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Patent Searching and Data


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)
Application Number:
PCT/JP2019/018096
Publication Date:
October 31, 2019
Filing Date:
April 26, 2019
Export Citation:
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Assignee:
ZEON CORP (JP)
International Classes:
C08F6/22; C08F2/24; C08F20/12; C08K3/013; C08K5/16; C08L33/08
Domestic Patent References:
WO2018079783A12018-05-03
Foreign References:
JP2004131654A2004-04-30
JPH02212574A1990-08-23
JPH03109456A1991-05-09
JP2008189860A2008-08-21
JPH11199743A1999-07-27
JP2012214734A2012-11-08
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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