Title:
STABILIZER FOR EPISULFIDE-BASED OPTICAL MATERIAL HAVING HIGH REFRACTIVE INDEX, COMPOSITION FOR OPTICAL MATERIAL USING SAME, AND METHOD FOR PRODUCING OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/040486
Kind Code:
A1
Abstract:
The present invention relates to a stabilizer for episulfide-based optical material having a high refractive index, a composition for optical material using same, and a method for producing optical material, the stabilizer allowing the issues of striae and thermal stability that arise in the episulfide-based optical material having a high refractive index to be resolved. The present invention provides a stabilizer for episulfide-based optical material, the stabilizer comprising the episulfide compound expressed by chemical formula 1. Additionally, provided is a composition for episulfide-based optical material, the composition comprising episulfide compound expressed by chemical formula 2. The present invention includes the stabilizer in episulfide-based optical material having a high refractive index, and thus, by means of a comparatively simple method, the occasional issues of striae and thermal stability that arise in the episulfide-based optical material having a high refractive index can be resolved.
Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
ROH SOO GYUN (KR)
Application Number:
PCT/KR2019/010414
Publication Date:
February 27, 2020
Filing Date:
August 16, 2019
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
C08K5/45; C08G18/16; C08G18/24; C08G18/38; C08G18/72; G02B1/04
Foreign References:
| JP2003020319A | 2003-01-24 | |||
| KR101608961B1 | 2016-04-05 | |||
| JP2010043145A | 2010-02-25 | |||
| US20030195270A1 | 2003-10-16 | |||
| KR20160147252A | 2016-12-22 |
Attorney, Agent or Firm:
YOU, Byung Sun (KR)
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