Title:
METHOD FOR PRODUCING POLYTHIOL COMPOUND FOR OPTICAL MATERIAL AND METHOD FOR PRODUCING URETHANE-BASED OPTICAL MATERIAL USING THE SAME
Document Type and Number:
Japanese Patent JP2016175905
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a polythiol compound for a high quality optical material that exhibits a good property in terms of hue, a composition for optical material, comprising the polythiol compound, and an optical material prepared from the composition for optical material.SOLUTION: The method for producing a polythiol compound for optical material is provided in which an epichlorohydrin compound having a total content of impurities composed of acrolein, allyl chloride, 1,2-dichloropropane, 2,3-dichloropropene, 2-methyl-2-pentanol, 2-chloro-allyl alcohol, cis-1,3-dichloropropene, trans-1,3-dichloro propene, 1,3-dichloro-isopropanol, 1,2,3-trichloropropane, and 2,3-dichloro-propanol of 0.5 wt.% or less, and 2-mercaptoethanol are reacted.SELECTED DRAWING: None
Inventors:
JANG DONG GYU
ROH SOO GYUN
KIM JONG HYO
ROH SOO GYUN
KIM JONG HYO
Application Number:
JP2016066180A
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
Assignee:
KOC SOLUTION CO LTD
International Classes:
C07C321/14; C07C319/20; C08G18/38; C08G18/72; G02B1/04; G02C7/00
Domestic Patent References:
| JPS63104970A | 1988-05-10 | |||
| JPH01305075A | 1989-12-08 | |||
| JPH11228555A | 1999-08-24 | |||
| JPH0616653A | 1994-01-25 | |||
| JP2010529165A | 2010-08-26 |
Foreign References:
| WO2007129449A1 | 2007-11-15 |
Other References:
JPN6015047040; "ＥＰＩＣＨＬＯＲＯＨＹＤＲＩＮ" Ｐｒｏｄｃｕｔ Ｄａｔａ Ｓｈｅｅｔ , 201107, Ｓｏｌｖａｙ Ｃｈｅｍｉｃａｌｓ Ｉｎｔｅｒｎａｔｉｏｎａｌ
Attorney, Agent or Firm:
IPD International Patent Business Corporation