Title:
NEW OPTICAL MATERIAL FOR LENS
Document Type and Number:
Japanese Patent JP3675536
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a lens material having a high refractive index, a high Abbe' s number, high heat resistance and good adhesion to mold in cast polymerization by polymerizing a mixture comprising a (meth)acrylate, a specified composition containing divinylbenzene, a polymercapto compound and am oxazoline compound.
SOLUTION: This lens material is obtained by polymerizing a mixture comprising 10-90wt.% at least one (meth)acrylate compound having 2-6 (meth) acryloyl groups in the molecule, 0 to below 80wt.% composition comprising divinylbenzene and a monounsaturated compound having one aromatic vinyl group or (meth)acryloyl group in the molecule, 10-60wt.% at least one polymercapto compound having at least two mercapto groups in the molecule and 0.01-20 pts.wt., per 100 pts.wt. total of the above three components, oxazoline compound having at least one oxazoline ring and represented by the formula (wherein R is an m-valent hydrocarbon group; and m≥1).
Inventors:
Shoichi Amatani
Shimuta Masanori
Isao Wataru
Shimuta Masanori
Isao Wataru
Application Number:
JP29710595A
Publication Date:
July 27, 2005
Filing Date:
November 15, 1995
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
G02B1/04; C08F2/38; C08F4/28; C08F4/32; C08F12/00; C08F20/10; C08F212/36; C08F220/20; (IPC1-7): C08F220/20; C08F2/38; C08F4/32; C08F212/36; G02B1/04
Domestic Patent References:
| JP5070524A |
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