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Title:
METHOD FOR PRODUCING POLYTHIOL COMPOUND, POLYMERIZABLE COMPOSITION AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/173820
Kind Code:
A1
Abstract:
The method according to the present invention for producing a polythiol compound comprises a step for reacting a compound represented by general formula (3) with sodium sulfide to give a polyalcohol compound represented by formula (4), and a step for reacting the polyalcohol compound represented by formula (4) thus obtained with a thia agent to give a polythiol compound, wherein the absorbance of a 17.3 wt% aqueous solution of the aforesaid sodium sulfide is not greater than 0.70 at a wavelength of 350 nm when measured using a quartz cell having an optical path length of 50 mm.

Inventors:
TOKUNAGA KOICHI (JP)
KUMA SHIGETOSHI (JP)
SHIMAKAWA CHITOSHI (JP)
Application Number:
JP2018/009391
Publication Date:
September 27, 2018
Filing Date:
March 12, 2018
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C07C319/20; C01B17/36; C07C321/14; C08G18/38; G02B1/04; G02C7/00
Domestic Patent References:
WO2014027428A12014-02-20
WO2007129449A12007-11-15
WO2007129450A12007-11-15
WO2016208707A12016-12-29
Foreign References:
JP2006284920A2006-10-19
JPS6428207A1989-01-30
JPS339126B1
JPH07252207A1995-10-03
JPH02270859A1990-11-05
JPH07252207A1995-10-03
KR20120058635A2012-06-08
JP2006284920A2006-10-19
JP2017058787A2017-03-23
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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