Title:
MATERIAL FOR PLASTIC LENS, PRODUCTION PROCESS OF THE MATERIAL, COMPOSITION FOR PLASTIC LENS, PLASTIC LENS OBTAINED BY CURING THE COMPOSITION, AND PRODUCTION PROCESS OF THE PLASTIC LENS
Document Type and Number:
WIPO Patent Application WO2001096909
Kind Code:
A3
Abstract:
A material for plastic lenses, comprising at least one group represented by the following formula (1) as a terminal group and a group represented by the following formula (2) as a repeating unit.wherein each R<1> independently represents an allyl group or a methallyl group, A<1> and A<2> each independently represents an organic residue derived from a dicarboxylic acid or a carboxylic anhydride, and each X independently represents an organic residue derived from a polyhydric alcohol having from 2 to 3 hydroxyl groups and containing an alicyclic structure within the molecule, provided that by the ester bonding, X can have a branched structure having a group of formula (1) as a terminal group and a group of formula (2) as a repeating unit.
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Inventors:
OOGA KAZUHIKO (JP)
ASAI YOSHIFUMI (JP)
KAI KAZUFUMI (JP)
TAJIMA TSUNEO (JP)
UCHIDA HIROSHI (JP)
ASAI YOSHIFUMI (JP)
KAI KAZUFUMI (JP)
TAJIMA TSUNEO (JP)
UCHIDA HIROSHI (JP)
Application Number:
PCT/JP2001/004878
Publication Date:
April 18, 2002
Filing Date:
June 08, 2001
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
OOGA KAZUHIKO (JP)
ASAI YOSHIFUMI (JP)
KAI KAZUFUMI (JP)
TAJIMA TSUNEO (JP)
UCHIDA HIROSHI (JP)
OOGA KAZUHIKO (JP)
ASAI YOSHIFUMI (JP)
KAI KAZUFUMI (JP)
TAJIMA TSUNEO (JP)
UCHIDA HIROSHI (JP)
International Classes:
C08F18/16; G02B1/04; (IPC1-7): C08F18/12; G02B1/04
Foreign References:
EP0593877A1 | 1994-04-27 | |||
EP0540043A1 | 1993-05-05 |
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