Patent ID: 8716360

Claim:
A curing-type coating-agent composition, comprising: Component (A) in an amount of from 99 to 65 parts by mass; Component (B) in an amount of from 1 to 35 parts by mass; a radical-polymerization initiator serving as Component (C) in an amount of from 0.1 to 10 parts by mass; an ultraviolet absorber serving as Component (D) in an amount of from 1 to 12 parts by mass; and an organic solvent serving as Component (E) in an amount of from 10 to 1,000 parts by mass; with respect to a sum of said Component (A) and said Component (B) being taken as 100 parts by mass; Component (A): a mixture of isocyanuric ring-containing (meth)acrylates, the mixture being constituted of a urethane adduct compound (a1) and a tri(meth)acrylate compound (a2); the urethane adduct compound (a1) being obtainable by an addition reaction of a hydroxide group-containing di(meth)acrylate compound, which is expressed by Formula (1), and an isocyanate compound, which has two or more isocyanate groups within the molecule; the tri(meth)acrylate compound (a2) being expressed by Formula (2); wherein in Formula (1), each of R 1 , R 2 and R 3 expresses a divalent organic group whose number of carbon atoms is from 2 to 10 independently; each of R 4 and R 5 expresses a hydrogen atom or a methyl group independently; each of n 1 , n 2 and n 3 expresses a number of from 1 to 3 independently; and n 1 +n 2 +n 3 =from 3 to 9; wherein in Formula (2), each of R 6 , R 7 and R 8 expresses a divalent organic group whose number of carbon atoms is from 2 to 10 independently; each of R 9 , R 10 ; and R 11 expresses a hydrogen atom or a methyl group independently; each of n 4 , n 5 ; and n 6 expresses a number of from 1 to 3 independently; and n 4 +n 5 +n 6 =from 3 to 9; Component (B): an involatile component in reaction products being made by reacting an alkoxysilane compound (b1), which is expressed by Formula (3), with a colloidal silica (b2), in a mass ratio of from 9:1 to 1:9 between (b1) and (b2), the involatile component involving those in which (b2) is modified chemically with (b1); (P—SiO 3/2 )(O 1/2 R 12 ) z (3) wherein in Formula (3), “P” expresses a group being expressed by Formula (4); R 12 expresses a hydrogen atom or a monovalent organic group; and “z” expresses a positive number of from 0.1 or more to 3 or less; moreover, when “z” is less than 3, (b1) involves a condensate, and each of “P” and R 12 may even involve two or more types of distinct groups within a molecule in the condensate; wherein in Formula (4), each of R 13 ; and R 14 expresses a hydrogen atom, an alkyl group, an alkenyl group or an aryl group independently, or alternatively expresses a hydrocarbon group in which R 13 and R 14 are unified to form a five-membered ring or a six-membered ring; and R 15 expresses a divalent saturated hydrocarbon group whose number of carbon atoms is from 1 to 6.