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Ensinger PEI

Chevron Phillips K-Resin® KR99HG Styrene-Butadiene Copolymer, Injection Molding Grade  (discontinued **)
Categories: Polymer; Thermoplastic; Styrene-Butadiene; Styrene-Butadiene Copolymer, SBC
Material Notes: Styrene-Butadiene Copolymer

Customer Benefits: This SBC is easily processed by injection molding. Molded parts provide excellent part detail on fast production cycles. Molded parts have excellent clarity, good toughness, excellent stiffness, high surface gloss, and can be blended with Polystyrene.

Applications: Garment Hangers

Processing Recommendations:
Melt Temperature: 232°C, maximum. Screw: plasticizing type injection molder more desirable than plunger type molder. Generally no need to dry resin.

Data provided by Chevron Phillips Chemical Company LP.

Ineos Styrolution acquired the K-Resin® product line from Chevron Phillips Chemical Company in 2016. This grade was previously discontinued.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.01 g/cc0.0365 lb/in³ASTM D792
Water Absorption 0.090 %0.090 %ASTM D570
Melt Flow 7.5 g/10 min
@Load 5.00 kg,
Temperature 200 °C		7.5 g/10 min
@Load 11.0 lb,
Temperature 392 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 6565ASTM D2240
Tensile Strength, Yield 26.0 MPa3770 psi2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Elongation at Break 160 %160 %2 in per min; ASTM D638; Test specimens were injection molded by ASTM D1897.
Flexural Yield Strength 34.0 MPa4930 psiTest specimens were injection molded by ASTM D1897; ASTM D790
Flexural Modulus 1.413 GPa204.9 ksiTest specimens were injection molded by ASTM D1897; ASTM D790
Izod Impact, Notched 0.410 J/cm
@Thickness 3.17 mm		0.768 ft-lb/in
@Thickness 0.125 in		ASTM D256
Impact Test 29.7 J
@Thickness 3.17 mm		21.9 ft-lb
@Thickness 0.125 in		Instrumented Total Energy; @ 150 in/sec impact rate; ASTM D3763
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 73.0 °C163 °FASTM D648
Vicat Softening Point 87.0 °C189 °FASTM D1525
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 90 %90 %ASTM D1003
 
Processing PropertiesMetricEnglishComments
Processing Temperature <= 232 °C<= 450 °F

**
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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Chevron Phillips K-Resin® BK15 Styrene-Butadiene Copolymer, Injection Molding Grade

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