Title:
POLYTHIOL COMPOSITION FOR OPTICAL MATERIAL AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2018/043896
Kind Code:
A1
Abstract:
One embodiment relates to a polythiol composition for an optical material and a method for preparing same. According to the method for preparing the polythiol composition, according to the embodiment, a side-reaction is inhibited when preparing a polythiol compound, and thus a tetrafunctional polythiol composition containing a low amount of trifunctional polythiol which is a by-product, and having high purity may be obtained. Thus, a polymerizable composition and an optical material obtained from the high-purity tetrafunctional polythiol composition exhibit excellent optical properties such as refractive index, heat resistance, etc., and thus may be usefully employed in manufacturing various plastic optical materials such as an eyeglass lens, camera lens, etc.
Inventors:
HONG SEUNG MO (KR)
SHIM JONGMIN (KR)
SEO HYEON MYEONG (KR)
SHIN JUNGHWAN (KR)
SHIM JONGMIN (KR)
SEO HYEON MYEONG (KR)
SHIN JUNGHWAN (KR)
Application Number:
PCT/KR2017/006861
Publication Date:
March 08, 2018
Filing Date:
June 29, 2017
Export Citation:
Assignee:
SKC CO LTD (KR)
International Classes:
C07C321/14; C07C319/22; C07C319/26; C08G18/52; C08L81/02; G02B1/04
Foreign References:
| KR0180926B1 | 1999-05-15 | |||
| KR20140141723A | 2014-12-10 | |||
| KR20110033960A | 2011-04-01 | |||
| KR920005917B1 | 1992-07-24 | |||
| KR20120058635A | 2012-06-08 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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