH-MOLECULAR POLYESTER

OR COPOLYESTER AND ALSO OF A POLYMER BLEND COMPRISING

THESE

Inventor(s) Hess, C., Hagen, R.


Corporate/Assignee UHDE INVENTA-FISCHER GMBH


Abstract:

The invention relates to a method for the production of a high-molecular polyester or

copolyester which comprises at least three method steps. In a first method step, a paste is

produced from at least one aromatic dicarboxylic acid or the diester thereof or the acid

anhydride thereof and also from at least one aliphatic dicarboxylic acid or the diester

thereof or acid anhydride thereof and also from at least one dialcohol and also the required

quantity of transesterification- or polycondensation catalyst. This paste is converted into a

prepolymer in a second step at increased temperature and, in the third method step, this

obtained prepolymer is polycondensed or copolycondensed at reduced pressure relative to

normal conditions. The implementation of the method can be effected continuously and

also discontinuously. Furthermore, the invention relates to polyesters and copolyesters

produced in this way and also to biodegradable polymer blends comprising these. The

polyesters and copolyesters according to the invention are used for the production of

compostible moulded articles, biodegradable foams and paper-coating means.

METHOD AND DEVICE FOR MANUFACTURING RESIN LAMINATE

Inventor(s) Tsumura, K., Hatada, R., Wada, A., Inui, N., Takahashi, K.


Corporate/Assignee Sekisui Chemical Co., Ltd.


Abstract:

There is provided a method for efficiently and inexpensively providing a resin laminate

having a foamed resin layer without using a bonding agent. The method for manufacturing

Foam Update

November 2015


a resin laminate includes the steps of:

supplying a molten foamable resin

composition 11 in a non-foamed state to a

first manifold 4 of a multi-manifold mold 1;

supplying a second resin composition 12

for forming a non-foamed resin layer to a

second manifold 5; in the multi-manifold

mold 1, extruding the foamable resin

composition 11 from the first manifold 4 to

a merging and laminating part 3 and

releasing pressure to thereby cause foaming

to form a foamed resin layer 11A; and,

before solidification of the foamed resin

layer 11, extruding a non-foamed resin

layer 12A extruded from the second

manifold 5 and laminating the non-foamed

resin layer 12A to the foamed resin layer

11A.

MULTILAYER FOAM SHEET AND INTERLEAF FOR GLASS PLATES

Inventor(s) Takeshi, A., Takashi, N., Mikidai, F., Ryohei, T.

Sources WO 2015133354



Abstract:

A multilayer foam sheet which is composed of: a

foam layer that is configured of a polyethylene

resin (A); and antistatic layers that are

respectively laminated on and bonded to both

surfaces of the foam layer by co-extrusion. This

multilayer foam sheet has an apparent density of

30-300 kg/m3 and a thickness of 0.05-2 mm.

The antistatic layers contain a polyethylene resin

(B), a polystyrene resin, a styrene elastomer and

a polymer type antistatic agent, and has a basis

weight of 1-10 g/m2. The polystyrene resin is

contained in an amount of 15-70% by weight in

the antistatic layers.

Foam Update

November 2015


METHOD OF MANUFACTURING THE FOAM LAMINATE FOR, AND,

FOAMING PROCESSED PAPER AND INSULATED CONTAINER USING A

FOAM LAMINATE FOR

Inventor(s) Sasaki, K.


Corporate/Assignee Japan Polyethylene Corporation


Abstract:

Moldability is good at the time of lamination, and it is possible to provide sufficient height

and good foam cell appearance (foamed layer) may productive than conventional foam

laminate which is obtained by heating. A method for producing a foam laminate for

forming the polyethylene resin layer to be foamed on at least one surface of a substrate

mainly composed of bite (I), a polyethylene resin layer (I) satisfies a specific MFR a high-

pressure radical process low-density polyethylene resin (A) 50~98 wt%, a high-pressure

radical process low-density polyethylene resin (B) satisfies the specific MFR polyethylene

resin composition obtained by mixing a 2-50% by weight (consists of C), extrusion

lamination molding speed is processed at 50m / min or more of the conditions.

ASSISTED HETEROGENEOUS MULTINUCLEATION AND BUBBLE

GROWTH IN SEMICRYSTALLINE ETHYLENE-VINYL ACETATE

COPOLYMER/EXPANDED GRAPHITE NANOCOMPOSITE FOAMS:

CONTROL OF MORPHOLOGY AND VISCOELASTIC PROPERTIES

Author(s) Yousefzade, O., Hemmati, F., Garmabi, H., Mahdavi, M.

Sources Express Polymer Letters 9, No.10, 2015, p.932-944



Abstract:

Nanocomposite foams of ethylene-vinyl acetate copolymer (EVA) reinforced by

expanded graphite (EG) were prepared using supercritical nitrogen in batch foaming

process. Effects of EG particle size, crosslinking of EVA chains and foaming temperature

on the cell morphology and foam viscoelastic properties were investigated. EG sheet

surface interestingly provide multiple heterogeneous nucleation sites for bubbles. This

role is considerably intensified by incorporating lower loadings of EG with higher aspect

ratio. The amorphous and non-crosslinked domains of EVA matrix constitute denser

bubble areas. Higher void fraction and more uniform cell structure is achieved for non-

crosslinked EVA/EG nanocomposites foamed at higher temperatures. With regard to the

structural variation, the void fraction of foam samples decreases with increasing the EG

content. Storage and loss moduli were analyzed to study the viscoelastic properties of

nanocomposite foams. Surprisingly, the foaming process of EVA results in a drastic

reduction in loss and storage moduli regardless of whether the thermoplastic matrix

contains EG nanofiller or not. For the EVA/EG foams with the same composition, the

nanocomposite having higher void fraction shows relatively lower loss modulus and

Foam Update

November 2015


more restricted molecular movements. The study findings have verified that the dynamics

of polymer chains varies after foaming EVA matrix in the presence of EG.

THERMAL PROPERTIES, RHEOLOGY AND FOAMS OF POLYSTYRENE-

BLOCK-POLY(4-VINYLPYRIDINE) DIBLOCK COPOLYMERS

Author(s) Schulze, M., Handge, U. A., Rangou, S., Lillepärg, J., Abetz, V.




Abstract:

In this study, the thermal and rheological properties of polystyrene-block-poly(4-

vinylpyridine) (PS-b-P4VP) diblock copolymers are investigated in order to get

information about the optimum foaming temperature. Foams of these diblock copolymers

were prepared using the technique of batch foaming with carbon dioxide as

environmentally-benign blowing agent. The tailored PS-b-P4VP diblock copolymers with

different molecular weights and a cylindrical morphology were prepared and analysed

regarding their thermal stability. High-pressure differential scanning calorimetry exposes

the plasticising effect of the blowing agent which yields a decrease of the glass transition

temperature of the polystyrene and the poly(4-vinylpyridine) blocks. Sorption

measurements were performed in order to measure the uptake of carbon dioxide in the

diblock copolymer. Additionally, rheological experiments in the oscillatory mode were

conducted which confirmed a microphase-separated structure of the PS-b-P4VP diblock

copolymers by a plateau of the storage and loss moduli in the temperature range of

processing. In shear and melt elongation, the transient shear viscosity and the transient

elongational viscosity were much smaller than the linear viscoelastic prediction at later

times. The analysis of the foam morphology revealed that the foam density of the diblock

copolymers as measured via Archimedes' principle exhibits the lowest foam density at a

molecular weight in the order of 160 kg mol−1.

Foam Update

November 2015


d. Applications

SEALING DISC FOR INDUCTION SEALING OF A CONTAINER

Inventor(s) Ban, N., Rothweiler, P., Rohrka, H., Kroger, R.


Corporate/Assignee Alfelder Kunststoffwerke Herm. Meyer GmbH (Alfeld/Leine, DE)


Abstract:

A sealing disc for closing mouths of containers has a

foil for inductively introducing heat into the sealing

disc. The sealing disc has an edge region. A sealing

layer is provided on the side of the foil that is to face

the interior of the container, for sealing tight the edge

region of the sealing disc on the mouth of the

container. One or more layers are located on the side

of the foil that is remote from the sealing layer.

Further, a hand grip is formed as part of the sealing

disc and serves to open the mouth of the container that is closed by the sealing disc. On

the side that is remote from the sealing layer, the layer or layers are provided with

weakening lines for forming an outline of the hand grip. The weakening lines lead into the

edge region of the sealing disc.

BLANK FOR CONTAINER

Inventor(s) Euler, J. B., Paladino, J. J., Leser, C. K.


Corporate/Assignee Berry Plastics Corporation (Evansville, IN)


Abstract:

A blank made of a polymeric material is provided and

used to form the body of a drink cup or other container.

A floor can be coupled to the body to define an interior

region of the cup.

MINI PUMP WITH COMPRESSIBLE AIR INLET CHAMBER FOR PROVIDING

Foam Update

November 2015


RESIDUAL SUCK-BACK

Inventor(s) Harris, D. R.


Corporate/Assignee GOJO Industries, Inc.


Abstract:

Exemplary dispensers, pumps and refill units are

disclosed herein. An exemplary refill unit

includes a container and a foam pump. The foam

pump includes a liquid pump chamber, a

compressible air inlet chamber and a compressed

air inlet. The volume of the compressible air

inlet chamber is less than the volume of air used

to make a dose of foam. A one-way air inlet

valve is located proximate the compressed air

inlet. A piston is included that is movable within

the liquid pump chamber and has a liquid seal

member and an air seal member. The liquid

pump chamber includes a liquid outlet into a

center portion of the piston. One or more

openings extend through the piston wall and

provide a passage from the compressible air

chamber to the center portion of the piston. The pump further includes mix media and an

outlet.

HIGH TEMPERATURE NON-CROSSLINKED POLYETHYLENE-BASED FOAM

AND METHODS OF MAKING THE SAME

Inventor(s) Kundu, D.


Corporate/Assignee Hickory Springs Manufacturing Company


Abstract:

A linear low density polyethylene (LLDPE) foam and methods of making the same are

described. The LLDPE foam has a maximum operating temperature of about 220°F. The

LLDPE foam can also have a density in the range of from 0.6 to 10.0 lbs/ft3. The LLDPE

foam can be manufactured in part by processing an LLDPE resin in order to create a long

branch molecular structure in the LLDPE resin without crosslinking or otherwise

adversely affecting the thermoplastic properties of the LLDPE resin.

COMPOSITE FOAM AND METHODS OF PREPARATION AND USE

Inventor(s) Sjong, A.

Foam Update

November 2015



Corporate/Assignee Empire Technology Development Llc


Abstract:

Composite foams having cells

containing shape-stabilized phase

change material (ss-PCM) particles

are described. Composite foams may

be made by contacting a plurality of

ss-PCM particles and one or more

pre-polymer reactants, wherein each

ss-PCM particle can form a

nucleation site for foam cell generation. The composite foams may be used in regulating

the temperature of an article wherein the foam undergoes a phase transition as the

surrounding temperature of the article approaches the foam's phase transition temperature.

The thermostatic material may exchange heat with the article during the phase transition,

resulting in regulation of the temperature of the article. The composite foams may be used

as a thermostatic packaging material having a cavity for storing goods.

THE PACKAGING BAG

Inventor(s) Fukuda, A.


Corporate/Assignee Toppan Printing Co., Ltd.


Abstract:

[Problems] An object to be solved of the present invention

is to propose a packaging bag in a packing bag having a

sealant layer comprising a foam layer, can exhibit stably a

desired sealing strength.

A substrate layer (4) and two sheets of laminate having a

sealant layer (5) is opposed to the sealant layer between

the (2,3), the peripheral edge of the packaging bag formed

by heat-sealed (1) met Te, the sealant layer of one

laminate (3) comprises a foam layer (6), the sealant layer

of the other laminate (2) is a packaging bag which is

characterized in that it contains no foam layer.

TRANSPORT CONTAINER FOR TRANSPORTING SENSITIVE GOODS, HAS

TROUGH-SHAPED UPPER PART WHICH IS PROVIDED TO CLOSE OPEN

UPPER SIDE OF LOWER PART AND IS ARRANGED ON LOWER PART,

WHERE UPPER PART IS REMOVABLE OR IS PIVOTED TO OPEN LOWER

Foam Update

November 2015


PART

Inventor(s) Bock, T., Eschenbach, F., Heinemann, M., Kuhn, J., Taraschewski, T.

Sources DE 102014006579 A1

Corporate/Assignee VA-Q-TEC AG (VAQT-N)


Abstract:

NOVELTY: The transport container has a trough-shaped upper part (2) which is provided

to close an open upper side of a lower part (1) and is arranged on the lower part, where the

upper part is removable or is pivoted to open the lower part. The lower part and the upper

part are made from dimensionally stable plastic material, particularly expanded

polypropylene. The lower part has a base (3), longitudinal walls (4) and transverse wall

(5). The upper part has a cover (6), longitudinal sides (7) and transverse sides (8).

USE: Transport container for transporting sensitive goods, such as blood products,

medications, or laboratory samples.

ADVANTAGE: The transport container has a trough-shaped upper part which is provided

to close an open upper side of a lower part and is arranged on the lower part, where the

upper part is removable or is pivoted to open the lower part, and thus ensures simple

structure of the transport container.

DESCRIPTION OF DRAWINGS

The drawing shows a perspective view of a

transport container.

1 Lower part

2 Upper part

3 Base

4 Longitudinal walls

5 Transverse wall

6 Cover

7 Longitudinal sides

8 Transverse sides

ONE KIND OF COLD CHAIN TRANSPORT CRATES

Inventor(s) Huang, S., Zhenguo, Y.

Sources CN 204507713

Corporate/Assignee Dong Ying (Jiangsu) Pharmaceutical Co., Ltd.

Publication Date July 29, 2015

Abstract:

The utility model discloses a cold chain shipping container, comprises an inner box and an

outer box, inner box of the box and cover connected by dual-slot card, the four corners of

the cabinets with a collision member, the inner box is made of can be made of polystyrene

Foam Update

November 2015


foam, carton box height is less than the inner box box,

outer box cover for the hat without envelope jack that

is used, the edge of an opening, can be folded,

simplifying the steps, easy to operate .

e. Degradable and Sustainable Foam

ARTICLE COMPRISING POLYLACTIC ACID LAYERS AND PROCESS OF

MAKING THE SAME

Inventor(s) Chivrac, F., Jacob, A., Wegner, J., Groeseling, M.




Abstract:

The invention concerns an article comprising layers

of polylactic acid and a process of making the

same. A layer is of foamed polylactic acid. A layer

preferably comprises an impact modifier. The

article can be used in the field of packaging.

BIODEGRADABLE CROSSLINKED POLYMERS

Inventor(s) Foley, P., Jin, X., Sonnenschein, M. F., Wagner, N. L., Yue, C.


Corporate/Assignee Dow Global Technologies Llc


Abstract:

A biodegradable crosslinked polymer which is a reaction product of a polymer having

aldehyde-reactive functional groups and a polyaldehyde, wherein the polymer having

aldehydereactive functional groups comprises a biodegradable structure or the

polyaldehyde comprises a biodegradable structure.

Foam Update

November 2015


TERTIARY RECYCLING OF WASTE POLYSTYRENE USING MAGNESIUM

IMPREGNATED CATALYSTS INTO VALUABLE PRODUCTS

Author(s) Shah, J., Jan, M. R., Adnan

Sources Journal of Analytical and Applied Pyrolysis 114, No.1, 2015, p.163-171



Abstract:

Magnesium impregnated catalysts were synthesized and used for tertiary recycling of

waste expanded polystyrene. The degradation reactions were carried out in a Pyrex glass

reactor in batch mode and the influence of magnesium impregnated catalysts on

degradation of WEPS was studied. Different parameters like degradation temperature,

reaction time and polymer to catalysts ration were optimized. The results from

degradation experiments were compared at their respective optimum conditions. The

yield of liquid product was 95.47 ± 0.12 wt.% maximum with 15% Mg–Al2O3 catalyst

and also found with higher selectivity than Mg, 20% Mg–Mmn and 20% Mg–AC

catalysts. The yield of benzene, toluene, ethylbenzene, styrene and α-methylstyrene was

maximum using 15% Mg–Al2O3 catalyst. Whereas the yield of product was in a narrow

range using 15% Mg–Al2O3 catalysts. The mechanism of formation of different products

was also explained.

f. Thermoset Foam; PU and Others

PRODUCTION OF POLYURETHANE FOAMS FOR WOUND MANAGEMENT

Inventor(s) Mager, M., Ludewig, M., Matner, M., Dietze, M., Fugmann, B.


Corporate/Assignee Bayer MaterialScience AG (DE)


Abstract:

The present invention provides novel polyurethane-based wound dressing foams, obtained

by foaming and curing silane-terminated polyurethanes.

METHOD FOR PRODUCING HYDROPHILIC, ALIPHATIC POLYURETHANE

FOAMS HAVING A LOW BULK DENSITY

Inventor(s) Niesten, M., Dorr, S.


Corporate/Assignee Bayer Intellectual Property GmbH (Monheim, DE)


Abstract:

The invention relates to a method for producing hydrophilic, aliphatic polyurethane foams

having a low bulk density. The invention also relates to a hydrophilic, aliphatic

Foam Update

November 2015


polyurethane foam which can be obtained according to said method and to the use thereof

as a wound dressing, incontinence product or as a cosmetic article.

POLYBUTADIENE MODIFIED POLYMER POLYOLS, FOAMS PREPARED

FROM POLYBUTADIENE MODIFIED POLYMER POLYOLS, AND

PROCESSES FOR THE PRODUCTION THEREOF

Inventor(s) Adkins, R. L., Neal, B. L., Krisher, D. P.


Corporate/Assignee Bayer MaterialScience LLC (Pittsburgh, PA)


Abstract:

This invention relates to polybutadiene modified polymer polyols which comprise one or

more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated

monomers, and polybutadiene, in the presence of at least one free radical polymerization

catalyst, and optionally, one or more chain transfer agents. The polybutadiene present in

these polybutadiene modified polymer polyols may be carried into the polymer polyol

through the preformed stabilizer, by a polybutadiene containing component that is added

separately from the preformed stabilizer to the polymer polyol, or a combination thereof,

with the total amount of polybutadiene ranging from 0.03 to 1.0% by weight of

polybutadiene, based on 100% by weight of the polymer polyol. The present invention

also relates to processes for preparing these polybutadiene modified polymer polyols, to

foams prepared from these polybutadiene modified polymer polyols, and to processes for

producing foams from these polybutadiene modified polymer polyols.

HIGH RESILIENCE POLYURETHANE FOAMS COMPRISING CASTOR OIL

Inventor(s) Meyer, A., Lutter, H., Leseberg, C., Johann-Krone, A.


Corporate/Assignee BASF SE (Ludwigshafen, DE)


Abstract:

A process for producing high resilience flexible polyurethane foams. The process includes

forming a mixture of (a) isocyanate prepolymer, (b) polymeric compounds having

isocyanate-reactive groups, (c) castor oil, (d) optionally chain-extending and/or

crosslinking agents, (e) catalysts, (f) blowing agents, and optionally (g) additives, and

reacting the mixture to form the flexible polyurethane foam. More than 5 wt % of (c) is

used, based on the total weight of components (b) to (g), and (a) is obtained by mixing

diphenylmethane diisocyanate (a1) and polyol 1 (a2) and also optionally further polyols,

chain extenders and/or crosslinkers, where (a2) includes a polyalkylene oxide polyol

having a hydroxyl number of 30 to 60, an average functionality of 2.3 to 3.2 and a

propylene oxide fraction, based on the alkylene oxide content, of 70 to 100 wt %. A

polyurethane foam obtained by the process, and the use of such a foam as an auto seat.

Foam Update

November 2015


POLYURETHANE FOAM COMPOSITION

Inventor(s) Braun, R. G., Garcia, J. M., Schutter, D. A.


Corporate/Assignee Dow Global Technologies LLC (Midland, MI)


Abstract:

Single component compositions for making a moisture-cured polyurethane foam are

disclosed. Foam produced from the compositions of the present invention produce very

low foaming pressure due to their 60-95 percent open-cell content. After these

compositions are applied and cure, they form a permanent seal around the perimeter of

installed fenestration products.

RESIN PREMIX COMPOSITION, RIGID POLYURETHANE FOAMING

COMPOSITION AND RIGID POLYURETHANE FOAM

Inventor(s) Miyata, A., Sato, K., Matsumoto, S.


Corporate/Assignee Mitsui Chemicals, Inc.


Abstract:

An object of the invention is to provide resin premix compositions which include a polyol

and a hydrocarbon foaming agent while still exhibiting good storage stability, the polyol

being obtained without the use of ring-opening polymerization reaction of a cyclic ether.

The resin premix composition of the invention includes at least a polyol and a

hydrocarbon foaming agent, the polyol including a polyether ester polyol (A) obtained by

reacting a polyether polyol with a fatty acid and/or a fatty acid ester, the polyether polyol

being obtained by condensing a polyhydric alcohol including 50 mol % or more of a

trihydric or higher alcohol.

METHOD FOR PRODUCING SOFT POLYURETHANE FOAM BASED ON

POLYESTER POLYOLS

Inventor(s) Nefzger, H., Klesczewski, B., Meyer-ahrens, S., Knaup, H.


Corporate/Assignee Bayer Materialscience AG


Abstract:

The present invention relates to a process for the production of flexible polyurethane

foams, wherein there is used as starting material a polyester polyol component which is

composed of at least two dicarboxylic acids.

Foam Update

November 2015


THERMOFORMABLE MELAMINE RESIN FOAM WITH PARTICULATE

FILLER MATERIAL

Inventor(s) Steinke, T. H., Baumgartl, H., Lenz, W., Hahn, K.


Corporate/Assignee BASF SE


Abstract:

The present invention relates to a thermoformable melamine-formaldehyde foam

comprising from 0.1 to 50 wt % of at least one particulate filling material, wherein the

wt % are based on the total weight of filling material plus melamine-formaldehyde

precondensate used for foam production, wherein the at least one particulate filling

material has a melting point no higher than 220.degree. C. and an average particle

diameter in the range from 5 .mu.m to 750 .mu.m, to a process for producing the

thermoformable melamine-formaldehyde foam and also to the use of the melamine-

formaldehyde foam for acoustical or thermal insulation in building construction, in

automobile, ship and track vehicle construction, the construction of spacecraft, in the

upholstery industry or for insulating pipework lines.

USE OF POLYUREA NANOPARTICLES AS PERFORMANCE MODIFIERS IN

POLYURETHANE MATERIALS

Inventor(s) Woutters, S. A., Lindsay, C. I.


Corporate/Assignee Huntsman International LLC


Abstract:

Nano-sized polyurea particles or a dispersion of polyurea particles suitable for improving

the mechanical properties of a polyurethane material, said particles having at least

equivalent diameter dimensions in the nanosize range of 50 nm up to 700 nm, a uniform

equivalent diameter particle size distribution, an amount of urethane bonds calculated on

the total amount of urea+urethane bonds in said particles of <1%, and a glass transition

temperature (Tg) of >100.degree. C., preferably Tg >120.degree. C., more

preferably >150.degree. C. measured in a second heating cycle after heating

to >220.degree. C. at 20.degree. per minute using Differential Scanning calorimetry.

PROCESS FOR THE PRODUCTION OF POLYURETHANE FOAM USING

TETRAALKYLSTANNOXY BASED CATALYST

Inventor(s) Scussolin, S., Etzelstorfer, M., Manegold, C.


Corporate/Assignee Dow Global Technologies LLC


Abstract:

Foam Update

November 2015


A process for the production of a polyurethane foam product includes reacting a

polyisocyanate component and a polyol component in the presence of a tetraalkylstannoxy

based catalyst.

VISCOELASTIC SOUND-ABSORBING POLYURETHANE FOAM AND

PREPARATION METHOD THEREOF

Inventor(s) Zhao, J., Shen, C., Zhao, Y., Wei, P.


Corporate/Assignee Wanhua Chemical (Beijing) Co., Ltd.


Abstract:

The present invention discloses a viscoelastic sound-absorbing polyurethane foam and a

method for preparing the same, the foam being prepared by reacting a polyisocyanate

composition and an isocyanate reactive component. The isocyanate reactive component

comprises, based on the weight of mixed polyethers, 30-80 wt % of (bii) a copolyol of

epoxypropane-epoxyethane, or a conjugate thereof, wherein the content of oxy-ethylidene

unit is 5-35 wt %; 2-20 wt % of (biii) a copolyol of epoxypropane-epoxyethane, or a

conjugate thereof, wherein the content of oxy-ethylidene unit is 70-100 wt %; and 20-70

wt % of (biv) a copolyol of epoxypropane-epoxyethane, or a conjugate thereof, wherein

the content of oxy-ethylidene unit is 0-20 wt %. The sound-absorbing foam of the present

invention has a ball rebound rate of 15-30% and good sound absorption performance.

ORGANOPHOSPHORUS COMPOUNDS FOR FLAME RETARDANT

POLYURETHANE FOAMS

Inventor(s) Shankar, R. B., Yonkey, M. M., Qi, Y., Kamber, N. E.


Corporate/Assignee Dow Global Technologies LLC


Abstract:

An organophosphorus compound useful in a phosphorus containing flame retardant and a

flame retardant polyurethane foam, where the organophosphorus compound is shown in

Formula (I) where Y is selected from the group consisting of an --OH group, an --

NH.sub.2 group, an --NHR.sup.3 group, and an --SH group, where R.sup.3 is a

monovalent hydrocarbyl group having 1 to 10 carbon atoms; R is a divalent hydrocarbyl

group; X is a heteroatom group; and R.sup.1 and R.sup.2 are each independently a

substituted or unsubstituted hydrocarbyl group, wherein R.sup.1 and R.sup.2 can be

optionally joined to form a ring.

CERTAIN METATHESIZED NATURAL OIL TRIACYLGLYCEROL POLYOLS

FOR USE IN POLYURETHANE APPLICATIONS AND THEIR RELATED

Foam Update

November 2015


PHYSICAL PROPERTIES

Inventor(s) Narine, S., Pillai, P. K. S., Li, S., Boudzidi, L., Mahdevari, A.


Corporate/Assignee Trent University


Abstract:

Metathesized triacylglycerol polyols

derived from natural oils such as:

canola, rapeseed, olive, soy,

sunflower, safflower, linseed, tung,

mustard, camelina, hemp, algal and

castor oil are disclosed. The synthesis

of polyols derived from canola oil

metathesized triacylglycerols are also

disclosed and their uses in

polyurethane applications, including

polyurethane foams.

MANUFACTURE OF THIN-FILM POLYURETHANE FOAM LAMINATE

INVOLVES COATING FOAM COMPOSITION ON BASE MATERIAL,

THERMALLY-CURING FOAM COMPOSITION TO FORM POLYURETHANE

FOAM LAYER, AND FORMING COATING FILM BY APPLYING COATING

AGENT ON FOAM LAYER

Inventor(s) Sang, H. L.

Sources KR 1543974 B1


Publication Date August 11, 2015

Abstract:

NOVELTY: Manufacture of thin-film polyurethane foam laminate involves forming foam

composition by mixing and foaming copolyester system including polyol component,

isocyanate, bulk-forming agent, foaming agent and additive in a mixer, coating the foam

composition on base material (a), thermally-curing the foam composition to form

polyurethane foam layer, providing base material (b) on the polyurethane foam layer, and

forming coating film by applying coating agent on hardened polyurethane foam layer to

release the base material (b).

DESCRIPTION: Manufacture of thin-film polyurethane foam laminate involves forming

foam composition by mixing and foaming copolyester system including polyol

component, isocyanate, bulk-forming agent, foaming agent and additive in a mixer,

coating the foam composition on base material (a), thermally-curing the foam composition

to form polyurethane foam layer, providing base material (b) on the polyurethane foam

layer, and forming coating film by applying coating agent on hardened polyurethane foam

Foam Update

November 2015


layer to release the base material (b). The polyol component in the copolyester system

contains 50 pts. wt. polyol (A) including 20-40 triol groups or diol groups, and having

molecular weight of 2000-4000, 30 pts. wt. polyol (B) including 200-400 triol groups or

diol groups, and having molecular weight of 2000-4000, and 25 pts. wt. polyol (C)

including 200-400 triol groups or diol groups, and carprolactone group, and having

molecular weight of 2000-4000.

USE: Manufacture of thin-film polyurethane foam laminate (claimed).

TECHNOLOGY FOCUS

POLYMERS:Preferred Composition: The base material films (a) and (b) are chosen from

polyethylene terephthalate, black polyethylene terephthalate, polytetrafluoroethylene belt,

dimorphism polyethylene terephthalate and nonwoven fabric.

NOVEL APPLICATIONS OF CASTOR OIL BASED POLYURETHANES: A

SHORT REVIEW

Author(s) Shirke, A., Dholakiya, B., Kuperkar, K.

Sources Polymer Science: Series B 57, No.4, 2015, p.292-297


Publication Date August 14, 2015

Abstract:

Nowadays increasing interest is observed for using of bio-derived products replacing

petroleum based materials. This may reduce the fuel consumption and result in producing

of materials with lower environmental impact. One of such substances is vegetable oil,

which possesses unique chemical structure and consists of unsaturation sites, epoxies,

hydroxyls, esters and other functional groups along with inherent fluidity characteristics.

Such outstanding features enable them to undergo various chemical transformations

producing low molecular weight polymeric materials with versatile applications.Our

review discusses the synthesis of polyurethane from castor oil and provides an insight of

its prominent applications of castor oil based polyurethane as hybrid materials,

interpenetrating polymer networks, foams, adhesives, coatings.

Foam Update

November 2015


SUPERELASTICITY AND REVERSIBLE ENERGY ABSORPTION OF

POLYURETHANE CELLULAR STRUCTURES WITH SAND FILLER

Author(s) Zhou, J., Deng, X., Yan, Y., Chen, X., Liu, Y.

Sources Composite Structures 131, No.1, 2015, p.966-974



Abstract:

As a promising candidate for energy absorption and resilient system, a polymer encased

sand structure is studied experimentally. The polyurethane (PU) cellular structures are

consisted of periodically arranged hollow truncated hemi-ellipsoids with sand particles

filled inside. The resilience of PU and dissipation of sand are combined to construct a

high performance energy absorption material and structure (EAMS) which exhibit

superelasticity with reversible compression strain up to 0.9 and have recoverable energy

absorption capability of about 3.4 MJ/m3 per loading cycle. The compressive stress of

the sand filled PU cellular structures is also significantly enhanced (thanks for the sand

filler) for compressive strain larger than 0.4. The sand filled PU cellular structures are

soft and flexible to stretch, bend and twist, thus compatible for personnel protection. The

results presented in this work provide guidelines for designing and engineering high

performance EAMS that are resilient, flexible, and of high energy absorption density.

SYNTHESIS OF BIO-CASTOR OIL POLYURETHANE FLEXIBLE FOAMS

AND THE INFLUENCE OF BIOTIC COMPONENT ON THEIR

PERFORMANCE

Author(s) Wang, C., Zheng, Y., Xie, Y., Qiao, K., Sun, Y., Yue, L.

Sources Journal of Polymer Research 22, No.8, 2015, paper 145, pp.9



Abstract:

A series of bio-based polyurethane flexible foams were synthesized by substituting

polyether polyol with castor oil and polyethylene glycol (PEG). The influence of the

castor oil component in the prepolymers on the structure and properties of the castor oil-

based polyurethane flexible foams were investigated and compared. FTIR (Fourier

transform infrared spectroscopy) results confirmed that bio-based polyurethane was

successfully synthesized by castor oil, PEG and MDI (diphenyl methane diisocyanate),

and its urethane group content decreased as the castor oil content increased from 40 to 60

wt.%. TG (thermogravimetry) and DTG (derivative thermogravimetry) results showed

that the thermal degradation of the bio-based polyurethane flexible foams occurred at

about 150, 320 and 420 °C. The Young’s modulus improved from 0.196 to 1.235 KPa

and the compression resilience improved from 97.76 to 99.65 % with increased content

of castor oil. Moreover, these bio-based foams exhibited lower water absorption and

higher contact angle with increased castor oil content.

Foam Update

November 2015


PRODUCTION OF POLYOLS AND NEW BIPHASIC MONO-COMPONENT

MATERIALS FROM SOY HULLS BY OXYPROPYLATION

Author(s) Rosa, J. R., da Silva, I. S. V., de Lima, C. S. M., Pasquini, D.

Sources Industrial Crops and Products 72, No.1, 2015, p.152-158


Publication Date January 9, 2015

Abstract:

The present study is aimed at oxypropylating soybean hulls (SH) to obtain two products

in a single reaction: a viscous polyol (SHP) and a solid fibrous residue of soybean hulls

modified on the surface (SHBM) by a layer of thermoplastic polymer poly (propylene

oxide). The oxypropylation reaction was conducted by polymerizing propylene oxide in

the presence of the SH in a reaction catalysed by KOH at 150 °C. The chemical

composition of the SH was determined. The samples before (SH) and after

oxypropylation (SHP and SHBM) were characterized by Fourier Transform Infrared

Spectroscopy and thermogravimetric analysis. The SH and SHBM were also

characterized by scanning electron microscopy and X-ray diffraction. The SHP was

characterized with respect to its hydroxyl index value (IOH), intrinsic viscosity [η] and

with respect to the amount of poly (propylene oxide) homopolymer (PPO) formed. These

characterizations were carried out in order to assess the effectiveness of the process and

verify the applicability of both products: (i) for producing polymer derivatives such as

polyurethane foams in the case of polyol; and (ii) to prepare biphasic monocomponent

composites in the case of the superficially oxypropylated residue.

PREPARATION OF BIO-BASED RIGID POLYURETHANE FOAM USING

HYDROLYTICALLY DEPOLYMERIZED KRAFT LIGNIN VIA DIRECT

REPLACEMENT OR OXYPROPYLATION

Author(s) Mahmood, N., Yuan, Z., Schmidt, J., Xu, C.

Sources European Polymer Journal 68, No.1, 2015, p.1-9


Publication Date April 23, 2015

Abstract:

Bio-based rigid polyurethane (BRPU)

foams were successfully produced using

hydrolytically depolymerized Kraft lignin

(DKL, with Mw ∼1700 g/mole, aliphatic

hydroxyl number: 365 mgKOH/g) as bio-

polyols at high percentage of bio-contents

i.e., 50 wt.%. BRPU foams were prepared

via two routes, i.e., replacing PPG400 or

sucrose polyol directly with DKL, and

oxypropylation of DKL. The reference

and BRPU foams were characterized in

Foam Update

November 2015


terms of their physical, mechanical and thermal properties. All BRPU foams exhibit good

compressive strengths as well as compression modulus, compared with reference foams.

The compression moduli of the foams decrease in the following order: BRPU foam with

oxypropylated-DKL (10986.0 kPa) > BRPU foam with 50 wt.% sucrose polyol and 50

wt.% DKL (5152.0 kPa) > sucrose polyol reference foam (2086.0 kPa) > BRPU foam

with 50 wt.% PPG400 and 50 wt.% DKL (1016.0 kPa) > PPG400 reference foam (789.1

kPa). Thermal conductivity of BRPU foams varied between 0.029 and 0.038 W/m K,

with the lowest being of foam from oxypropylated-DKL, making it suitable for utilization

as an insulation material.

LIGHTWEIGHT RIGID FOAMS FROM HIGHLY REACTIVE EPOXY RESINS

DERIVED FROM VEGETABLE OIL FOR AUTOMOTIVE APPLICATIONS

Author(s) Mazzon, E., Habas-Ulloa, A., Habas, J.

Sources European Polymer Journal 68, No.1, 2015, p.546-557


Publication Date April 11, 2015

Abstract:

For the two last decades, the reduction of fuel consumption and CO2 emissions is a topic

of first importance in automotive industry. Among the possible technical approaches, the

reduction of the vehicles weight seems to be a promising solution. This option can be

achieved by the growing use of lightweight structures based on rigid foams. However,

most of the commercial materials are oil-based and sometimes involve harmful chemical

compounds. Moreover, some products that require long time processes are inadequate for

fulfilling automotive cadence. In this paper, we investigated the development of new

generation of highly reactive epoxy foams. These materials were obtained by mixing

epoxidized plant oil-derivates with a cycloaliphatic amine hardener (isophorone diamine

IPDA) and a harmless foaming agent (sodium bicarbonate NaHCO3 named SB). The

chemical composition of the reactive mixture was optimized by adding several chemical

additives acting as “exothermicity regulators” (ER) in order to control more particularly

the exothermicity of the curing reaction. Their efficiency in the consumption of the heat

excess released during cross-linking was explored. Kinetic rheological analyses, DSC and

TGA experiments were used to tune the dosing of each chemical component in the

reactive formulation. They made it possible the production of foams in a few minutes (<3

min) with an ultimate glass transition temperature close to 48 °C and apparent density of

about 0.17 g cm−3.

MECHANICAL CHARACTERIZATION OF PHENOLIC FOAMS MODIFIED

BY SHORT GLASS FIBERS AND POLYURETHANE PREPOLYMER

Author(s) Yang, Y., He, J.

Sources Polymer Composites 36, No.9, 2015, p.1584-1589


Foam Update

November 2015



Abstract:

Short glass fibers and polyurethane prepolymer were used to modify phenolic foams. The

mechanical properties of the composites were characterized and compared with those of

foams unmodified and modified with only polyurethane prepolymer or short glass fibers

in terms of friability, compression, and bending properties. It shows that polyurethane

prepolymer significantly improved the toughness and reduced the friability of phenolic

foams, while short glass fibers markedly increased the compression and bending

properties. The compound modified foams exhibited significantly lower friability and

higher resistance to cracking behavior than conventional phenolic foams and the foams

modified with only short glass fibers, and were much stiffer and stronger than

conventional phenolic foams and the foams modified with only polyurethane prepolymer.

The compound modified phenolic foams with the 1:3 ratio of short glass fibers to

polyurethane prepolymer exhibited excellent integrated mechanical properties.

POLYURETHANE FOAMS BASED ENTIRELY ON RECYCLED POLYOLS

DERIVED FROM NATURAL OILS

Author(s) Horák, H. B.

Sources Polimery 60, No.9, 2015, p.579-585


Publication Date N/A

Abstract:

Flexible polyurethane (PUR) foam was chemically recycled using two types of

oleochemical polyols based on rapeseed oil and waste fish oil. The functional hydroxyl

groups of the oleochemical polyols reacted with the urethane and the disubstituted urea

structures of flexible PUR foam at temperatures around 200 °C. The liquid recycled

polyols with hydroxyl numbers ca. 175 mg KOH/g were obtained after 2 h of the

reaction. Only the recycled polyols without additional virgin polyols were used for the

preparation of low density PUR foams. PUR foams with free rise density of 30 and 50

kg/m3 were prepared exhibiting semi-rigid character due to the presence of soft segments

of fatty acid chains.

g. Microcellular and Expanded Particle

METHOD FOR PRODUCING POLYCARBONATE RESIN FOAM MOLDED

ARTICLE

Inventor(s) Tokiwa, T., Gomibuchi, M., Sato, K.


Corporate/Assignee JSP Corporation (Tokyo, JP)


Abstract:

Foam Update

November 2015


The present invention provides a foamed molded article production method that can

produce polycarbonate resin foamed blow-molded articles, etc. Which are good over a

wide range of densities. The present invention is a method for producing a foamed molded

article including extruding a foamable molten resin, formed by kneading a polycarbonate

resin, a polyester resin in an amount of 5 to 100 parts by weight per 100 parts by weight of

the polycarbonate resin and a foaming agent, from a die to obtain a foamed parison, and

molding the foamed parison in a softened state in a mold. The polyester resin is a

polyester copolymer containing diol component units, 10 to 80 mol % of which are glycol

component units each having a cyclic ether structure, and dicarboxylic acid component

units.

POLYPROPYLENE RESIN FOAMED PARTICLES, POLYPROPYLENE RESIN

IN-MOLD FOAM MOLDED ARTICLE, AND METHOD FOR PRODUCING

SAME

Inventor(s) Yoshida, T.


Corporate/Assignee Kaneka Corporation


Abstract:

Polypropylene resin foamed particles containing a

polypropylene random copolymer having a ratio of

a Z-average molecular weight Mz to a number

average molecular weight Mn, Mz/Mn, of 20 or

more and 300 or less, a melt-flow rate of 5 g/10

minutes or more and 20 g/10 minutes or less, a melt

strength of 2.5 cN or less, and a flexural modulus of

600 MPa or more and 1600 MPa or less, and

preferably having at least two heat quantity areas of

fusion can provide an in-mold foam molded article

such as a returnable box having a short molding

cycle at in-mold foam molding and beautiful surface properties; and are excellent in

moldability even if an inner pressure more than the atmospheric pressure is not provided

to the particles or the particles are filled in a mold without compressing them with a gas

during the in-mold foam molding.

DEGRADATION OF MICROCELLULAR PLGA-PEG COPOLYMER FOR USE

IN A DRUG DELIVERY SYSTEM FOR THE URINARY BLADDER

Author(s) Hopmann, C., Kaltbeitzel, D., Kauth, T., Dittrich, B., Grosse, J.,

Huppertz, N., Schwantes, U., Neumeister, C., von Walter, M.

Sources Plastics Engineering, October, 2015, P.60-64


Foam Update

November 2015



Abstract:

For the treatment of diseases of the bladder, a drug delivery system (DDS) has been

developed which can be applied intravesically. The DDS is composed of multiple carriers

that consist of non-absorbable, drug-carrying microspheres which are embedded in a

foamed absorbable matrix. After degradation of the absorbable matrix, the nonabsorbable

microspheres are eliminated through the urethra. The foamed absorbable matrix is

fabricated out of a poly(D,L-lactide-co-glycolide)-co-polyethylene glycol di-block

copolymer, due to its short degradation time. These polymers are temperature-sensitive

and therefore manufactured by the controlled expansion of saturated polymers (CESP)

process. The foam structure, which influences the degradation, is controlled by the

process parameters. Within this paper the influence of the process parameters on the

degradation of the implants is investigated.

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