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Title:
PHOTOCHROMIC CURABLE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/008825
Kind Code:
A1
Abstract:
This photochromic curable composition is characterized by comprising (A) a radical-polymerizable component which comprises (A1) a silsesquioxane component having a radical -polymerizable group and (A2) a bifunctional radical -polymerizable monomer represented by general formula (1) and (B) a photochromic compound. In the formula, a is a number of 0 to 30 and b is a number of 0 to 30, with the sum of a and b being 2 to 30 on average; R1, R2, R3 and R4 are each a hydrogen atom or methyl; and A is a divalent organic group having 1 to 20 carbon atoms. The photochromic curable composition is useful particularly as a photochromic coating material, is hard enough not to suffer from scratches in the lens-processing step, and can yield, by a coating method, a photochromic lens which exhibits excellent photochromic characteristics such as excellent color density, fade speed, and repetition durability.

Inventors:
OTANI TOSHIAKI (JP)
TAKENAKA JUNJI (JP)
MOMODA JUNJI (JP)
IZUMI SHINOBU (JP)
Application Number:
PCT/JP2012/067618
Publication Date:
January 17, 2013
Filing Date:
July 10, 2012
Export Citation:
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Assignee:
TOKUYAMA CORP (JP)
OTANI TOSHIAKI (JP)
TAKENAKA JUNJI (JP)
MOMODA JUNJI (JP)
IZUMI SHINOBU (JP)
International Classes:
C08F2/44; C08F290/06; C09D7/12; C09D171/02; C09D183/07; G02B5/23
Domestic Patent References:
WO2010116841A12010-10-14
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Other References:
APPL. ORGANOMETAL CHEM., 2001, pages 683 - 692
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
Ono Pure in addition (JP)
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