Title:
COPOLYMER, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/060238
Kind Code:
A1
Abstract:
Provided are: a copolymer excelling in the effect of reducing the rolling resistance of a tire; a rubber composition containing said copolymer; and a tire. The copolymer of the present invention comprises, in each molecule, a polymer A containing at least butadiene as a constituent unit, and a polymer B of a monomer b containing N-vinyl-2-pyrrolidone. The polymer A preferably contains polybutadiene or a modified polybutadiene. Given that the copolymer of the present invention excels in the effect of reducing the rolling resistance of a tire, said copolymer can be suitably used as a rubber additive, for example.
Inventors:
HAMAGUCHI ITSUKO (JP)
YAMADA TAKUYA (JP)
NAKAGAWA NAOKI (JP)
YAMADA TAKUYA (JP)
NAKAGAWA NAOKI (JP)
Application Number:
PCT/JP2020/035685
Publication Date:
April 01, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
DKS CO LTD (JP)
International Classes:
B60C1/00; C08F279/02; C08L9/00; C08L51/04
Foreign References:
CN103509159A | 2014-01-15 | |||
JPH08505166A | 1996-06-04 | |||
CN102295731A | 2011-12-28 | |||
JP2009529091A | 2009-08-13 | |||
JP2009132383A | 2009-06-18 |
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