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Chemicals

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NOVARES Resins forthe Adhesives Industry


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NOVARES

Resins you can trust on.

Company Profile

RTGERS Chemicals GmbH is an inter-national company and worldwidemarket leader in the field of aromaticchemistry. Basis for this position is theflexibility and innovation strengthas well as a partnership co-operationwith customers. With more than150 years of experience RTGERSChemicals GmbH is an ideal partnerwithin the multifarious areas of endproduct application, especially fordeveloping new products with inno-vative solutions.

Our customers, with whom we workin close partnership, are manufacturersof paints, varnishes, coatings adhesives and sealants rubber goods printing inks

Products

NOVARES resins are thermoplastichydrocarbon resins based on petro-chemical and carbon feedstock. With

innovative product ideas, logisticsconcepts and high flexibility we setstandards in tailor-made products. TheNOVARES delivery program covers abroad range of different resins with awide range of softening points.

Our production, application technologyand sales are of course certified inaccordance with the quality andenvironmental standards DIN EN ISO9001 and DIN EN ISO 14001.

Delivery forms

Pastilles in paper bags, big bags Molten resins in heatable tank

container Liquid resins in 200 l-drums, IBCs

or tank container Dissolved in solvents

C9 resins

C CH2CHCH2

CH3

CH2CH

CH3

CH3


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Resins forthe Adhesives Industry

Hot melt Adhesives _________________________________________________________________________ 4

Dispersion Adhesives ______________________________________________________________________ 5

Solvent borne Adhesives ___________________________________________________________________ 8

Pressure Sensitive Adhesives _____________________________________________________________ 10

Polyurethane Hot melt Adhesives __________________________________________________________ 11

Tailor made resins for Adhesives ___________________________________________________________ 15

Content

3

Chemicals


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NOVARES resins allow the formulator to produce an adhesive with optimum properties andoffer the following advantages: improvement of adhesion properties and heat resistance increase of hot tack control of melt viscosity adjustment of open time

Typical hot melt application areas in whichNOVARES are successfully used are: .

edge banding profile wrapping surface lamination assembly

Adhesives are subjected to a variety of conditions, e.g. humidity and temperature fluctuations

in kitchen, bath and outdoor areas. Also stress in edge banding requires high quality products.NOVARES resins are well established and ensure a good bond.

Due to their very good compatibility with EVA-copolymers even at high resin softening pointsup to 160C, NOVARES TNgrades are the resins of first choice in hot melt adhesives for wood-working applications.

NOVARES Resins for Hot melt Adhesives

Woodworking

Hot melt Adhesives

300

250

200

150

100

50

0

TN

TT160 150 140 130 120

Softening point [C]

Cloudpoint[C]

Comparison of NOVARES TN to NOVARES TT (standard C9-resin)

(resin : EVA 28/400 : paraffin 62/64 = 1:1:1)


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Chemicals

300

250

200

150

100

50

0

TT 120 TN 120 TS 120 (aliphatically TK 120 (aliphatically(standard) modified) modified)

VA 33%

VA 28%

VA 18%

Cloudpoint[C]

Cloud points of binary mixtures of NOVARES(resin : EVA = 1 : 1)

The higher the VA-content of the EVA-copolymers the better the compatibility with the NOVARESresins.

NOVARES resin types for woodworking hot melt adhesives

EVA-based hot melt adhesives for: NOVARES resin types

Edge banding, profile wrapping, TN 100 - TN 160surface lamination, assembly TT 120, TT 140

TS 120, TS 140TK 100C 100, C 120

The backbone polymer (in this case EVA) defines the typical properties of the hot melt adhesive.The degree of the compatibility of resins with EVA determins the cloud point. Depending on thechemical structure of the NOVARES types different cloud point ranges can be achieved.


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Paper and Packaging Hot melt Adhesives

The equipment in the paper and packagingindustry operates with high speed cycle timeand therefore there are many demands on theadhesives. The adhesive has to form a quickbond and must not break under stress. Otherchallenges to the adhesive are differentsubstrates and surfaces. The adhesives havean important influence on the stability anddurability of the packaging.

Resin are commonly used to improve hot tack control melt viscosity adjust open time

Aliphatically modified aromatic NOVARES TKresins are especially recommended astackifiers for hot melts used for paper andpackaging applications.

The resins are distinguished by a good EVA and wax compatibility a high thermal stability light colour


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Chemicals

The influence of the NOVARES TK range on compatibility und flexibility

300

250

200

150

100

50

0

TK 90 TK 100 TK 110 TK 120

VA 33%

VA 28%

VA 18%

Cloudpoint[C]

Cloud points of NOVARES TK resins with softening points from 90C - 120C(resin : EVA = 1 : 1)

TK 90 TK 100 TK 110 TK 120

4

3,5

3

2,5

2

1,5

1

0,5

0

50

45

40

35

30

25

20

15

10

5

0

Tensilestrength[MPa]

Elongation[%]

----Tensile strength

----Elongation

Tensile strength and elongation(resin : EVA 28/400 : Sasolwax H1 = 5 : 3 : 2)

NOVARES resin types for paper- and packaging hot melt adhesives

EVA-based hot melt adhesives for: NOVARES resin types

Case and carton, bookbinding, TK 90 - TK 100

graphic arts industry TK 90 H - TK 110 HTP 100TS 100


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NOVARES Resins for Dispersion Adhesives

70

60

50

40

30

20

10

0

Standard-formulation

EC1 Formulationwith LS 500

F[N/5

cm]

after 10 min after 15 min after 20 min after 30 min

Wet tack

21,8

1,6

1,4

1,2

1,0

0,8

0,6

0,4

0,2

0


EC1 Formulation

with LS 500

F[N/5cm]

after 10 min after 30 min

Peel strength

In dispersion adhesive systems based on acrylic, PVAc, VAE and SBRNOVARES resins have taken a strong position. Ageing resistance and alow emission value in the formulation are requirements which have to befulfilled by modifiers. The liquid resins NOVARES LS 500and LX 200arepopular solubilisers and carriers for resins used in dispersion adhesiveformulations. They can be used to replace solvents and plasticisers withthe advantage of having a lower proportion of volatile components.LS 500and LX 200can assist in the formulation of dispersion adhesiveswhich meet EC1 requirements.

By using NOVARES LS 500 in acrylic based adhesives a clear improvement of the peel strength,wet tack and dry tack is shown.


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Chemicals

16

14

12

10

8

6

4

2

0


EC1 Formulationwith LS 500

F[N/5cm]


Dry tack

Open Time

25

20

15

10

5

0

without soft resin

with TMA 20

F[N/5cm]


Acrylic based dispersion adhesives, modified with NOVARES TMA 20

Dry tack

The adjustment of open time has an important role to play during floor laying. Soft resins extendthis parameter. NOVARES TMA 20 was developed especially for this purpose.


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Selected NOVARES resins for dispersion adhesives

Positive effect on: NOVARES resin types

Processing viscosity LX 200, LA 300, LS 500, L 800

Legging LS 500, TT 10, TL 10, TN 15, TM 20

Peel strength TN 80, TNA 80, TK 90, CA 80

Open time TMA 20

NOVARES Resins for Solvent borne Adhesives

Due to their good tack and processing pro-perties giving secure and durable bondings,solvent based adhesives are still being used.

NOVARES resins offer the following advan-tages in solvent borne adhesives, e.g. basedon PVAc, polychloroprene, SBR:

adjustment of open time

lower processing viscosity

improved adhesion and cohesion

improved heat resistance

For the manufacture of parquet adhesives

especially

NOVARES TNA 80and TNA 90resinsare recommended.

These resins are characterised by

good compatibility with polar polymers(PVAc) because of their modification withphenol

improvement of adhesion

increase of cohesiveness and thermalplasticity

positive effect on the pseudo plasticity

increase of oxidation and ageing resistancein comparision with natural resins

increase of hydrophobic character.


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Chemicals

Selected NOVARES resins for solvent borne adhesives

NOVARES Resins for Pressure Sensitive Adhesives

Pressure sensitive adhesives (PSA) are permanentlytacky products, which achieve a bond under lightcontact pressure. A PSA is able to carry forward forcesup to a certain level. The cohesion of that adhesivecan be improved by using high melting NOVARESresins, e.g. C 160, TN 160and TN 170. These resinsare endblock-reinforcers in PSA on the basis of styrenic

block copolymers like SIS, SBS und SEBS. .They improve heat stability shear resistance softening point of the formulation

Solvent borne adhesives for: PVAc-based Polychloroprene- SBR-based SIS-/ SBS-based based

Flexible flooring, CA 80, CA 90 C 10 TT 10 TN 160, TN 170parquet, laminate, TNA 80, TNA 90 C 100 - C 160 TL 10foot wear, leather, DIY TNA 120 TT 10 TT 100, TT 120

soluble in TT 100 - TT 140

alcohol TN 120 - TN 160

NOVARES resins do not display any tendency to re-crystallise and can reduce or inhibit thetendency of natural resins to crystallise in compounds.


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Erweichungspunkt der Klebstoffformulierung

The influence on the application technology characteristics ofa hot melt adhesive based on SIS with14% of NOVARES resin

120

100

80

60

40

20

0

without resin

with TN 170

with C 160

SAFT[C]

5000

4500

4000

3500

3000

2500

2000

1500

1000

500

0

without resin

with TN 170

with C 160

StaticShear[min]

160

140

120

100

80

60

40

20

0

without resin

with TN 170

with C 160

Softeningpoint[C]

SAFT

Static Shear

Softening point of the adhesive formulation


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Chemicals

NOVARES Resins for Reactive PolyurethaneHot melt Adhesives

Influence of NOVARES resins to DYNACOLL*1)based reactivePU hot melt adhesives

Recipe R-0 R-1 R-2 R-3 R-4 R-5

DYNACOLL 7160 36 37 27 27 27 27

DYNACOLL 7250 36 26 36 36 36 36

DYNACOLL 7390 18 18 18 18 18 18

DYNAPOL*1)S 350 9 9 9 9 9 9

NOVARES TM 20 10NOVARES TM 80 10

NOVARES TM 90 10

NOVARES TK 100 10

NOVARES TA 100 10

4,4-MDI OH/NCO ratio = 1 : 2.2

Stated in parts by weight

20

15

10

5

0

R-0

R-1

R-2

R-3

R-4

R-5

Viscosityat130C[Pas]

Viscosity

without resin TM 20 TM 80 TM 90 TK 100 TA 100

In bath and kitchen areas there are strong demands for adhesives giving heat, humidity andwater resistance.

NOVARES resins act in reactive PU-adhesives as modifiers for the: improvement of open time adjustment of compounding viscosity

The hydrophobic character of NOVARES resins has a positive effect on the water resistance ofthe adhesive.


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1400

1200

1000

800

600

400

200

0

R-0

R-1

R-2

R-3

R-4

R-5

Time[s]

Open time (paper strip)

*1) Trade mark of Degussa AG

DYNACOLL DYNACOLL DYNACOLL DYNACOLL DYNACOLL DYNACOLL DYNACOLL DYNACOLL

Resin 7130 7150 7220 7230 7250 7321 7360 738070:30 90:10 70:30 90:10 70:30 90:10 70:30 90:10 70:30 90:10 70:30 90:10 70:30 90:10 70:30 90:10

TA 100

TK 100

TM 90

TN 100

TN 120

TNA 120

TS 120

TT 120

turbid clear separation

Compatibility of NOVARES resins with DYNACOLL*1)

Resin and DYNACOLL were mixed at a temperature of 160C in a test tube and afterwards stored24 hours at a temperature of 130C.

without resin TM 20 TM 80 TM 90 TK 100 TA 100


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Chemicals

This information is based on the present level of knowledge. Due to the fact that the individual conditions are beyond ourcontrol, no warranty or product liability can be given.

Tailor made NOVARES resins

NOVARES resin solid and liquid types for the adhesives industry

NOVARES

Softe

ning

Point[C]

*phenolic modifiedincreasingly aliphatic

170 TN

160 C TN150 C TN

140 C TT TN TK130 C TN

120 C CA* TT TN TNA* TA* TX TK TS110 TT TN TK100 C TT TN TA* TL TR TP TK TS

90 C TM TT TNA*80 C CA* TM TN TNA*

70 C

6050

4030 C20 TM TMA*

15 TN10 C TT TL

0aromatic aromatic, aliphatically modified

NOVARES resins are distinguished by the diversity of their chemical composition and their widerange of softening points. This diagram shows NOVARES resin types according to their softeningpoint and their increasing aliphatic character.

The NOVARES C series are typical indene coumarone resins. NOVARES TT resins are producedby the polymerisation of the petro-based aromatic C9-fraction and are the standard resins foradhesive industry.Tailor made resins which have influence on compatibility and solubility can be produced by: targeted combinations of aromatic monomers (NOVARES TN, TL, TM, TX) modification with aliphatic monomers (NOVARES TK, TS, TP, TR) modification with phenol (NOVARES TNA, TA, TMA)

The adhesive producer can select his tailor made resin for his specific formulation from a wideand comprehensive range of NOVARES types.


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RTGERS Chemicals GmbHVarziner Strasse 49D- 47138 DuisburgTel. +49-203-429602Fax [email protected]

Chemicals

03/2007

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