Title:
NITRILE GROUP-CONTAINING COPOLYMER RUBBER, RUBBER COMPOSITION, AND CROSSLINKED RUBBER
Document Type and Number:
WIPO Patent Application WO/2022/250058
Kind Code:
A1
Abstract:
Provided is a nitrile group-containing copolymer rubber which contains an acrylonitrile unit (a), an α,β-ethylenically unsaturated nitrile monomer unit (b) excluding acrylonitrile, and a conjugated diene monomer unit (c), and which has an iodine value of 120 or less. In all monomer units, the contained proportion of the total of the acrylonitrile unit (a) and the α,β-ethylenically unsaturated nitrile monomer unit (b) excluding acrylonitrile is 1-50 wt%. The contained ratio of the acrylonitrile unit (a) and the α,β-ethylenically unsaturated nitrile monomer unit (b) excluding acrylonitrile as expressed in terms of the weight ratio 'contained amount of acrylonitrile unit (a): contained amount of: α,β-ethylenically unsaturated nitrile monomer unit (b) excluding acrylonitrile' is 10:90 to 90:10.
Inventors:
ONO KENTARO (JP)
KATANO CHIKARA (JP)
KATANO CHIKARA (JP)
Application Number:
PCT/JP2022/021275
Publication Date:
December 01, 2022
Filing Date:
May 24, 2022
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F236/12; C08C19/02; C08F8/04; C08L15/00
Domestic Patent References:
| WO2017047571A1 | 2017-03-23 |
Foreign References:
| JPS62240338A | 1987-10-21 | |||
| JPS62230837A | 1987-10-09 | |||
| JPS6395242A | 1988-04-26 | |||
| JPS62156144A | 1987-07-11 | |||
| JPH05222267A | 1993-08-31 | |||
| JPH05222244A | 1993-08-31 | |||
| US3697489A | 1972-10-10 | |||
| US3753959A | 1973-08-21 | |||
| JPH04261407A | 1992-09-17 | |||
| JP6962428B1 | 2021-11-05 | |||
| JP2022099288A | 2022-07-04 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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