Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RUBBER COMPOSITION FOR TIRE
Document Type and Number:
WIPO Patent Application WO/2023/058674
Kind Code:
A1
Abstract:
The present invention provides a rubber composition for tires with which both wet gripping performance and wear resistance are attained. The present invention provides a mixture obtained by blending 0.5 to 50 parts by mass of a rosin resin with 100 parts by mass of a diene rubber, the diene rubber and the rosin resin being blended at a mass ratio of 1:1, wherein the mixture is characterized in that the difference Tga–Tgm is 5–50°C, where Tga is a theoretical value Tga for the glass transition temperature of the mixture calculated from the glass transition temperatures of the diene rubber and the rosin resin, and Tgm is the measured value of the glass transition temperature of the mixture.

Inventors:
NAKAJIMA RIE (JP)
Application Number:
PCT/JP2022/037209
Publication Date:
April 13, 2023
Filing Date:
October 05, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L9/00; B60C1/00; C08F293/00; C08F297/04; C08K3/36; C08L7/00; C08L53/02; C08L93/04
Domestic Patent References:
WO2019031227A12019-02-14
WO2019017067A12019-01-24
WO2019031185A12019-02-14
WO2018203533A12018-11-08
WO2019198398A12019-10-17
Foreign References:
JP2016528371A2016-09-15
JP2019077849A2019-05-23
JPH10287768A1998-10-27
JP2016047888A2016-04-07
JP2016089118A2016-05-23
JP2019199524A2019-11-21
JP2021075641A2021-05-20
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
Download PDF: