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Title:
EPISULFIDE COMPOSITION, POLYMERIZABLE COMPOSITION, CURED PRODUCT, AND OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/032598
Kind Code:
A1
Abstract:
This episulfide composition comprises: an episulfide compound (A) that contains an episulfide ring and a polysulfide bond in which at least three bonds represented by -S- are connected, and an episulfide compound (B) that contains an episulfide ring and a (di)sulfide bond and does not contain the aforementioned polysulfide bond. The content of the episulfide compound (A) is at least 100 mass-ppm with reference to the total amount of the episulfide composition.

Inventors:
TOKUNAGA KOICHI (JP)
FURUYA MASAYUKI (JP)
Application Number:
PCT/JP2022/030174
Publication Date:
March 09, 2023
Filing Date:
August 05, 2022
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08G75/08; C07C319/24; C07C323/24; C07D331/02; G02B1/04
Domestic Patent References:
WO2015137402A12015-09-17
WO2015159811A12015-10-22
WO2010131631A12010-11-18
WO2018079829A12018-05-03
WO2017047745A12017-03-23
Foreign References:
JP6200124B12017-09-20
JP2019104689A2019-06-27
JP2000281787A2000-10-10
JPH11322930A1999-11-26
JP2002194083A2002-07-10
JP2000230050A2000-08-22
JP2002194083A2002-07-10
JP2021091757A2021-06-17
JP2021142430A2021-09-24
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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