Title:
HIGHLY REFRACTIVE EPISULFIDE-BASED OPTICAL MATERIAL STABILIZER, OPTICAL MATERIAL COMPOSITION USING SAME, AND METHOD FOR PRODUCING OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/045974
Kind Code:
A1
Abstract:
The present invention relates to a highly refractive episulfide-based optical material stabilizer which can resolve striae, color and thermal stability issues that arise in highly refractive episulfide-based optical material, an optical material composition comprising the highly refractive episulfide-based optical material stabilizer, and a method for producing the optical material. The present invention provides an episulfide-based optical material stabilizer comprising the episulfide compound expressed by chemical formula 1. Moreover, provided is an episulfide-based optical material composition comprising the episulfide compound expressed by chemical formula 2, the stabilizer, and the like. By including the stabilizer in the episulfide-based optical material composition, the present invention can resolve, by means of a relatively simple method, the issues of striae, color and thermal stability that occasionally arise in highly refractive episulfide-based optical lenses.
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Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
ROH SOO GYUN (KR)
Application Number:
PCT/KR2019/010973
Publication Date:
March 05, 2020
Filing Date:
August 28, 2019
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
C08K5/45; C08G18/16; C08G18/18; C08G18/24; C08G18/38; C08K3/06; G02B1/04
Foreign References:
| KR20150053826A | 2015-05-18 | |||
| KR20170066660A | 2017-06-14 | |||
| KR101522755B1 | 2015-05-26 | |||
| JP2005272418A | 2005-10-06 | |||
| KR101827334B1 | 2018-02-08 |
Attorney, Agent or Firm:
YOU, Byung Sun (KR)
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