novares and ruetasolv · for the coatings industry ... paints and varnishes have a broad range of...

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Novares® and ruetasolv® for the Coatings Industry

Rütgers_englische Fassung.indd 1 30.04.13 11:42

Company Profile

The RÜTGERS group with it‘s eight international produc-tion sites is a global market leader in the field of aromatic chemicals. The company’s success is based on flexibility and innovation along with partnership-based cooperation with clients. With some 150 years’ experience the RÜTGERS group is a competent and reliable partner for all kinds of applications, particularly when it comes to developing innovative pro-ducts for new challenges.

Paint and VarnishesCivil EngineeringHeavy-duty Corrosion ProtectionCavity ProtectionPigment PastesApplication Advantages- Novares and Ruetasolv in EP-Systems- Influence on Potlife, Nonylphenol Replacement- Migration Tendency, Water Repellency- FlexibilityWater borne Epoxy ResinsBenzylalcohol ReplacementNovares and Ruetasolv in PUR Systems- Hardness Development- Water Repellency

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Novares® and ruetasolv®: on track for Durable surface ProtectionContent


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Our Products

Novares resins are thermoplastic hydrocarbon resins based on petrochemical and carbon feedstock. With innovative product solutions and logistical concepts and a high level of flexibility we can adapt to a large range of individual custo-mer needs. Our clients can choose from a broad selection of different resins with a wide range of viscosities and softening points. We can provide these products tailor-made to special requirements.Ruetasolv products are non-reactive modifiers based on naphthalene or biphenyl and are suitable for coatings, cas-ting resins, reactive- and water-borne systems.

Delivery Forms

– solid resins in pastilles supplied in paper bags and big bags

– molten resin in heatable tankcontainer – liquid resins in drums, IBCs or by tanktruck – solid resins dissolved in solvents.

Our production processes, application technology and marketing system are of course certified according to DIN EN ISO 9001, EN ISO 50001 and DIN EN ISO 14001 quality and environmental standards.

IsopropylbiphenylsIsopropylnaphthalenes

CHCH2 CH2

CH3

CH2CH

CH3

CH3

C9 Resins

Novares® and ruetasolv®: on track for Durable surface Protection


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Paints and varnishes

Paints and varnishes have a broad range of requirements to cover, with their main purpose being to protect surfaces and provide them with a decorative design. The type of basic binder to be used will depend on the particular application and usage.Using Novares resins as co-binders means that the required technical properties of the coating system can be adjusted and improved to suit your preferences.

The practical benefits of Novares resins include: - reduced drying time- improved adhesion- increased solid content- reduced solvent content- increased film durability - improved moisture resistance.

Selected Novares resins for paints and varnishes

Alkyd Compatibility

Application Alkyds Acrylates Vinyls

Corrosion protection, TD 100 - TD 120 Industrial application, TL 100 - TL 120 Primer TT 100 - TT 120 LF 220, 100 LF 220, 115

Wood protection TK 100

Metal protection CA 80 TNA 80

Road markings, Top coats TM 90

Novares TD 100 TD 120 TT 100 TT 120 Resin content (%) 10 25 50 10 25 50 10 25 50 10 25 50

Fatty acid modified alkyd, Short oil, Low viscosity P P P P P P P P P P P P

Fatty acid modified alkyd, Short oil, Air drying P P P P P P P P P P P P

Soya bean oil alkyd, Short-/medium oil, Air drying P P P P P P P P P P P P

Soya bean oil alkyd, Medium oil, Air drying P P P P P P P P P P P P

Linseed oil-/Tall oil alkyd, Resin modified P P P P P P P P P P P P

Soya bean oil fatty alkyd, Medium oil, Fast drying P P P P P P P P P P P P

Fatty acid modified alky, Urethane modified, Air drying P P P P P P P P P P P P

Fatty acid modified alkyd (vegetable oil), Short oil, Air- and heat drying P P P P P P P P P P P P

P compatible P partially compatible P incompatible


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Civil engineering

In the civil engineering industry Novares resins and Ruetasolv products are used in many different applications based on a wide range of reactive resin systems. The scope of uses extends from floor coverings and sealing systems to formulations for roof coatings, wind generator construc-tion, casting resins and pottings for electrical and electronic equipment.

Novares resins and Ruetasolv products offer the following advantages in this particular area:- improved resistance to moisture and aqueous media- improved adhesion to substrate- improved intercoat adhesion- reduced brittleness/improved flexibility- rheology control- enhanced wetting of pigments and fillers- increased solid content / reduced solvent content.

Selected Novares resins and Ruetasolv products for civil engineering

Application Epoxy 2K PUR 1K PUR Polysulfide Silanterm. PUR

Floorings, EPX-L, EPX-L5 Ruetasolv L 100 EPX-L EPX-L2 Membranes, LA 300, LA 700 L 800 L 100 L 100 Sealants LC 20, LC 40 Ruetasolv LA 700 TL 10 Ruetasolv LC 25

Roadmarking, Roadconstruction, LA 1200 LA 1200 Jointing compounds HA 2100 HA 2100

Sealing systems for EPX-L EPX-L2 L 100 waterproof membranes, LA 700 C 10 L 800 Resin injection LS 500 L 800 Ruetasolv Ruetasolv Ruetasolv

Mortars EPX-L2 HA 30 Ruetasolv


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Heavy-duty Corrosion Protection

Expensive capital equipment such as industrial facilities, ships and pipelines need reliable protection from corrosion. Anti-corrosion coatings based on reactive resins play a key role in preserving the value and operational reliability of facilities of this type. Novares resins and Ruetasolv make a major contribution to the performance and effectiveness of such coatings.

Novares resins and Ruetasolv products help to provide the following technological benefits:- water-repellency and resistance to aqueous media- improved adhesion to substrate- improved intercoat adhesion- reduced brittleness/improved flexibility- rheology management- enhanced pigment and filler wetting.

Selected Novares resins and Ruetasolv products for heavy-duty corrosion protection

Application Epoxy 2K PUR 1K PUR

Target: Hydrophobicity / Flexibility LA 300, LA 700 LA 700 C 10 Marine paints, Off shore, EPX-L, EPX-L5 LA 1200 L 100 Industrial corrosion protection LC 15, LC 20, LC40 EPX-L L 800 (pipelines) TL 10 Ruetasolv TL 10 Ruetasolv Ruetasolv

Target: Hydrophobicity / Fast physical drying CA 80 - 100 TL 100 Marine paints, Off shore, TD 100 - 120 TM 90 Industrial corrosion protection TL 100 - 120 (pipelines) TN 110 TT 100 TM 90

Corrosion protection, Steel construction for HA 1100, HA 2100 L 800 L 100 hydraulic engineering LA 700 LA 1200 L 800 EPX-L Ruetasolv Ruetasolv TL 10 Ruetasolv


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Cavity Protection

In the automotive industry the protection of the bodywork and undersealing plays a key role in extending vehicle life. Applying noise-reducing coatings provide a more pleasant ride.

Novares resins provide outstanding properties to the overall system:- high heat resistance- improved resistance to water- high film durability- reduced moisture absorption- high abrasion resistance- reduced noise transmission over a wide range of temperatures and vibration levels.

Selected Novares resins for cavity protection

Application Recommendation

Cavity preservation NL 85 - NL 100 TA 100 TD 100 - TD 110 TT 100

Temporary corrosion protection TK 100

Quenching oils TK 100

Noise insulation LF 220, 100 NL 100 TD 90 – TD 120


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Pigment Pastes

The excellent wetting properties of Novares special liquid resins and Ruetasolv products make them ideally suited for the preparation of pigment formulations. These liquid resins and modifiers are solvent free and are therefore espe-cially suitable for the formulation of low-VOC and VOC-free systems. The low product viscosities also mean that high pigment concentrations are possible.

Advantages of using Novares and Ruetasolv in pigment pastes:

- good compatibility with epoxy resins, PUR and acrylates- high pigment concentrations- excellent material flow and pumpability- fewer/zero solvents required.

Selcted Novares resins and Ruetasolv Products for pigment pastes

Application Recommendation

Pigment pastes for 1K PUR L 100 L 800 Ruetasolv

Pigment pastes for PVC L 100 L 800

Pigment pastes for 2K PUR and EP-systems L 100 EPX-L2 LA 300 / EPX-L5 Ruetasolv


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Pot life Nonpolar modifiers such as Ruetasolv and Novares L 100 will extend the pot life of the system because of the dilution of the reactive components. The polar OH group has an impact on the pot life - as has been determined by using Novares LA 300.

In general an increase in the OH content of the liquid resin results in a reduced pot life of the EP system. The pot life is defined as the period of time from the mixing of the components until the formulation achieves twice the initial viscosity level.

[mPa

*s /

25°C

]

unmodified + 20% Ruetasolv DI + 20% Novares L 100 + 20% Novares LA 300 / EPX-L5

2500

2000

1500

1000

500

0

35

30

25

20

15

10

5

0

[min

]

Pot life


Viscosity reductionLow viscosity modifiers enable the adjustment of requiered processing and product viscosity.

Reduce product viscosity improves the surface wetting and the adhesion properties of the coating.

viscosity in epoxy resin systems

application advantages

Epoxy resins are an important product category in corrosion- protection and civil engineering applications. Novares resins and Ruetasolv products are often used in combination with epoxy resins in order to achieve the desired product charac-teristics.

The product properties that can be adjusted by using Novares and Ruetasolv in EP systems are described in detail below.

Novares and Ruetasolv in epoxy resin systems


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Pot life as a function of polarityThe following graph illustrates how the polarity of the liquid resin, as mentioned above, affects the curing of the epoxy system.

Substitute for nonylphenolNovares liquid resin LS 500 has the highest polarity and when used in the EP system it displays a similar accelerati-ve effect during the curing reaction as nonylphenol. Novares LS 500 is therefore recommended as a possible substitute product.

The following graphic compares nonylphenol and Novares in terms of their effect on the pot life of the system.

Pot life

unmodified LC 5 LC 15 LC 40 LC 60 LS 500

LS 500 Nonylphenol LA 700 / EPX-L LC 40

[min

][m

in]

25

20

15

10

5

0

16

14

12

10

8

6

4

2

0

Nunmodified N+ 5 % ModifierN+ 10 % ModifierN+ 15 % ModifierN + 20 % Modifier

An increase in the OH content of the liquid resin leads to a reduction in pot life. (LC 5 = 0,5% OH; LC 60 = 6,0 % OH)


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Destilled Sulfuric- Acetic- Lactic- Sodium Potassium Ammonia Ethanol Water acid acid acid carbonate hydroxide 10% 10% 10% 10% 10% 20% 10%

Migration properties of Novares and RuetasolvNovares liquid resins and Ruetasolv products are not chemically bound into the epoxy resin structure. When compared directly, polar Novares resins have a lower tendency of migration from the EP system. This can be attributed, among other things, to the OH groups that

are attached via hydrogen bridge bonding to the nitrogen from the hardener structure. The following graph compares the migration characteristics of Novares and Ruetasolv. Here the weight loss was measured after 22 days storage of the samples at room temperature.

Water repellency and chemical resistanceNovares resins and Ruetasolv products have a very hydro-phobic, aromatic structure that significantly increases the resistance of civil engineering and corrosion-protection systems to moisture and aqueous media. After 6 months storage in a range of aqueous media the Novares-modified EP system exhibited a much lower weight increase than the unmodified reference system.

This means that the modified expoxy systems are showing a much better performance under heavy environmental conditions, e.g. offshore sector, compared with unmodified formulations. Because of their positive characteristics the modifiers generally help extend the life-span of the formula-tion and also provide increased surface protection.


1,6

1,4

1,2

1,0

0,8

0,6

0,4

0,2

0

25

20

15

10

5

0

[%]

wei

ght

incr

ease

[%]

Migration property

Hydrophobicity

unmodified N20% Novares LA 300 / EPX-L5 N


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Improved flexibility/plasticisationNovares modifiers and Ruetasolv products reduce the brittleness and hardness of EP systems. The low glass transition temperatures of the modifiers reduce the tensile strength in the system and increase the elongation.

The coatings become more flexible and the impact resis-tance of the formulation is significantly improved.

Mechanical properties

unmodified 20% Ruetasolv DI 20% Novares L 100 20% Novares LS 500

60

50

40

30

20

10

0

N Tensile strength [MPa] NElongation [%]

[MPa

] /

[%

]


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Novares in waterborne epoxies

During the recent year’s waterborne epoxies expanding steadily their market share in civil engineering and corrosion protection application. The main target for this health and environmental friendly development is to avoid solvents without losing the technical performance of the coatings. The liquid resins showing good storage stability after incorporated in the waterborne amine part. Like in conventional epoxy

coatings Novares liquid resins are improving also the per-formance of waterborne epoxy systems. The wide polarity range of the Novares liquid resins offers the possibility to be used in a broad range of different amine systems. Novares liquid resins are clearly improving the chemical resistance of water based epoxies without having a big influence on the hardness of the coating as shown below.

Chemical resistance

no impact 0 slight irritation 1

first damage 2 blisters 3

big blisters 4 destroyed 5

0 1 2 3 4 5

Sul

furic

Aci

d 10

%

20% LA 300 10% LS 500

10% L 100 20% LC 40 unmodified

10% LS 500 unmodified

10% LC 40 10% L 100

10% LS 500 unmodified

20% LA 300 20% LC 40 10% L 100 unmodified

Ace

tic A

cid

10

%E

than

ol

10%

Am

mon

ia

10%

Buchholz hardness

un- 10% 20% 10% 20% 10% 20% 10% 20%

[mm

-1]

80

70

60

50

40

30

20

10

0

without H20 [mm-1] N+10% H20 [mm-1] N+20% H20 [mm-1] N

modified LC 40 L 100 LA 300 LS 500

Modifier


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In conventional epoxy systems benzyl alcohol is widely used to reduce the viscosity of the epoxy coating.Due to its relative low boiling point benzyl alcohol has to be counted as a VOC and migrate comparable fast out of the epoxy system into the ambient air.In addition benzyl alcohol tends also to migrate into the water phase if it is used in pipe coatings, off shore- and marine paint application and in this case can contribute to blister forming and reduced corrosion protection.

To reduce the migration tendency and improve the water repellency of epoxy coatings we recommend Ruetasolv DI. Depending on the customers or application request the curing speed can be adjusted by Novares LS 500.

Benzyl alcohol replacement by ruetasolv products

BZA R DI +1% R DI +3% R DI +10% R DI +50% LS 500 LS 500 LS 500 LS 500

wei

ght

loss

[%]

3,5

3,0

2,5

2,0

1,5

1,0

0,5

0

N1 h 100°C N2 h 100°CN3 h 100°C

evaporation losses

0 5 10 15 20 25 30 35 40

visc

osity

in m

Pa*s

3000

2500

2000

1500

1000

500

0

Hardness development

3BZA3R-DI +3 % LS 5003R-DI +10 % LS 5003R-DI +50 % LS 500

time [min]


15

3000

2500

2000

1500

1000

500

0

visc

osity

in m

Pa*s

/ 25

°C

viscosity

BZA R DI R DI +1% R DI +3% R DI +10% R DI +50% LS 500 LS 500 LS 500 LS 500

Benzyl alcohol replacement by ruetasolv products

Ruetasolv modified hardeners show a similar viscosity range as the conventionally with benzyl alcohol formulated products.With an increasing amount of Novares LS 500 in Ruetasolv, the viscosity of the hardener will increase accordingly.


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As well as epoxy resins, polyurethanes also are an impor-tant reactive resin group with a wide range of applications, including civil engineering and corrosion-protection.

The following shows how Novares liquid resins and Rueta-solv products affect a PUR system comprising a polyether polyol cross-linked with an aromatic polyisocyanate based on diphenylmethane diisocyanate.

Viscosity reductionNonpolare modifiers such as Ruetasolv and Novares L 100 will reduce the viscosity, depending on the concentration

level, while a rise in the viscosity of the formulation can be observed as the polarity of the liquid resin increases.

Novares and ruetasolv in Pur-systems

viscosity

NunmodifiedN+ 18% ModifierN+ 33% Modifier

Curing time

NunmodifiedN+ 10% ModifierN+ 20% Modifier

Impact on curing timeNovares resins and Ruetasolv products dilute the reactive components of the formulation. This will increase the curing time of the systems.

Ruetasolv DI Novares L 100 Novares LA 300 / Novares LC 40 EPX-L5

[h]

8

7

6

5

4

3

2

1

0

[mPa

*s /

25°C

]

1000

900

800

700

600

500

400

300

200

100

0 Ruetasolv DI Novares L 100 Novares LA 300 / Novares LC 40 EPX-L5


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This behaviour applies specifically to the named reactants and may vary when other polyols are used.

In the following graph the polyether polyol has been replaced by a polyester polyol and the impact of the modifier on the curing process can be clearly seen.

Hardness development (polyester polyol)

unmodified 310% Novares L 100 3

10% Novares LA 300 / EPX-L5 3 1 d 3 d 7 d 14 d

Sho

re D

80

70

60

50

40

30

20

10

0

1 d 2 d 3 d 4 d 5 d 6 d 7 d

pend

ulum

har

dnes

s K

önig

[s]

140

120

100

80

60

40

20

0

Hardness development (polyether polyol)

unmodified 320% Ruetasolv DI 3

20% Novares L 100 320% Novares LA 300 / EPX-L5 3

20% Novares LC 40 3

The unmodified PUR system exhibits the lowest hardness development (König pendulum hardness). The reaction of polyol with isocyanate produces a build-up of molecular structures that increase the viscosity of the system and consequently restrict the mobility of the remaining reactants.

By introducing Novares and Ruetasolv the reaction partners remain mobile and a more uniform structure with a higher level of cross-linkage (higher hardness level) is able to develop.

Impact on hardness development


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The basic aromatic structure of Novares resins will improve the hydrophobicity both during and after the curing of the PUR system. Test specimens of modified and unmodified PUR systems were stored for 6 months in the below menti-oned media and their weight increases were determined.

The positive effect of the Novares resins can be clearly seen in the graphs below. The modified systems exhibit a much lower increase in weight than the unmodified reference system. Using Novares modifiers in PUR provides reliable, long-term surface protection.

Weight increase

NunmodifiedN+ 20% Novares L 100N+ 20% Novares LA 300 / EPX-L5

NunmodifiedN+ 20% Novares L 100N+ 20% Novares LA 300 / EPX-L5

Water repellency and resistance to aqueous media

Potassiumhydroxide Sodium carbonate Ammonia Ethanol 10% 10% hydroxid 10% 10%

[%]

6

5

4

3

2

1

0

Dest. Water Sulfuric acid 10% Acetic acid 10% Lactic acid 10%

[%]

4,5

4

3,5

3

2,5

2

1,5

1

0,5

0


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This information is based on the present level of knowledge. Due to the fact that the individual conditions are beyond our control, no warranty or product liability can be given.Please note that for the time being the EPXL liquid resins are not available in the USA, in Canada and Mexico. The solid resins (LF- types, NL types, Colle, AD) are available in Europe only.


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03/2013

RÜTGERS Novares GmbHVarziner Strasse 49 D- 47138 DuisburgTel. +49-203-429602Fax [email protected] www.novares.de


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