Method for producing thermoplastic elastomer composition

Details Method for producing thermoplastic elastomer composition Method for producing thermoplastic elastomer composition

C - Chemistry, Metallurgy

08

L

C08L 21/00 (2006.01) C08L 23/00 (2006.01) C08L 23/16 (2006.01) C08L 45/00 (2006.01)

Patent

CA 2082372

ABSTRACT METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION Provided is a method for producing a thermoplastic elastomer composition excellent in flexibility, mechanical properties and extrusion moldability which comprises directly feeding a particulate olefinic copolymer rubber (A) having a particle shape index .alpha. defined below of 0.1-0.9 and an olefinic plastic (B) to a continuous kneading extruder to carry out melt kneading and then, feeding an organic peroxide to downstream side of said extruder to carry out dynamic crosslinking: .alpha.=DA/DB wherein DA denotes bulk density of the particulate olefinic copolymer rubber (A) and DB denotes bulk density of the olefinic plastic (B).

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