Title:
METHOD FOR PRODUCING COPOLYMER, METHOD FOR PRODUCING HYDROGENATED COPOLYMER, COPOLYMER COMPOSITION, POLYMER COMPOSITION, AND MOLDED OBJECT
Document Type and Number:
WIPO Patent Application WO/2020/021912
Kind Code:
A1
Abstract:
A copolymer serving as a precursor of a hydrogenated copolymer is produced by copolymerizing an aromatic vinyl compound with an aliphatic conjugated-diene compound in the presence of an ether compound, in order to inhibit the hydrogenated copolymer from having a color after solidification or drying. As the aromatic vinyl compound, use is made of a polycyclic aromatic vinyl compound including at least two monocycles selected from the group consisting of aromatic hydrocarbon monocycles and aromatic heteromonocylces.
Inventors:
YASU YUSUKE (JP)
Application Number:
PCT/JP2019/024069
Publication Date:
January 30, 2020
Filing Date:
June 18, 2019
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F212/32; C08C19/02; C08F212/14; C08F236/10; C08F297/04
Domestic Patent References:
| WO2012165120A1 | 2012-12-06 | |||
| WO2006106929A1 | 2006-10-12 | |||
| WO2017110771A1 | 2017-06-29 |
Foreign References:
| JP2018016738A | 2018-02-01 | |||
| JPS5465787A | 1979-05-26 | |||
| JP2010126636A | 2010-06-10 | |||
| JP2012021092A | 2012-02-02 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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