Title:
ACTIVE ENERGY RAY HARDENING COMPOSITION FOR SHEET LIKE OPTICAL ARTICLES
Document Type and Number:
Japanese Patent JP3671658
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an active energy ray hardening composition having low viscosity, excellent in inner hardening properties of thick film, and releasing properties by including compounds having oxetane ring, or compounds having epoxy groups and a photo cation polymerization initiator.
SOLUTION: This composition includes (A) the oxetane compounds containing 1 to 4 oxetane rings, (B) the compounds containing epoxy groups (preferably, an aromatic epoxy resin, a cycloaliphatic epoxy resin), (C) compounds initiating cationic polymerization by irradiation of the active energy ray (preferably diaryliodonium salts). The component (A) is preferably compounded 10 to 95 pts.wt. per 100 pts.wt. of the sum of the component (A) and the component (B). The preferable amount of the component (C) is 0.1 to 10 wt.%. based on the sum of the component (A) and (B). This composition is expected to be suitable for manufacturing the sheet like optical articles such as a Fresnel lens, a lenticular lens or the like.
Inventors:
Nakagawa June
Ichiro Igarashi
Tetsuji Mitsumatsu
Ichiro Igarashi
Tetsuji Mitsumatsu
Application Number:
JP6439998A
Publication Date:
July 13, 2005
Filing Date:
February 27, 1998
Export Citation:
Assignee:
Toagosei Co., Ltd.
International Classes:
G02B1/04; C08G59/40; C08G59/68; G02B3/08; (IPC1-7): C08G59/40; C08G59/68; G02B1/04; G02B3/08
Domestic Patent References:
| JP8073559A | ||||
| JP7053711A | ||||
| JP9031186A |