MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION, RUBBER PRODUCT AND TIRE

WIPO Patent Application WO/2017/065298

A1

One purpose of the present invention is to provide a multi-component copolymer which is used for the purpose of producing a rubber composition or a rubber product that has high wear resistance and wet performance. Another purpose of the present invention is to provide: a rubber composition containing the multi-component copolymer; a crosslinked rubber composition obtained by crosslinking the rubber composition; and a tire and a rubber product, each of which uses the rubber composition or the crosslinked rubber composition. A multi-component copolymer according to the present invention contains a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, and is characterized in that: the content of the aromatic vinyl unit is 5 mol% or more but less than 50 mol% of the whole multi-component copolymer; and the content of the non-conjugated olefin unit is more than 0 mol% but 50 mol% or less of the whole multi-component copolymer.

KOTANI KYOHEI (JP)
TAKANO SHIGENAGA (JP)
OISHI SHIGEKI (JP)
KAITA SHOJIRO (JP)

PCT/JP2016/080613

April 20, 2017

October 14, 2016

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BRIDGESTONE CORP (JP)

C08F236/10; B60C1/00; C08F210/00; C08F212/06; C08L9/00; C08L23/00; C08L25/02; C08L47/00

WO2006004068A1	2006-01-12
WO2007129670A1	2007-11-15
WO2012014455A1	2012-02-02
WO2015190072A1	2015-12-17
WO2015190073A1	2015-12-17

JP2005220313A	2005-08-18
JPH08244179A	1996-09-24
JPH09291121A	1997-11-11
JPH1135744A	1999-02-09
JPH1135810A	1999-02-09
JPH1180269A	1999-03-26

See also references of EP 3363831A4

OHTANI, Tamotsu (JP)

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