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Title:
POLYTHIOURETHANE FILM, MATERIAL FOR SPECTACLE LENS, SPECTACLE LENS, AND PRODUCTION METHOD FOR SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2023/176153
Kind Code:
A1
Abstract:
A polythiourethane film containing a polythiourethane that is the reaction product of a thiol compound having two functional groups, a thiol compound having three or more functional groups, and an isocyanate compound.

Inventors:
WATANABE MAKOTO (JP)
OIKI MOTOHARU (JP)
KAWATO NOBUO (JP)
Application Number:
PCT/JP2023/002153
Publication Date:
September 21, 2023
Filing Date:
January 24, 2023
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
G02C7/00; B29C51/10; B29C51/14; B29C51/16; B32B7/022; B32B27/40; C08G18/38; G02B1/04; G02C7/10
Domestic Patent References:
WO2009098886A12009-08-13
WO2022009882A12022-01-13
WO2017047745A12017-03-23
WO2019009230A12019-01-10
WO2018221466A12018-12-06
WO2015088013A12015-06-18
Foreign References:
JPH07247335A1995-09-26
JPH07252341A1995-10-03
JP2021509740A2021-04-01
US20080090989A12008-04-17
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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