Kraton® DX421 J Linear Block Copolymer

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Kraton® DX421 J Linear Block Copolymer
Categories:	Other Engineering Material; Additive/Filler for Polymer; Polymer; Thermoplastic; Elastomer, TPE; Styrenic TPE
Material Notes:	Kraton DX421 J is a clear, linear block copolymer based on styrene and isoprene with bound styrene of 16% mass. It is supplied from Japan. Kraton DX421 J is used in formulating adhesives, sealants and coatings. It is also used as a modifier of bitumen and polymers and in formulating compounds. Kraton DX421 JSP supplied as dusted, dense pellet. Information provided by Kraton Corporation.
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Physical Properties	Original Value	Comments

Specific Gravity	0.920 g/cc	ISO 2781
Melt Flow	2.0 - 4.0 g/10 min @Load 2.16 kg, Temperature 190 °C	Typical Melt Flow at 190C/2160g is 2.8 g/10min; ISO 1133
Ash	<= 1.0 %	ISO 247

Chemical Properties	Original Value	Comments
Diblock Content	55 %

Mechanical Properties	Original Value	Comments
Hardness, Shore A	32 @Time 30.0 sec	ISO 7619
Tensile Strength	1310 psi	ISO 37
Elongation at Break	1300 %	ISO 37
300% Modulus	72.5 psi @Strain 300 %	ISO 37

Descriptive Properties
Volatile Matter (%m)	<= 1	KM 04

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PKQZ9025 / 239889

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