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Patent Searching and Data


Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/039602
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rubber composition which, when used in a tire, exhibits good fuel economy and can improve abrasion resistance and cutting resistance. In order to achieve the foregoing, the present invention is characterized by containing a rubber component comprising natural rubber and/or synthetic isoprene rubber and syndiotactic 1,2-polybutadiene. The syndiotactic 1,2-polybutadiene has a crystal amount of 7-40 J/g and a number average molecular weight of 6.5×104 or more.

Inventors:
KOTANI KYOHEI (JP)
ASAKURA TAKAFUMI (JP)
SHODA YASUHIRO (JP)
Application Number:
PCT/JP2020/031524
Publication Date:
March 04, 2021
Filing Date:
August 20, 2020
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; B62D55/24; C08K3/013; C08L7/00; C08L9/00; F16F1/36
Foreign References:
JP2016216626A2016-12-22
JP2014084410A2014-05-12
JP2018095703A2018-06-21
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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