Liquid curable resin composition
AssigneesDsm N.V., Jsr Corporation, Japan Fine Coatings Co., Ltd.
InventorsZen Komiya, Yoshikazu Yamaguchi, Tsuyoshi Watanabe, Takashi Ukachi
Life of this patent
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Abstract
A liquid curable resin composition comprising (1) a (meth)acrylate polymer having a weight average molecular weight relative to polystyrene standard of at least about 5,000, (2) a ring-opening polymerizable monomer containing at least one epoxy group, and (3) a cationic photopolymerization initiator is disclosed. The composition produces cured products which exhibit superior heat resistance, excellent mechanical strength, and superb adhesive characteristics, and is suitable for use as a photo-curable adhesive, a photo-curable sealing material, a resin for optical three-dimensional molding, and a coating material for optical fibers, and optical fiber ribbon matrix.
Claims21
A liquid curable resin composition comprising,
- (1) 10-90 wt. %, relative to the total composition, of a poly(meth)acrylate polymer comprising epoxy groups and having a weight average molecular weight of about 5,000-400,000,
- (2) a ring-opening polymerizable monomer selected from bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, 3,4-epoxycyclohexyl methyl-3,4-epoxycyclohexane carboxylate, bis(3,4-epoxycyclohexyl methyl)adipate, 1,4-butanediol diglycidyl ether, 1,6-hexanediol diglycidyl ether, glycerol triglycidyl ether, trimethylolpropane triglycidyl ether, polyethylene glycol diglycidyl ether and/or polypropylene glycol diglycidyl ether, and
- (3) a cationic photopolymerization initiator,
- (4) a radically polymerizable monomer comprising at least one ethylenically unsaturated group, and
- (5) a free radical photo-initiator.
An optical fiber ribbon comprising a plurality of coated optical fibers bonded together with a matrix material having a Young's modulous of 5-250 kg/mm2, the matrix curing material before curing being a liquid curable resin composition comprising:
- (1) 10-90 wt %, relative to the total composition, of poly(meth)acrylate polymer comprising epoxy groups and having a weight average molecular weight of about 5,000-400,000,
- (2) a ring-opening polymerizable monomer selected from bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, 3,4-epoxycyclohecyl methyl-3,4-epoxycyclohexane carboxylate, bis(3,4-epoxycyclohexyl methyl)adipate, 1,4-butanediol diglycidyl ether, 1,6-hexanediol diglycidyl ether, glycerol triglycidyl ether, trimethylopropane triglycidyl ether, polyethylene glycol digylcidyl ether and/or polypropylene glycol diglycidyl ether, and
- (3) a cationic photomerization initiator.
Dependencies are inferred from the claim text.