Title:
EPDM COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/063052
Kind Code:
A1
Abstract:
Provided is a EPDM composition which is a rubber composition in which carbon black, a plasticizer, and a crosslinking agent are mixed in an ethylene-propylene-diene ternary copolymer rubber, wherein the plasticizer is a polyol ester which is a reaction product of a neopentyl-type polyol and a monocarboxylic acid, and the plasticizer weight in the composition is 5-22 wt%. This EPDM composition provides a crosslinked product that, in terms of change in harness after a heat-aging test, is equivalent to a case where the same amount of an α-olefin oligomer is mixed, and is greatly improved over a case where an aliphatic dibasic acid ester is mixed, without a loss kneadability or processability.
Inventors:
NAKAMURA JIN (JP)
Application Number:
PCT/JP2023/033936
Publication Date:
March 28, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
C08L23/16; C08K3/013; C08K5/103; F16F15/08; F16F15/126
Foreign References:
| JPH03124749A | 1991-05-28 | |||
| JP2010070598A | 2010-04-02 | |||
| JP2000351874A | 2000-12-19 | |||
| JP2016124880A | 2016-07-11 | |||
| JPS57100150A | 1982-06-22 | |||
| JPH01113444A | 1989-05-02 | |||
| JPH01115943A | 1989-05-09 | |||
| JPS59193937A | 1984-11-02 | |||
| JPS6181444A | 1986-04-25 | |||
| CN105175901A | 2015-12-23 |
Attorney, Agent or Firm:
YOSHIDA Kazuko (JP)
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