Title:
EPISULFIDE COMPOUND FOR OPTICAL MATERIAL, COMPOSITION FOR HIGH REFRACTIVE INDEX OPTICAL MATERIAL CONTAINING SAME, AND METHOD FOR MANUFACTURING OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/167256
Kind Code:
A1
Abstract:
The present invention relates to a composition for an optical material in which a rapid curing phenomenon that occurs during polymerization in an episulfide-based high refractive optical material is suppressed, and to a method for manufacturing an optical material using same. Provided in the present invention is a composition for an episulfide-based high refractive index optical material comprising an episulfide compound represented by formula 1, a 2,3-epoxypropyl (2,3-epithiopropyl) sulfide compound, a catechol compound, and a quaternary phosphonium salt as a polymerization catalyst. The composition of the present invention can prevent a sudden increase in viscosity during polymerization in an episulfide-based high refractive index optical material and maintain a constant curing rate, and thus can be used as a high-quality lens material free of polymerization imbalance issues.
Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
ROH SOO GYUN (KR)
Application Number:
PCT/KR2021/000990
Publication Date:
August 26, 2021
Filing Date:
January 26, 2021
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
C07D331/02; C07D409/12; C08G75/06; C08K3/06; C08K5/29; C08K5/37; G02B1/04
Foreign References:
| KR101349273B1 | 2014-01-13 | |||
| JP6402971B2 | 2018-10-10 | |||
| KR20180061429A | 2018-06-07 | |||
| KR20190104670A | 2019-09-11 | |||
| JP2013142073A | 2013-07-22 |
Attorney, Agent or Firm:
YOU, Byung Sun (KR)
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