Title:
METHOD FOR PRODUCING CARBOXYL GROUP-CONTAINING LIQUID NITRILE RUBBER
Document Type and Number:
WIPO Patent Application WO/2020/153183
Kind Code:
A1
Abstract:
Provided is a method for producing carboxyl group-containing liquid nitrile rubber, the method including: bringing a latex of a carboxyl group-containing liquid nitrile rubber into contact with a monovalent or divalent metal salt under a condition in which the pH is 5 or less, so as to salt out the carboxyl group-containing liquid nitrile rubber; and separating the carboxyl group-containing liquid nitrile rubber from an aqueous phase.
Inventors:
SHIONO ATSUHIRO (JP)
Application Number:
PCT/JP2020/000992
Publication Date:
July 30, 2020
Filing Date:
January 15, 2020
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08C1/15; C08F6/22
Domestic Patent References:
| WO2007049651A1 | 2007-05-03 | |||
| WO2018123737A1 | 2018-07-05 |
Foreign References:
| JPS4742853A | ||||
| JPS5027486B1 | 1975-09-08 |
Other References:
See also references of EP 3916021A4
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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