Title:
【発明の名称】重合性組成物
Document Type and Number:
Japanese Patent JP3085570
Kind Code:
B2
Abstract:
A polymerizable composition comprising at least two di(meth)acrylate compounds of the specific general formula (I), e.g., dimethacrylate compounds of polyethylene glycol adduct of 2,2-bis(4-hydroxyphenyl)propane, wherein the content of di(meth)acrylate compound of the general formula (I) in which m + n is 2 to 3 is 30 to 80 mol% and the content of di(meth)acrylate compound of the general formula (I) in which m + n is 6 to 12 is 20 to 50 mol%, and organic glass formed of a polymer from the polymerizable composition, the polymerizable composition being suitable as a transparent resin, particularly as a raw material for an ophthalmic lens which is free of optical strain, is with sufficient hardness and is excellent in impact resistance and light resistance.
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Inventors:
Satoshi Imura
Hironobu Nago
Kazuhiko Kuramoto
Hironobu Nago
Kazuhiko Kuramoto
Application Number:
JP15700794A
Publication Date:
September 11, 2000
Filing Date:
July 08, 1994
Export Citation:
Assignee:
Tokuyama Corporation
International Classes:
C08F20/10; C08F220/30; C08F290/00; C08F290/06; G02B1/04; (IPC1-7): C08F220/30; G02B1/04
Domestic Patent References:
| JP6308434A | ||||
| JP3236853A | ||||
| JP3135501A |
Other References:
【文献】仏国特許出願公開2699541(FR,A1)