Photo-curable coating composition for hard protective coat and coated article
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsYuji Yoshikawa, Masaaki Yamaya
Life of this patent
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Abstract
A photo-curable coating composition comprising (A) 100 parts by weight of a silicone compound having at least three epoxycyclohexyl-bearing organic groups each directly attached to a silicon atom, but free of alkoxy groups, and having a molecular weight of 500-2,100 and an epoxycyclohexyl-bearing organic group equivalent of 180-230, (B) 0.1-5 parts by weight of a photoacid generator, and optionally, (C) 30-400 parts by weight of inorganic oxide particles having an average particle size of 1-500 nm or (D) 1-400 parts by weight of a curable resin which is shrinkable upon curing forms a hard protective coat.
Claims18
1-21. (canceled)
A photo-curable coating composition for forming a hard protective coat, comprising:
- (A) 100 parts by weight of a silicone compound having formula (2):
- wherein R is hydrogen or a monovalent hydrocarbon group and R1 is an epoxycyclohexyl-bearing organic group, containing at least three R1 groups in a molecule, but free of alkoxy groups, R2 is R or R1, and a is an integer of 1 to 10, with the proviso that R2 at each end is R1 when a=1, and at least one of R2 is R1 when a=2, b is an integer of 0 to 8, the sum of a+b is 2 to 10, and each R, R1 and R2 may be the same or different, and having a molecular weight of 500 to 2,100 and an epoxycyclohexyl-bearing organic group equivalent of 180 to 230, and
- (B) 0.1 to 5 parts by weight of a photoacid generator which is dissolvable in component (A).
Dependencies are inferred from the claim text.