Title:
POLYMER COMPOSITION, METHOD FOR PRODUCING SAME, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2024/010010
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polymer composition which exhibits excellent cold flow resistance and has a low viscosity; a method for producing same; a rubber composition containing said polymer composition; and a tire obtained using said rubber composition. In order to achieve the foregoing, the present invention contains a high molecular weight polymer having a number average molecular weight of 500,000 g/mol or more and one or more hydrogenated resins selected from the group consisting of a hydrogenated aliphatic resin and a hydrogenated cyclic resin. The content of the hydrogenated resin(s) is 20 parts by mass or more relative to 100 parts by mass of the high molecular weight polymer.
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Inventors:
KOSAI TOMOYUKI (JP)
KUMAKI KENTARO (JP)
YAGI REIKO (JP)
KUMAKI KENTARO (JP)
YAGI REIKO (JP)
Application Number:
PCT/JP2023/024829
Publication Date:
January 11, 2024
Filing Date:
July 04, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L101/00; B60C1/00; C08L9/06; C08L15/00; C08L23/26; C08L45/00
Foreign References:
| JP2017088897A | 2017-05-25 | |||
| JPH08113695A | 1996-05-07 | |||
| JP2019085455A | 2019-06-06 | |||
| JP2013256585A | 2013-12-26 | |||
| JP2014231550A | 2014-12-11 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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