Patent ID: 7978409

Claim:
A hard coat layer-forming composition comprising: (A) composite oxide fine particles with a mean particle diameter of 1 to 200 nm, containing titanium, tin and optionally silicon, and with a rutile-type crystal structure, (B) an organosilicon compound represented by the following formula (I) and/or a hydrolyzate thereof, R 1 a R 2 b Si(OR 3 ) 4−(a+b) (I) wherein R 1 is an alkyl group having 1 to 6 carbon atoms, an organic group having 8 or less carbon atoms containing a vinyl group, an organic group having 8 or less carbon atoms containing an epoxy group, an organic group having 8 or less carbon atoms containing a methacryloxy group, an organic group having 1 to 5 carbon atoms containing a mercapto group, or an organic group having 1 to 5 carbon atoms containing an amino group, R 2 is an alkyl group having 1 to 3 carbon atoms, a cycloalkyl group having 3 carbon atoms or a halogenated alkyl group having 1 to 3 carbon atoms, or an allyl group, R 3 is an alkyl group having 1 to 4 carbon atoms or a cycloalkyl group having 3 to 4 carbon atoms, a is 0 or 1, and b is 0, 1 or 2, and (C) a cyanamide derivative compound.