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Patent Searching and Data


Title:
PLASTIC LENS COMPOSITION, PLASTIC LENS, AND PROCESS FOR PRODUCING THE PLASTIC LENS
Document Type and Number:
WIPO Patent Application WO2002026843
Kind Code:
A3
Abstract:
ABSTRACT A plastic lens composition having a low viscosity and capable of yielding a cured material having a high refractive index and a small specific gravity, a plastic lens by curing the composition, and a method for producing the plastic lens. A plastic lens composition containing a bromine-containing (meth)allyl ester-based compound is low in viscosity as compared with conventional plastic lens compositions and a cured material of the composition has a high refractive index and a low specific gravity.

Inventors:
OOGA KAZUHIKO (JP)
TAJIMA TSUNEO (JP)
KAI KAZUFUMI (JP)
UCHIDA HIROSHI (JP)
Application Number:
JP0108398W
Publication Date:
August 08, 2002
Filing Date:
September 26, 2001
Export Citation:
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Assignee:
SHOWA DENKO K. K.
OOGA, KAZUHIKO
TAJIMA, TSUNEO
KAI, KAZUFUMI
UCHIDA, HIROSHI
International Classes:
C08F16/18; C08F18/16; C08F22/20; G02B1/04; C08F218/18; (IPC1-7): C08F18/16; G02B1/04
Foreign References:
US5204430A1993-04-20
Other References:
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; UCHIDA, HIROSHI ET AL: "Impact-resistant organic glasses with high refractive index", XP002198447, retrieved from STN Database accession no. 123:172020
PATENT ABSTRACTS OF JAPAN vol. 015, no. 328 (C - 0860) 21 August 1991 (1991-08-21)
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