Patent ID: 8349934

Claim:
A hardening composition comprising: silica fine particles (a), a (meth)acrylate (b) having two or more ethylenically unsaturated groups and being free from cyclic structure, a (meth)acrylate (c) having an ethylenically unsaturated group and having an alicyclic structure, a polymerization initiator (d) and black inorganic fine particles (e), wherein the silica fine particles (a) are surface-treated with a silane compound (f) represented by the following general formula (1) and a silane compound (g) represented by the following general formula (2): (in the formula (1), R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkyl group having 1 to 3 carbon atoms or a phenyl group, R 3 represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; q represents an integer of 1 to 6; and r represents an integer of 0 to 2, (in the formula (2), R 4 is an alkyl group having 1 to 3 carbon atoms or a phenyl group which may have a substituent; R 5 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; s is an integer of 0 to 6; and t is an integer of 0 to 2.