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Title:
RUBBER COMPOSITION, INNER LINER RUBBER, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2019/111599
Kind Code:
A1
Abstract:
A rubber composition according to the present invention contains a rubber component, a reinforcing filler, and a hydrogenated resin, wherein: the rubber component contains 80 mass% or more of a modified or unmodified butyl rubber; the glass transition temperature of the hydrogenated resin is 50ºC or higher and lower than 65ºC; and the hydrogenated resin content is 1 part by mass or more and less than 20 parts by mass with respect to 100 parts by mass of the rubber component. With said rubber composition, it is possible to manufacture a vulcanized rubber having the property that the breaking elongation at -40ºC is 330% or more and having excellent gas barrier properties and low-temperature durability.

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Inventors:
URATA, Tomohiro (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
SUZUKI, Shoko (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
Application Number:
JP2018/040433
Publication Date:
June 13, 2019
Filing Date:
October 31, 2018
Export Citation:
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Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
C08L23/22; B60C1/00; B60C5/14; C08K3/013; C08K3/04; C08L45/00
Domestic Patent References:
WO2017018386A12017-02-02
WO2013038787A12013-03-21
Foreign References:
JP2017533296A2017-11-09
JP2017048295A2017-03-09
JP2016020475A2016-02-04
JP2015501359A2015-01-15
JPS61243843A1986-10-30
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Toranomon ES Bldg. 7F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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