Title:
PHOTO-SETTING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1987/000535
Kind Code:
A1
Abstract:
A photo-setting composition prepared by compounding a polymerizable monomer and/or oligomer with (1) an UV absorber having extinction coefficients of 2,000/M.cm or more at 300 to 350 nm and 1,000/M.cm or less at 360 nm and (2) a photopolymerization initiator having an extinction coefficient of 10/M.cm or less at 390 nm. A colorless, transparent, thick setting product uniformly set to the core can be obtained by irradiating the composition with UV rays from a light source emitting light of 360 to 380 nm.
Inventors:
MARUYAMA SATOSHI (JP)
YOKOTA YOSHIHISA (JP)
GOTO MASATAKA (JP)
YOKOTA YOSHIHISA (JP)
GOTO MASATAKA (JP)
Application Number:
PCT/JP1985/000407
Publication Date:
January 29, 1987
Filing Date:
July 19, 1985
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C08F2/44; C08F2/48; (IPC1-7): C08F2/44; C08F2/50; C08G75/04
Foreign References:
| JPH04933629A | ||||
| JPH05434389A | ||||
| JPS58182601A | 1983-10-25 | |||
| JPH05849636A |
Other References:
See also references of EP 0231375A1
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