Title:
POLYMER COMPOSITION, PRODUCTION METHOD THEREFOR, RUBBER COMPOSITION, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2024/010009
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a polymer composition having excellent cold-flow resistance, a method for producing the polymer composition, a rubber composition including the polymer composition, and a tire obtained using the rubber composition. The polymer composition comprises a diene-based polymer having a number-average molecular weight of 500,000 g/mol or higher and a resin having a value of %H Ar of 20% or greater and a softening point of 110°C or higher, the content of the resin being 20 parts by mass or higher per 100 parts by mass of the diene-based polymer.
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Inventors:
KOSAI TOMOYUKI (JP)
KUMAKI KENTARO (JP)
YAGI REIKO (JP)
KUMAKI KENTARO (JP)
YAGI REIKO (JP)
Application Number:
PCT/JP2023/024828
Publication Date:
January 11, 2024
Filing Date:
July 04, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L15/00; B60C1/00; C08L9/06; C08L25/02; C08L65/00
Domestic Patent References:
WO2012165038A1 | 2012-12-06 |
Foreign References:
JP2017088897A | 2017-05-25 | |||
JP2016089118A | 2016-05-23 | |||
JP2013256585A | 2013-12-26 | |||
JP2019123760A | 2019-07-25 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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