vinnapas solid resins – polyvinyl acetates · 2018. 5. 21. · vinnapas® homopolymer polyvinyl...

CREATING TOMORROW’S SOLUTIONS

VINNAPAS® SOLID RESINS –POLYVINYL ACETATES

VINNAPAS® SOLID RESINS –VERSATILE POLYMERS

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The brochure “VINNAPAS® SOLID RESINS –POLYVINYL ACETATES“ describes the properties, application areas and benefitsof VINNAPAS® solid resins for the follow-ing applications:– Low profile – Adhesives– Sound dampening sheets– Paints and coatings– Powder injection molding (PIM)

ContentsGeneral Product Information 4– Chemical Structure 5– VINNAPAS® Product Overview 6– Solubility Table 8– Viscosity Graphs 9– Polymer Compatibility Table 12– Application Areas 14

Low Profile 16Adhesives 18Sound Dampening Sheets 19Coatings 20Powder Injection Molding (PIM) 21VINNAPAS® General Information 22WACKER at a Glance 23

WACKER and VINNAPAS® are registered trademarks of Wacker Chemie AG

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GENERAL PRODUCT INFORMATION

In addition to the VINNAPAS® B and UWgrades, WACKER manufactures carboxy-lated VINNAPAS® copolymer C gradesbased on vinyl acetate and crotonic acid.VINNAPAS® VL grades are copolymers of vinyl acetate and vinyl laurate.

Special CharacteristicsAll VINNAPAS® grades give clear filmswith good gloss and excellent adhesion.This is particularly true of the low-visco-sity B grades, which are often preferredfor primer coatings or for combinationswith other coatings raw materials.

Varnishes, coatings and impregnationsbased on VINNAPAS® resins are resist-ant to oil and grease and show reducedwater-vapor permeability, together withgood aging properties and high abrasionresistance.

All VINNAPAS® grades are distinguishedby their excellent light stability.

WACKER markets a thermoplasticsynthetic resin polyvinyl acetate (PVAc)under the trade name VINNAPAS®.VINNAPAS® solid resins are homogeneous,colorless, odorless and tasteless resinsthat pose no known physiological risks.

We produce VINNAPAS® with varyingdegrees of polymerization and thus varying molecular weights and varyingviscosities in solution.

Low-to-medium viscosity

VINNAPAS® B grades are fusible.

They are brittle at temperatures of 20 °C.

Delivery form: Pastilles/pellets

High viscosity

VINNAPAS® UW resins are thermoplastics.

At 20 °C, they are more elastic than the

VINNAPAS® B grades.

Delivery form: Beads

VINNAPAS® C

VINNAPAS® B VINNAPAS® UW

VINNAPAS® VL


VINNAPAS® C grades are fusible and

hydrophilic.

Delivery form: Particles


VINNAPAS® VL grades are hydrophobic

and fusible. They exhibit cold flow at room

temperature.

Delivery form: 25-kg blocks

Copolymeric VINNAPAS® grades are also divided into two groups:

Homopolymeric VINNAPAS® grades are divided into two groups:

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PVAc (polyvinyl acetate) – homopolymer

Vinyl acetate / crotonic acid copolymer

Vinyl acetate / vinyl laurate copolymer

CHEMICAL STRUCTURE OF POLYVINYL ACETATES

VINNAPAS® B and UW Grades

VINNAPAS® C Grades

VINNAPAS® VL Grades

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VINNAPAS® SOLID RESINSPRODUCT OVERVIEW

Grades

B 1.5 sp

B 3 sp

B 5 sp

B 14 sp

B 17 sp

B 30 sp

B 60 sp

B 10013

UW 1 fs13 / 15

UW 4 fs13 / 15

UW 10 fs13 / 15

B 60 fg12

C 305

C 341

C 501

B 500/20 VL

B 500/40 VL

Viscosity [mPa s] 1

10 % in ethyl

acetate

1.2–1.4

1.4–1.6

1.6–2.0

1.9–2.3

2.5–3.0

3.0–3.5

3.5–5.0

5.0–6.5

8.0–11.0

23.0–30.0

35.0–55.0

3.5–5.0

2.5–3.5

3.5–3.8

7.5–9.5

8.0–12.0

8.0–12.0

Acid number 2

[mg KOH/g]

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

< 0.5

30–38

6–8

5.5–7

< 0.5

< 0.5

Residual

monomer (VAM) 3

[ppm]

< 5.0

< 5.0

< 5.0

< 5.0

< 5.0

< 5.0

< 5.0

–

–

–

–

–

–

–

–

< 5.0

< 5.0

Delivery form

Solid, colorless pastilles

odorless and tasteless















Solid, colorless beads






Powder, odorless and

tasteless

Solid, colorless to yellowish

particles


particles


particles

Colorless to yellowish blocks,


Colorless to yellowish blocks,


Volatiles

content 4

[%]

< 1.0

< 1.0

< 1.0

< 1.0

< 1.0

< 1.0

< 1.0

< 0.5

< 1.0

< 1.0

< 1.0

< 1.0

< 0.5

< 0.5

< 0.5

< 1.0

< 1.0

Density 5

[g/cm 3]

1.17 ± 0.01

1.17 ± 0.01

1.17 ± 0.01

1.17 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.18 ± 0.01

1.20 ± 0.01

1.18 ± 0.01

1.17 ± 0.01

1.18 ± 0.01

1.12 ± 0.01

1.06 ± 0.01

1) 20 °C (Höppler); DIN 53 015 2) WACKER method VPS 093) WACKER method QVCL 0024) WACKER method VPS 07

9) WACKER method, size exclusion chromatographyConditions: PS Standard; THF; 60 °C, weight average

10) Differential scanning calorimetry; Mettler DSC 821 E; heating rate 20 °C/min11) Bohlin high temperature viscosity; Bohlin CVO 120; heating rate 5 °C/min

VINNAPAS® homopolymer polyvinyl acetate (CAS No. 9003-20-7)

VINNAPAS® copolymer vinyl acetate /vinyl laurate (CAS No. 26354-30-3)

VINNAPAS® copolymer vinyl acetate /crotonic acid (CAS No. 25609-89-6)

VINNAPAS® homopolymer polyvinyl acetate powder (CAS No. 9003-20-7)

Properties

5) DIN 53 4796) DIN 53 1957) DIN EN ISO 1628-2; 1 wt. % in acetone8) By ring and ball, DIN ISO 4625; ASTM: E 28-97

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Apparent

density 6

[g/l]

550–800

550–800

550–800

550–800

550–800

550–800

550–800

550–800

700–850

700–850

700–850

400–600

550–800

550–800

550–800

–

–

K value 7

20 ± 1

23 ± 1

26 ± 1

27 ± 1

31 ± 2

33 ± 2

40 ± 2

43 ± 2

51 ± 3

63 ± 3

70 ± 3

40 ± 2

30 ± 2

34.5 ± 1

50 ± 2

50 ± 2

51 ± 4

Softening

point 8

[°C]

68–74

73–77

76–82

81–85

86–92

92–96

96–102

103–110

114–124

150–160

190–210

98–104

88–98

96–101

118–128

90–100

very soft

Molecular

weight 9

[Mw g/mol]

10–15 x 103

15–20 x 103

20–25 x 103

25–33 x 103

35–45 x 103

45–55 x 103

55–70 x 103

80–100 x 103

110–150 x 103

270–310 x 103

330–430 x 103

55–70 x 103

35–55 x 103

55–65 x 103

140–200 x 103

125–175 x 103

180–240 x 103

Glas-transition

temperature 10

Tg [C°]

33 ± 1

33 ± 1

34 ± 1

38 ± 1

39 ± 1

39 ± 1

42 ± 1

42 ± 1

43 ± 1

44 ± 1

44 ± 1

42 ± 1

47 ± 1

42 ± 1

43 ± 1

21 ± 1

0 ± 1

Melt viscosity11

at

120 °C [Pa s]

75

240

311

356

1340

2250

4080

13 300

20 900

29 100

n.m.14

4080

3880

3160

14 100

2400

545

Vinyl

acetate

[%]

100

100

100

100

100

100

100

100

100

100

100

100

> 85

> 85

> 85

≥ 80

≥ 60

12) fg = finely ground; contains 2 % Wacker HDK®

(pyrogenic silica as antiblocking agent)13) finely ground material available on request14) n.m.= not measurable15) fs = contains pyrogenic silica; product also available

without pyrogenic silica

This information is intended only as a guide. We make no warranty as to the accuracy of these data and they should not be interpreted as a specification. Specification limits areavailable on request.

SOLUBILITY OF VINNAPAS®

IN DIFFERENT SOLVENTS

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Alcohols

Methanol

Ethanol, anhydrous

Ethanol, 94 %

2-Propanol, anhydrous

1-Propanol, 90 %

n-Butanol

Cyclohexanol

Ethylene glycol

Glycerol/methyl glycol

2-Ethoxy ethanol

2-Butoxy ethanol

Soluble Insoluble Partially soluble

Esters

Methyl acetate

Ethyl acetate

n-Butyl acetate

sec-Butyl acetate

iso-Butyl acetate

Amyl acetate

Glycolic acid butyl ester

2-Methoxy ethyl acetate

2-Ethoxy ethyl acetate

Ketones

Acetone

Methyl ethyl ketone

Methyl isobutyl ketone

Diisobutyl ketone

Cyclohexanone

Isophorone

(depending on molecular weight)

Aliphatic hydrocarbons

White spirit

Mineral oils

Aromatic hydrocarbons

Ethyl benzene

Toluene

Xylene

Styrene

Chlorinated hydrocarbons

Methylene chloride

Chloroform

Carbon tetrachloride

Trichloroethylene

Perchloroethylene

Ether

Diethyl ether

Tetrahydrofuran

50 °C 100 °C 150 °C 200 °C 250 °C

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COMPLEX VISCOSITIES OF STANDARD GRADE SOLID RESINS

Viscosity [mPa s]

Temperature [°C]

1.00E+05

1.00E+04

1.00E+03

1.00E+02

1.00E+01

1.00E+00

100 % polymer; Bohlin high temperature viscometer; Bohlin CVO 120; heating rate 5 °C/min

B 1.5 sp B 5 sp B 14 sp B 17 sp B 30 sp B 60 sp B 100

UW 1 UW 4 UW 10 B 500/20 VL B 500/40 VL C 305 C 501

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VISCOSITY OF VINNAPAS®

IN STYRENE

Viscosity [mPa s]

Wt. % in ethyl acetate

20 % 25 % 30 % 35 % 40 %

100 000

10 000

1000

100

10

B 1.5 B 60 sp B 100 UW 1 UW 4 UW 10 C 341 C 501 C 305

Brookfield viscosity at 23 °C / 20 rpm

Brookfield viscosity at 23 °C / 20 rpm

B 1,0 B 1.5 sp B 5 sp B 14 sp B 17 sp B 30 sp B 60 sp B 100

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VISCOSITY OF VINNAPAS® B GRADES IN ETHYL ACETATE

10 % 15 % 20 % 25 % 30 % 35 % 40 % 45 % 50% 55 % 60 %

Viscosity [mPa s]

Wt. % in ethyl acetate

3.0

2.5

2.0

1.5

1.0

0.5

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COMPATIBILITY OF VINNAPAS®

WITH OTHER BINDERS

Compatible Incompatible Limited compatibility

PlasticizersPlasticizers are added to VINNAPAS®

resins to increase the flexibility and tackto lower the heat-sealing temperature andincrease water resistance. Products (coat-ings, adhesives) based on VINNAPAS®

resins usually require only small amountsof plasticzer to increase their flexibility.Higher levels of plasticizer (20 % or more)considerably lower the softening point,reducing the heat-resistance of the adhesives and increasing the surfacetackiness of adhesives and coatingsbased on VINNAPAS®.

The most effective plasticizers for VINNAPAS® are:– Phthalates

(dimethyl-, diethyl- dibutyl-and butylbenzyl phthalate)

– Phosphates(tributyl-, tricresyl-, triphenyl-and tributoxyethyl phosphate)

– Triacetine (glycerol triacetate)

– Adipates

Synthetic polymers

Urea-formaldehyde

Polystyrene

Polyvinyl butyral

Polyvinyl chloride

Vinyl chloride – vinyl acetate copolymers

Poly(n-butyl)methacrylate

Cellulose acetate

Nitrocellulose (soluble in alcohol)

Nitrocellulose (soluble in ester)

Polyvinyl methyl ether

Chlorinated paraffins

Chlorinated rubber

Polyisobutylene

Resins and natural products

Alkyd resins

Resins and resin derivatives

Terpene resins

Cumarene resins /cumarene-indene resins

Ethyl acetate (20 % solution) mixture 50 : 50

B 1.5 sp

B 100

UW 1

UW 10

C 341

C 501

B 500/20 VL

B 500/40 VL

Acetone (20 % solution) mixture 50 : 50

B 1.5 sp

B 100

UW 1

UW 10

C 341

C 501

B 500/20 VL

B 500/40 VL

Ethyl acetate /ethanol (20 % solution) mixture 50 : 50

B 1.5 sp

B 100

UW 1

UW 10

C 341

C 501

B 500/20 VL

B 500/40 VL

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COMPATIBILITY OF SOLUTIONS BASEDON VARIOUS VINNAPAS® GRADES

Determination after one week B 1.5 sp B 100 UW 1 UW 10 C 341 C 501 B 500/20 VL B 500/40 VL

Compatible Incompatible

Grades

B 1.5 sp

B 3 sp

B 5 sp

B 14 sp

B 17 sp

B 30 sp

B 60 sp

B 100

UW 1 fs 1)

UW 4 fs 1)

UW 10 fs 1)

B 60 fg 2)

C 305

C 341

C 501

B 500/20 VL

B 500/40 VL

B 100/20 VLE 3)

Recommended Suitable

1) fs = fumed silica (WACKER HDK®), product also available without pyrogenic silica 2) fg = finely ground3) 50 % solution in ethyl acetate

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VINNAPAS® SOLID RESINSAPPLICATION AREAS

Parquet

adhesiveGeneral-purpose

adhesive

Additive

for hotmelt

adhesives

Low-profile

additiveWood binders

VINNAPAS® copolymer vinyl acetate /vinyl laurate (CAS No. 26354-30-3)

VINNAPAS® copolymer vinyl acetate /crotonic acid copolymer (CAS No. 25609-89-6)

VINNAPAS® homopolymer polyvinyl acetate powder (CAS No. 9003-20-7)

VINNAPAS® homopolymer polyvinyl acetate (CAS No. 9003-20-7)

Applications

VINNAPAS® copolymer vinyl acetate /vinyl laurate; ethyl acetate solution (CAS No. 26354-30-3)

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Powder

injection

molding (PIM)

High-tech

ceramics

Packaging

coatings

Sound-damping

sheets Nonwovens

Powder

laminating

agents Food

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LOW PROFILE

WACKER POLYMERS VINNAPAS® solidresins prevent shrinking during the curingof unsaturated polyesters. This is one ofthe most important criteria in the auto-motive industry.

VINNAPAS® solid resins are consideredto be low-profile additives because theyprovide excellent dimensional stability.

The acceptable volume-shrinkage of theunsaturated polyester is 0.05 %, expres-sed in terms of the original dimensionsof the unit before curing. In the closed-mold process, an excellent property profile is essential. This includes surfacesmoothness, high gloss, high dimensio-nal stability and reduced shrinkage.Low-profile additives (LPA) are used inUP resin-based formulations to achievethe desired product quality. VINNAPAS®

C 501, C 341 (carboxylated polyvinylacetate resins), as well as VINNAPAS®

UW 1 and B 100 (non-carboxylatedpolyvinyl acetate resins) are used as

low-profile additives. Without the use ofVINNAPAS® as a low-profile additive,warping of the unit being constructedwould occur, as well as poor surfacequality. These are critical performancerequirements for the automotive andtransportation industries. Low-profileadditives yield a high-quality surface calleda Class A surface. The special effect thatVINNAPAS® solid resins contribute stemsfrom extraordinary solubility characteris-tics during curing of unsaturated poly-esters. VINNAPAS® solid resins becomegradually insoluble during the curing pro-cess. They expand and hinder the naturalshrinkage which takes place during curingof unsaturated polyester. These importantsolubility characteristics of VINNAPAS®

solid resins can be adjusted via the follow-ing parameters:– Molecular weight– Degree of functionality– Type of functionality– Polymer structure

WACKER POLYMERS strives for continu-ous improvement in this market segmentthrough the development of new, custom-made products. In close collaborationwith customers, new products are beingdeveloped and existing VINNAPAS® pro-ducts enhanced. The emphasis of ourresearch and development is on supply-ing our customers with VINNAPAS® solidresins that display the versatility neededfor use in a wide spectrum of applica-tions.

Guide formulations are available onrequest.

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Components

Unsaturated Polyester Resin

Orthophthalic polyester resin (65 % in styrene)

Additives

VINNAPAS® PVAc (40 % in styrene)

tert-Butyl perbenzoate

Peroxy ester

Pigment dispersion

Zinc stearate

Filler

Calcium carbonate 3 µm

Glass fibers

50 mm chopped fiberglass, wt. %

Parts by wt.

65.0

35.0

1.0

0.2

10.0

2.0

180.0

27–29

Typical SMC Formulation

SMC paste

SMC production

FiberglassCutter

Polyamide film

Compacting rolls

Polyethylene film

Finished (SMC)

SMC paste

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VINNAPAS® solid resins are used in theadhesive industry as binders for solvent-based adhesives due to their excellentadhesion to many substrates, such aspaper, carton board, wood, textile,leather, glass, metal and many plastics. The VINNAPAS® B grades are suitable for adhesives which do not need to meetspecific heat-resistance requirements.Increased heat resistance can be achie-ved by a combination of VINNAPAS® Bgrades and VINNAPAS® UW gradestogether with a filler, such as calcium car-bonate. For manufacturing an adhesivecontaining VINNAPAS®, we recommenddissolving the VINNAPAS® resin or resincombination in a suitable solvent mixtureunder sufficient agitation followed by the addition of fillers, pigments, etc.Adhesives formulated with VINNAPAS®

solid resins can be plasticized with dibutyl phthalate in order to obtain ahighly flexible bond or to improve thelow-temperature flexibility, if required. VINNAPAS®-based adhesives can beapplied by common methods, such as brushing, roll coating, knife coating or spraying. Major application areas are parquet floor adhesives, whereWACKER holds a market-leading posi-tion, general-purpose adhesives, acrylicadhesives and heat-sealing adhesives.For sprayable adhesives based on VINNAPAS® solid resins, a low molecularweight VINNAPAS® B grade should be used.


ADHESIVES

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no toxic emissions and no fogging compared to asphalt-containing sheetsdue to their high molecular weight andchemical composition. Additional bene-fits exhibited by VINNAPAS®-basedsound-damping sheets are excellentpaintability, ease of handling, and redu-ced overall weight. A typical formulationcontains, in addition to the VINNAPAS®

UW resin, plasticizer, filler and carbonblack. A broad range of fillers can beused; among the most common are calcium carbonate and mica. The addi-tion of plasticizer allows the formulatorthe versatility to fine-tune the sound-damping sheets to the required flexibilityand effective temperature range.

SOUND-DAMPING SHEETS

A major problem today in the automotiveindustry is the excessive noise generatedby the vibration of metal parts in thevehicle. The use of an effective sounddampening material contributes to thereduction or elimination of the excessivenoise. VINNAPAS® UW resins can beused as the principal component foreffective vibration-dampening materialsand sound dampening sheets. Theseresins lead to excellent sound propertiesover a broad temperature range. Sheetsformulated with VINNAPAS® UW resinsresult in more effective sound-damping,

VINNAPAS® resins are widely compatiblewith a large spectrum of plasticizers.The most common plasticizers used inthis application are phthalates, phos-phates and glycol derivatives. The rawmaterials are mixed in an extruder andfurther processed into thin sheets. Theadhesion of these sheets to the metalcan be increased by applying commonpressure-sensitive adhesives in the formof an emulsion.


Cabin side

Cabin top

Cabin front Side damping

Tunnel damping

Floor damping

Luggage compartment

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COATINGS

Due to their outstanding clarity, VINNAPAS®

solid resins are suitable for many applica-tions where natural resins are traditionallyused.

In particular, the low-to-medium viscositygrades (B 5 sp – B 100) may be used asthe synthetic resin component in cellulosenitrate lacquers (maple wood varnishes,lacquers for posters and labels). Viscosityand hardness of the lacquer can be widelyvaried depending on the VINNAPAS® gradeselected. In regards to primers for porousmaterials, such as wood, plaster and ma-sonry, the low-viscosity VINNAPAS® grades(e.g. B 1.5 sp, B 5 sp) are highly suitable in the production of lacquers with high filleruptake and good spreading power. Sincethe resins are absolutely colorless, the colorof the primed surface remains unchanged.VINNAPAS® solid resins also ensure goodadhesion and recoatability. In these appli-cations, the incorporation of plasticizersmay also be useful to improve the proper-ties of the coating.

VINNAPAS® C grades contain carboxylfunctionality and are recommended forpriming metal surfaces, e.g. aluminum foil, due to their excellent adhesion. VINNAPAS® C 305 is soluble in alkalinewater. However, the dried film exhibitsvery good water resistance. Typical appli-cations where these properties are usefulare coated aluminum labels for drinkingbottles where solubility in alkaline water is needed for cleaning purposes.

Also, VINNAPAS® C grades have out-standing adhesion to paper and boardand are recommended for use as primersfor the metallizing of these substrates.They may be used in combination withnon-functional VINNAPAS® resins inorder to adjust adhesion and mechani-cal properties to the requirements of the application. Likewise, non-functionalVINNAPAS® grades in the higher visco-sity range (UW grades) have goodmetallizing properties.

VINNAPAS® VL grades have exceptionalflexibility and have good adhesion onvarious plastic substrates, aluminum and glass. These properties make themextremely well suited for the productionof coatings or screen inks with a so-called“soft touch.” VINNAPAS® VL grades haveexcellent compatibility with a wide rangeof different polymers, and they work as a kind of migration-free polymericplasticizer in such systems. Their mainapplication field is nitrocellulose-basedsystems.

In combination with VINNAPAS® C grades,VINNAPAS® VL are used for the pro-duction of highly grease resistant papercoatings that are used in applications, suchas butter packaging. Being colorlessand non-toxic, VINNAPAS® resins are

useful in overprint varnishes for paper andcardboard as well as for impregnationswith reduced water vapor permeability.

Solutions based on VINNAPAS® resinsmay be used for textile sizing and forfinishing, impregnating and stiffeningcardboard, felt and synthetic fiber mats.The finishing effect can be modified viathe resin concentration, the VINNAPAS®

resin grade and the plasticizer content.The preferred VINNAPAS® resins gradesare of medium (VINNAPAS® B 100) andhigh (VINNAPAS® UW grades) viscosity.

VINNAPAS® has a high binding power for pigments and fillers. For this reason,a high pigment loading may be achievedwhen products based on VINNAPAS®

are used. Being of neutral pH, the VINNAPAS® B and UW grades toleratenot only neutral pigments and fillers, but also slightly alkaline pigments and fillers in the formulation.

Low and medium-viscosity VINNAPAS®

solid resin grades have proved suitablefor the production of concrete sealingfluids and barrier coatings on gypsumsheets. In addition to reduced dustingdue to improved abrasion resistance,these coatings offer good protectionagainst the penetration of oil, grease,humidity, etc. These lacquers may beused, for example, in indoor applications,such as cellar floors, stairs, etc. Forexternal applications, we recommendour VINNOL® copolymers.


VINNOL® is a registered trademark of Wacker Polymer Systems GmbH & Co. KG.

Grease-Repellent Paper Coating

The Powder Injection Molding (PIM)industry is aware of the variations in thecomposition of premixes due to the vir-tue of particle segregation and dusting.These effects are quite evident in com-positions with high alloy content.

However, they appear to be present in all mixtures, independent of alloy con-tent. Visibly identifiable indications resultfrequently from dusting. Visible indica-tions are less apparent in respect ofsegregation due to particle migration, but are quite well known.

Variations in composition due to segre-gation and dusting also result in mechan-

ical and physical property variations in blends, as well as in parts that aremanufactured from these blends. It is difficult to quantify the effects causedby segregation and dusting. However,there is a large amount of evidence to suggest that these phenomena arecausing both technical and economicproblems for the PIM industry. Techni-cally, these phenomena limit the abilityto blend metal powders without an additional binder.

Segregation and dusting may also causedimensional variations that lead to partrejections, loss in productivity and anoverall negative economic impact.

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POWDER INJECTION MOLDING (PIM)

100

80

60

40

20

0

0 10 20 30 40 50 60 70 80 90 min

100 200 300 400 500 600 700 800 900 1000

[wt. %]

VINNAPAS® UW 4 Thermogravimetric Analysis (TGA) under Air

Temperature Time [°C min]

Residual content27.9 %

Residual content 14.6 %

Residual content 0.4 %

There are a number of manufacturingoptions available which can eliminate or reduce the effects of segregation and dusting. The three most significantare: atomization of prealloys, diffusionbonding by annealing, and binder treatment of premixes.

The VINNAPAS® grades B 100, UW 1 and UW 4 are highly recommended foruse as a binder in these formulations. Our products combine the following properties:– Outstanding binding – Excellent thermoplastic

characteristics – Superior burn-out properties

ºC

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Dangerous Chemicals RegulationsAll VINNAPAS® resins (B, UW, and Cgrades) are not classified as dangerouschemicals under the German – Gefahr-stoffverordnung (GefStoffV, 11th issue1997) – and therefore do not have to be labeled as such.

A certificate of origin, details on labelingand safety data sheets are availableupon request.

Storage of VINNAPAS® Polyvinyl AcetateVINNAPAS® resins exhibit excellent stability when stored under cool and dry conditions. However, being ther-mo-plastic materials, it is strongly sug-gested that the lower molecular weightVINNAPAS® B grades particularly bestored below 20 ºC to prevent caking.All VINNAPAS® resins will retain theirfree-flowing characteristics when stored in a cool (less than 20 ºC) and dry place.

Shelf lifePlease refer to the technical data sheet.

PackagingStandard packaging for VINNAPAS® B,UW and C grades:PE-bags, 25 kg net weight. Other typesof packaging available upon request.

Further information regarding individualproducts (technical data sheets, materialsafety data sheets) is available at:

Tel. +49 8677 83-7979Fax +49 8677 [email protected]

VINNAPAS® GENERAL INFORMATION

WACKERAT A GLANCE

WACKER SILICONESis a leading supplier of complete silicone-based solutions that comprise products,services and conceptual approaches. Asa provider of solutions, the business divi-sion helps customers press ahead withinnovations, exploit global markets fully,and optimize business processes toreduce overall costs and boost productiv-ity. Silicones are the basis for productsoffering highly diverse properties for vir-tually unlimited fields of application, rang-ing from the automotive, construction,chemical, electrical engineering and elec-tronics industries, through pulp andpaper, cosmetics, consumer care andtextiles, to mechanical engineering andmetal processing.

WACKER POLYMERSis the global leader for high-quality bind-ers and polymer additives. This businessdivision’s activities encompass construc-tion chemicals and functional polymersfor lacquers, surface coatings and otherindustrial applications, as well as basicchemicals, i. e. acetyls. Products such as dispersible polymer powders, disper-sions, solid resins, powder binders andsurface coating resins from WACKERPOLYMERS are used in the construction,automotive, paper and adhesivesindustries, as well as by manufacturers of printing inks and industrial coatings.

WACKER FINE CHEMICALSis an expert in organic synthesis, silanechemistry and biotechnology, providingtailored solutions for its customers in the life sciences and consumer careindustries. The range of innovativeproducts includes complex organicintermediates, organosilanes, chiralproducts, cyclodextrins and amino acids.

With its comprehensive expertise,WACKER FINE CHEMICALS is a preferredpartner for highly challenging custom-manufacturing projects in the fields ofchemistry and biotechnology.

WACKER POLYSILICONhas been producing hyperpure silicon forthe semiconductor and photovoltaicsindustries for over 50 years. As one of thelargest global manufacturers of polycrys-talline silicon, WACKER POLYSILICONsupplies leading wafer and solar-cellmanufacturers.

Siltronicis one of the world’s leading producers ofhyperpure silicon wafers, supplying manymajor chip manufacturers. Siltronic devel-ops and produces wafers up to 300 mm in diameter at facilities in Europe, theUSA, Asia and Japan. Silicon wafers formthe basis of state-of-the-art micro andnanoelectronics used, for example, incomputers, telecommunications, motorvehicles, medical technology, consumerelectronics and control systems.

WACKERis a technological leader in the chemi-cal and electrochemical industries anda worldwide innovation partner to cus-tomers in many key global sectors.With around 14,400 employees,WACKER generated sales of EUR 2.76billion in 2005. Germany accounted for 21% of sales, Europe (excludingGermany) for 31%, the Americas for22 % and Asia-Pacific, including the rest of the world, for 26 %. Headquartered in Munich, Germany,WACKER has some 20 productionsites worldwide and a global networkof over 100 sales offices.With R&D spending at 5.3 % of sales in 2005, WACKER is among the world’smost research-intensive chemicalcompanies.

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Wacker Chemie AGHanns-Seidel-Platz 481737 München, GermanyTel. +49 89 6279-0Fax +49 89 [email protected]

www.wacker.com/vinnapas

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