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Title:
METHOD FOR MANUFACTURING HYDROGENATED NITRILE RUBBER
Document Type and Number:
WIPO Patent Application WO/2019/093248
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a hydrogenated nitrile rubber having an iodine value not more than 120, the method comprising: a first coagulation step for adding, as a coagulant, a non-halogen atom-containing metallic salt to a latex of a nitrile rubber so as to coagulate the nitrile rubber; a solution preparation step for dissolving the coagulated nitrile rubber in an organic solvent so as to prepare a nitrile rubber solution; a hydrogenation step for performing a hydrogenation reaction on the nitrile rubber solution so as to obtain a hydrogenated nitrile rubber solution; and a second coagulation step for adding, as a coagulant, a divalent metallic salt to the hydrogenated nitrile rubber so as to coagulate the hydrogenated nitrile rubber.

Inventors:
NAKAI AKITO (JP)
Application Number:
PCT/JP2018/040895
Publication Date:
May 16, 2019
Filing Date:
November 02, 2018
Export Citation:
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Assignee:
ZEON CORP (JP)
International Classes:
C08C19/02; C08C1/15
Domestic Patent References:
WO2016121284A12016-08-04
WO2009082004A12009-07-02
Foreign References:
JP2017504696A2017-02-09
JPH08100025A1996-04-16
JP2010528139A2010-08-19
JP2014518300A2014-07-28
JP2005502742A2005-01-27
JP2017504696A2017-02-09
Other References:
See also references of EP 3708590A4
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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