Title:
SEALING MEMBER FOR FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2022/209027
Kind Code:
A1
Abstract:
This sealing member 4a used in a fuel cell sealing body consists of a crosslinked body of a rubber composition containing components (A) and (B), and exhibits a rebound resilience of 40-70%. As a result, it is possible to provide a sealing member for a fuel cell having excellent pressing crack resistance and sag resistance across a broad range of temperatures from low temperatures to high temperatures. (A) At least one rubber component selected from the group consisting of ethylene-propylene rubber, ethylene-propylene-diene rubber, and ethylene-butene-diene rubber. (B) Carbon black for which the value of the BET specific surface area (m2/g)×DBP oil absorption quantity (cm3/100g) is from 1,500-15,000.
Inventors:
TANIGUCHI SHOTA (JP)
YAMAMOTO KENJI (JP)
YAMAMOTO KENJI (JP)
Application Number:
PCT/JP2021/045363
Publication Date:
October 06, 2022
Filing Date:
December 09, 2021
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
H01M8/0284; C09K3/10; F16J15/10; H01M8/0282; H01M8/10
Foreign References:
| JP2017188417A | 2017-10-12 | |||
| JP2015191683A | 2015-11-02 | |||
| JP2015206002A | 2015-11-19 | |||
| JP2016176041A | 2016-10-06 | |||
| JP2001323108A | 2001-11-20 | |||
| JP2020158718A | 2020-10-01 | |||
| JP2021001250A | 2021-01-07 |
Attorney, Agent or Firm:
SAITOH Yukihiko et al. (JP)
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