Kraton® D4270 J (O/E SBS) Branched Block Copolymer

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Kraton® D4270 J (O/E SBS) Branched Block Copolymer
Categories:	Polymer; Thermoplastic; Styrene-Butadiene; Styrene/Butadiene/Styrene (SBS)
Material Notes:	Description: Kraton D4270 J is an oil-extended branched block copolymer based on styrene and butadiene, with bound styrene in the neat polymer of 32% mass. It is supplied from Japan in the physical forms identified in the grade nomenclature: D4270 JSP - supplied as dusted pellets D4270 JS - supplied as dusted crumb Region: Japan Uses: Kraton D4270 J is used for formulating compounds for footwear and general purpose applications and as a modifier of bitumen. Applications: Bitumen Modification and Compounding and Personal Hygiene Information provided by Kraton®
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Physical Properties	Metric	English	Comments

Specific Gravity	0.940 g/cc	0.940 g/cc
Volatiles	<= 1.0 % @Temperature 110 °C, Time 7200 sec	<= 1.0 % @Temperature 230 °F, Time 2.00 hour
Melt Flow	10 - 24 g/10 min @Load 5.00 kg, Temperature 200 °C	10 - 24 g/10 min @Load 11.0 lb, Temperature 392 °F	ISO 1133
Ash	<= 1.0 %	<= 1.0 %	ISO 247

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	46 @Time 30.0 sec	46 @Time 0.00833 hour	ISO 7619
Tensile Strength	12.0 MPa	1740 psi	ISO 37
Elongation at Break	1100 %	1100 %	ISO 37
300% Modulus	1.90 MPa @Strain 300 %	276 psi @Strain 300 %	ISO 37

Descriptive Properties
Content	Bound Styrene		32 percent

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PKRA9848 / 132747

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