BLOCK COPOLYMER AND METHOD FOR PRODUCING BLOCK COPOLYMER

To provide a block copolymer that comprises an aromatic vinyl compound polymer and a chloroprene polymer, has a number average molecular weight of 100,000 or more, is preferred for a rubber composition and an adhesive composition, and is suitable for industrial production. A block copolymer comprise...

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Hauptverfasser: NISHINO Wataru, HAGIWARA Shogo, ISHIGAKI Yuhei, AIZAWA Takashi, YAMAGISHI Uichiro
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:To provide a block copolymer that comprises an aromatic vinyl compound polymer and a chloroprene polymer, has a number average molecular weight of 100,000 or more, is preferred for a rubber composition and an adhesive composition, and is suitable for industrial production. A block copolymer comprises at least one aromatic vinyl compound polymer block and at least one chloroprene polymer block, has a functional group with a structure represented by Chemical Formula (1) or (2), and has a number average molecular weight of 100,000 or more. The chloroprene polymer block has a number average molecular weight of 80,000 or more in total.(In Chemical Formula (1), R1is hydrogen, chlorine, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclyl group)