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Title:
BLEACHING AGENT, PREPARATION AND USE OF THE SAME WITH POLYMERIZABLE COMPOSITIONS FOR OPTICAL MATERIALS
Document Type and Number:
WIPO Patent Application WO/2021/095774
Kind Code:
A1
Abstract:
The present invention relates to a bleaching agent comprising: (A) a polymerizable component comprising an aromatic ester compound including two or more allyloxycarbonyl groups, (B) a colouring component comprising particles of a blue pigment (b1), (C) a polymeric dispersing agent to disperse the particles of the colouring component (B) in the polymerizable component (A), the particles of the colouring component (B) having an average size equal to or lower than 400 nm. The present invention also relates to the preparation and use of the above bleaching agent with polymerizable compositions for optical materials.

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Inventors:
VECCHIONE ANDREA (IT)
FORESTIERI ROBERTO (IT)
MARIANI FRANCESCO (IT)
BOS WILLEM (NL)
Application Number:
PCT/JP2020/042098
Publication Date:
May 20, 2021
Filing Date:
November 11, 2020
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08F18/16; C08F2/44; C08F18/18; G02B1/04
Domestic Patent References:
WO2014043473A12014-03-20
WO2001016194A12001-03-08
WO2000031584A22000-06-02
Foreign References:
EP1331494A12003-07-30
JP2017116857A2017-06-29
JPH10186291A1998-07-14
JPS60245607A1985-12-05
EP3270212A12018-01-17
JPH05194616A1993-08-03
EP1331494A12003-07-30
JP2003105227A2003-04-09
US9411076B22016-08-09
US9411076B22016-08-09
US5599876A1997-02-04
EP3381951A12018-10-03
EP0035304A21981-09-09
US4812545A1989-03-14
Other References:
"Encyclopedia of Chemical Technology", vol. 2, KIRK-OTHMER, pages: 111 - 112
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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