Westlake EMAC® SP2242 Specialty Copolymer

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Westlake EMAC® SP2242 Specialty Copolymer (discontinued **)
Categories:	Polymer; Thermoplastic; Ethylene Methyl Acrylate; Ethylene-Methyl Acrylate Copolymer, Compounding Grade
Material Notes:	EMAC resins adhere to and are compatible with a wide range of materials including paper, polyolefins, oriented polyolefins, polyesters, ionomers, PVdC, unplasticized PVC and other polar polymers. For use as heat seal layer, adhesive layer, or modifier for cost/performance enhancement. They are soft, pliable and tough at ambient and freezing temperatures and exhibit excellent ESCR. These polymers exhibit high solids fillability and compatibility with a wide range of polymers. This facilitates their uses as bases for all-purpose concentrates for addition to a wide spectrum of polymers. They process like LDPE. Applications/Uses Films Eastman Chemical Company sold its polyethylene business to Westlake Chemical Corporation in Dec. 2006. This grade no longer appears in the Westlake product line.
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Physical Properties	Metric	English	Comments

Base Resin Density	0.939 g/cc	0.0339 lb/in³	ASTM D1505
Methyl Acrylate Content	17.5 %	17.5 %
Thickness	38.1 microns	1.50 mil	ASTM D374
Base Resin Melt Index	3.5 g/10 min	3.5 g/10 min	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	35	35	ASTM D2240
Tensile Strength at Break	11.0 MPa	1600 psi	ASTM D638
Film Elongation at Break, MD	365 %	365 %	ASTM D882
Film Elongation at Break, TD	695 %	695 %	ASTM D882
Elongation at Break	770 %	770 %	500mm/min; ASTM D638
Elmendorf Tear Strength, MD	1.15 g/micron	29.2 g/mil	ASTM D1922
Elmendorf Tear Strength, TD	4.99 g/micron	127 g/mil	ASTM D1922
Dart Drop	6.04 g/micron	153 g/mil	ASTM D1709A
Film Tensile Strength at Break, MD	19.0 MPa	2760 psi	ASTM D882
Film Tensile Strength at Break, TD	14.0 MPa	2030 psi	ASTM D882
1% Secant Modulus, MD	56.0 MPa	8120 psi	ASTM D882
1% Secant Modulus, TD	56.0 MPa	8120 psi	ASTM D882
Heat Seal Strength Initiation Temperature	70.0 °C	158 °F	Eastman

Thermal Properties	Metric	English	Comments
Melting Point	84.0 °C	183 °F	DSC
Brittleness Temperature	<= -73.0 °C	<= -99.4 °F	ASTM D746

Optical Properties	Metric	English	Comments
Haze	49 %	49 %	ASTM D1003
Gloss	15 %	15 %	ASTM D2457

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PE9071 / 35127

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