Title:
METHOD FOR PRODUCING ACRYLIC RUBBER, AND ACRYLIC RUBBER OBTAINED BY SAID PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/208821
Kind Code:
A1
Abstract:
A method for producing an acrylic rubber is provided, the method comprising an emulsion polymerization step in which monomers comprising a (meth)acrylic ester as a main ingredient are emulsion-polymerized in the presence of both a nonionic emulsifier and an anionic emulsifier using a polymerization initiator to obtain a polymer emulsion, a coagulation step in which the polymer emulsion is brought into contact with a metal sulfate to coagulate the emulsion and obtain hydrous crumbs, a washing step in which the hydrous crumbs are washed, and a drying step in which the washed hydrous crumbs are dried.
Inventors:
FURUKO AYAKO (JP)
KOJIMA KEISUKE (JP)
SATO SUSUMU (JP)
KOJIMA KEISUKE (JP)
SATO SUSUMU (JP)
Application Number:
PCT/JP2019/018096
Publication Date:
October 31, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F6/22; C08F2/24; C08F20/12; C08K3/013; C08K5/16; C08L33/08
Domestic Patent References:
WO2018079783A1 | 2018-05-03 |
Foreign References:
JP2004131654A | 2004-04-30 | |||
JPH02212574A | 1990-08-23 | |||
JPH03109456A | 1991-05-09 | |||
JP2008189860A | 2008-08-21 | |||
JPH11199743A | 1999-07-27 | |||
JP2012214734A | 2012-11-08 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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