Title:
METHOD FOR PRODUCING COPOLYMER RESIN OF DICYCLOPENTADIENE AND VINYL AROMATIC COMPOUND
Document Type and Number:
WIPO Patent Application WO/2021/117854
Kind Code:
A1
Abstract:
[Problem] To provide a method which is for producing a copolymer resin of dicyclopentadiene and a vinyl aromatic compound, and by which a resin can be continuously produced at high yield while suppressing the generation of a high-molecular-weight substance of the vinyl aromatic compound or a sparingly soluble substance of dicyclopentadiene. [Solution] In a production method according to the present invention, it has been found that, by introducing a raw material feeding step for continuously feeding polymerization raw materials to a preheated solvent in a reaction system and raising the temperature of the polymerization raw materials while discharging a part of a reaction solution containing the solvent and the polymerization raw materials to the outside of the reaction system, the temperature of the polymerization raw materials can be rapidly raised using sensible heat, and thus the generation of sparingly soluble substances can be suppressed. Moreover, by providing a reaction step after the raw material feeding step, a polymerization reaction is performed until the molecular weight reached a desired value, to improve the yield.
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Inventors:
SAWADA GORO (JP)
IIJIMA YOSHIKAZU (JP)
IWAMURA KYOHEI (JP)
KAWATE TAKAHIRO (JP)
KAGA SHINNOSUKE (JP)
IIJIMA YOSHIKAZU (JP)
IWAMURA KYOHEI (JP)
KAWATE TAKAHIRO (JP)
KAGA SHINNOSUKE (JP)
Application Number:
PCT/JP2020/046223
Publication Date:
June 17, 2021
Filing Date:
December 11, 2020
Export Citation:
Assignee:
MARUZEN PETROCHEM CO LTD (JP)
International Classes:
C08F212/06; C08F2/06; C08F232/08
Domestic Patent References:
| WO2015147027A1 | 2015-10-01 | |||
| WO2018168654A1 | 2018-09-20 |
Foreign References:
| JP2004515618A | 2004-05-27 | |||
| JP2004026903A | 2004-01-29 | |||
| JPS6451416A | 1989-02-27 | |||
| JP2015124246A | 2015-07-06 | |||
| JPS5117291A | 1976-02-12 | |||
| JP2004515618A | 2004-05-27 |
Other References:
See also references of EP 4074737A4
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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