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Title:
MODIFIED LIQUID DIENE POLYMER AND RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/172185
Kind Code:
A1
Abstract:
Provided are: a modified liquid diene polymer which enables the achievement of a crosslinked product of a rubber composition, said crosslinked product having excellent wet grip performance, wear resistance and the like, and in said crosslinked product a filler being dispersed in an ideal state for the improvement of the physical properties; a rubber composition which contains this modified liquid diene polymer; the above-described crosslinked product; and a tire which partially uses this composition or this crosslinked product. A modified liquid diene polymer which is obtained by modifying a liquid diene block copolymer by a specific silane compound, said liquid diene block copolymer containing a polymer block (b'1) or (b"2) that contains a butadiene unit, and a polymer block (b'2) or (b"2). This modified liquid diene polymer has a functional group that is derived from the silane compound; and this modified liquid diene polymer satisfies specific conditions.

Inventors:
OHTA Satomi (36, Towada, Kamisu-sh, Ibaraki 97, 〒3140197, JP)
KANBARA Hiroshi (36, Towada, Kamisu-sh, Ibaraki 97, 〒3140197, JP)
KODA Daisuke (36, Towada, Kamisu-sh, Ibaraki 97, 〒3140197, JP)
Application Number:
JP2019/008405
Publication Date:
September 12, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
KURARAY CO., LTD. (1621, Sakazu Kurashiki-sh, Okayama 01, 〒7100801, JP)
International Classes:
C08C19/25; C08F297/02; C08K3/013; C08K3/04; C08K3/36; C08K5/5419; C08L9/06; C08L15/00; C08L21/00
Domestic Patent References:
WO2013081053A12013-06-06
Foreign References:
JP2014105294A2014-06-09
JP2014162809A2014-09-08
JP2015113425A2015-06-22
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (Gotanda Yamazaki Bldg. 6F, 13-6 Nishigotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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