Patent ID: 8987344
Filing Date: 2015-03-24
Classification: C08G,C08K,C08L,C09D

Abstract:
1. A hardcoat composition comprising at least the following components (A) to (E): Component (A): a poly(methyl)glycidyl ether compound represented by Formula (1): wherein R 1 is a chain aliphatic residue or a chain aliphatic polyether residue which may contain a hydroxyl group; R 2 is hydrogen or a methyl group; and n 1 represents an integer of 2 or larger; Component (B): a silsesquioxane compound containing a cationic polymerizable group; Component (C): a silicate compound represented by Formula (2): wherein R 3 to R 6 are each independently an organic group having a cationic polymerizable group, hydrogen or an alkyl group; and n 2 represents an integer from 2 to 10; Component (D): a silane compound represented by Formula (3) or a partial condensed compound of the silane compound, or a mixture of such compounds: wherein R 7 is an organic group having a cationic polymerizable group; R 8 and R 9 are each independently hydrogen or an alkyl group; and n 3 represents an integer from 1 to 3; Compound (E): a cationic photopolymerization initiator, wherein the composition comprises 5 to 40 parts by weight of the component (A), 60 to 95 parts by weight of the total of the components (B), (C), and (D), and 0.1 to 10 parts by weight of the component (E), each based on 100 parts by weight of the total of the components (A) to (D), said composition further comprising at least one ultraviolet absorber as component (F), wherein the content of the component (F) is 0.1 to 10 parts by weight based on 100 parts by weight of the total of the components (A) to (D) and wherein the component (F) comprises at least one or more ultraviolet absorber having a maximum absorption wavelength of 320 to 400 nm (UV-A), wherein the component (A) is selected from the group consisting of ethylene glycol (methyl) diglycidyl ether, triethylene glycol di(methyl)glycidyl ether, tetraethylene glycol di(methyl)glycidyl ether, polyethylene glycol di(methyl)glycidyl ether, glycerin di(methyl)glycidyl ether, 1,4-butanediol di(methyl)glycidyl ether, 1,6-hexanediol di(methyl)glycidyl ether, neopentyl glycol (methyl)glycidyl ether, glycerin tri(methyl)glycidyl ether, trimethylolpropane tri(methyl)glycidyl ether, pentaerythritol tri(methyl)glycidyl ether, pentaerythritol tetra(methyl)glycidyl ether, dipentaerythritol hexa(methyl)glycidyl ether, dipentaerylthritol penta(methyl)glycidyl ether, dipentaerythritol tetra(methyl)glycidyl ether or carbitol polyglycidyl ether, wherein the component (B) comprises a closed type cage-shaped-like silsesquioxane represented by Formula (6) or a partially open type cage-shaped-like silsesquioxane represented by Formula (7), each having at least one or more cationic polymerizable group: wherein R wherein the cationic polymerizable group in Formulae (6) and (7) is represented by Formula (30), (31), (32) or (33): wherein R 38 and R 39 each independently represent hydrogen or a methyl group; R 40 and R 41 each independently represent a methyl group or an ethyl group; a, b 2 , c, d 2 each independently represent an integer from 1 to 10; and b 1 and d 1 each independently represent 0 or 1.