Title:
METHOD FOR MANUFACTURING THIOURETHANE-BASED OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2013/069964
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing thiourethane-based optical material, and particularly to a method for manufacturing high-quality optical material having high yield without developing striae or white turbidity due to imbalanced polymerization, and is colorless, transparent and changeless. Provided is a method for manufacturing thiourethane-based optical material in which a polymerization composite, comprising a polythiol compound and a polyiso(thio)cyanate compound, is in-mold polymerized, and is characterized in that mixing, defoaming and injection into a mold are performed within the 21- 40℃ temperature range. The thiourethane-based optical material manufactured according to the present invention can replace existing optical material and be widely used in a variety of industries.
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| JPH03273030 | INTERNAL MOLD RELEASE AND PRODUCTION OF POLYURETHANE |
| WO/1993/008178 | TRIS(NORBORNENYL) ISOCYANURATE |
Inventors:
JANG DONG GYU (KR)
ROH SOO GYUN (KR)
JIN WEN YI (KR)
KIM JONG HYO (KR)
SEO JIN MOO (KR)
ROH SOO GYUN (KR)
JIN WEN YI (KR)
KIM JONG HYO (KR)
SEO JIN MOO (KR)
Application Number:
PCT/KR2012/009344
Publication Date:
May 16, 2013
Filing Date:
November 07, 2012
Export Citation:
Assignee:
KOC SOLUTION CO LTD (KR)
International Classes:
C08G75/04; C08G18/02; C08L81/00; G02B1/04
Foreign References:
| KR20090051090A | 2009-05-20 | |||
| KR20080098642A | 2008-11-11 | |||
| JP2008056854A | 2008-03-13 | |||
| KR20110044272A | 2011-04-28 | |||
| KR20100120083A | 2010-11-12 |
Attorney, Agent or Firm:
YOU, BYUNG SUN (KR)
유병선 (KR)
유병선 (KR)
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Claims: