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Patent Searching and Data


Title:
PHOTOCURABLE COMPOSITION
Document Type and Number:
Japanese Patent JPH04159306
Kind Code:
A
Abstract:
PURPOSE:To obtain a photocurable composition suitable for the production of an optical component being good in inside homogeneity and accuracy of surface transfer, having an ability to cut ultraviolet rays and excelling in transparency and hue by mixing a specified diethylenically unsaturated monomer with a specified photopolymerization initiator and a specified ultraviolet absorber. CONSTITUTION:A photocurable composition is obtained by mixing 100 pts.wt. diethylenically unsaturated monomer of formula I (wherein A is a group of formula II, III or IV; R<1> to R<5> are each 1-8 C alkylene; and (l), (m) and (n) are each 0 or 1-4), e.g. a compound of formula V, VI or VII with 0.02-0.4 pt.wt. photopolymerization initiator selected between a benzophenone photoinitiator and an acetophenone photoinitiator (e.g. 1-phenyl-2-hydroxy-2-methylpropan-1-one) and 0.01-0.2 pt.wt. ultraviolet absorber selected between a benzophenone ultraviolet absorber and a benzotriazole ultraviolet absorber [e.g. 2,4- dihydroxybenzophenone or 2-(2'-hydroxy-5-methylphenyl) benzotriazole].

Inventors:
WATARI FUMIE
ISAKA TSUTOMU
TAMURA YUTAKA
Application Number:
JP28533590A
Publication Date:
June 02, 1992
Filing Date:
October 23, 1990
Export Citation:
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Assignee:
MITSUBISHI PETROCHEMICAL CO
International Classes:
G02B1/04; C08F2/44; C08F2/50; C08F12/00; C08F12/30; C08F12/34; G02B1/08; (IPC1-7): C08F2/44; C08F2/50; C08F12/30; C08F12/34; G02B1/04; G02B1/08
Attorney, Agent or Firm:
Takaya Yamamoto