Title:
ゴム組成物、ゴム架橋物およびタイヤ
Document Type and Number:
Japanese Patent JP6702312
Kind Code:
B2
Abstract:
[Problem] To provide a rubber composition that uses a cycloolefin ring-opened copolymer, that is excellent in terms of cost and production properties, and that makes it possible to improve workability and low heat generation properties. [Solution] A rubber composition according to the present invention comprises: a cycloolefin ring-opened copolymer containing a structural unit derived from cyclopentene and a structural unit derived from cyclooctadiene; and a styrene-butadiene copolymer. The content of the structural unit derived from cyclopentene is 50-99 mol% and the content of the structural unit derived from cyclooctadiene is 50-1 mol% among all of the repeating units of the cycloolefin ring-opened copolymer. The weight ratio of the cycloolefin ring-opened copolymer and the styrene-butadiene copolymer (cycloolefin ring-opened copolymer/styrene-butadiene copolymer) is 5/95 to 95/5.
Inventors:
Shingo Okuno
Naoaki Kuramoto
Takeshi Sugimura
Naoaki Kuramoto
Takeshi Sugimura
Application Number:
JP2017509868A
Publication Date:
June 03, 2020
Filing Date:
March 24, 2016
Export Citation:
Assignee:
Zeon Corporation
International Classes:
C08L9/06; B60C1/00; C08F232/06; C08K3/04; C08K3/36; C08L15/00; C08L45/00
Domestic Patent References:
| JP50038797A | ||||
| JP2014114370A | ||||
| JP51100985A |
Foreign References:
| WO2011087072A1 | ||||
| WO2016158677A1 |
Attorney, Agent or Firm:
Maeda/Suzuki International Patent Corporation