Title:
METHOD FOR PRODUCING THIOEPOXY-BASED OPTICAL MATERIAL, AND POLYMERIC COMPOSITION FOR THIOEPOXY-BASED OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/178522
Kind Code:
A2
Abstract:
The present invention relates to a method for producing a thioepoxy-based optical material, and a polymeric composition for a thioepoxy-based optical material and, in particular, to a production method which can obtain a thioepoxy-based optical material having good color, being capable of inhibiting polymerization imbalance and having good thermal resistance, and to a polymeric composition therefor. The present invention provides a method for producing a thioepoxy-based optical material, comprising a step of obtaining a bis(2-mercaptoethyl) sulfide compound in the form of a synthetic product comprising less than 3% by weight of at least one of 2-2-[2-(2-mercaptoethylthio)ethoxy] ethanol and 1,2,5-trithiepane. Also, the present invention provides a polymeric composition for a thioepoxy-based optical material, comprising the bis (2-mercaptoethyl) sulfide compound in the form of a synthetic product and a thioepoxy compound. According to the present invention, it is possible to obtain a high-quality of thioepoxy-based optical material which has good thermal resistance and of which coloration and polymerization imbalance are suppressed by a simple and easy method.
Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
ROH SOO GYUN (KR)
Application Number:
PCT/KR2016/004728
Publication Date:
November 10, 2016
Filing Date:
May 04, 2016
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
G02B1/04; C08G18/38; C08L63/00
Attorney, Agent or Firm:
YOU, BYUNG SUN (KR)
유병선 (KR)
유병선 (KR)
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