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US 10,884,334 B2Granted
Photocurable resin composition
AssigneeTokuyama Corporation
InventorsMasayuki Miyazaki, Junji Momoda, Junji Takenaka, Takashi Tamukai
Life of this patent
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Abstract
To provide a photocurable resin composition comprising an N-vinyl amide compound, a polyfunctional (meth)acrylate monomer and a photopolymerization initiator and having excellent adhesion to an optical substrate and free from an appearance defect such as a crack or shrinkage and a laminate having a coat layer obtained by curing the photocurable resin composition.
Claims19
A photocurable resin composition comprising:
- (A) an N-vinyl amide compound represented by the following formula (1):
- wherein R1 and R2 are each independently a hydrogen atom or hydrocarbon group having 1 to 5 carbon atoms, or R1 and R2 may be bonded together to form a hydrocarbon group having 2 to 6 carbon atoms;
- (B) a polyfunctional (meth)acrylate monomer represented by the following formula (2):
- wherein R4 and R5 are each independently a hydrogen atom or methyl group, R3 is a trivalent to hexavalent organic residue, “a” is an integer of 0 to 3, and “b” is an integer of 3 to 6;
- (C) a photopolymerization initiator;
- and
- (D) a compound having a 2,2,6,6-tetramethyl-4-piperidyl skeleton and represented by the following formula (4) as a radical scavenger;
- wherein R9 and R10 are each independently a hydrogen atom or methyl group, and “e” is an integer of 5 to 12.
5 more elements
Dependencies are inferred from the claim text.