Patent ID: 7009021

Claim:
A paint composition, comprising: a layer organic-inorganic composite; and titanium alkoxide in an amount of from 1 to 50 parts by weight with respect to the layer organic-inorganic composite taken as 100 parts by weight; the layer organic-inorganic composite composed of a laminated substance comprising: a tetrahedral structural layer made of tetrahedral structures whose central atom M′ is Si or a first metallic atom substituting for a part the Si, at least a part of the central atom M′ covalent-bonded to an organic group R involving or free from a polymerizable functional group; and an octahedral structural layer made of octahedral structures whose central atom M is a second metallic atom; and the layer organic-inorganic composite expressed by a general formula, {R n M′O (4−n)/2 } x (MO z/2 )(H 2 O) w , wherein n is an integer of from 1 to 3, x is from 0.5 to 2.0, z is the valence number of the central atom M and is an integer of from 2 to 4, and w is the number of crystal water molecules and is an integer falling in a range of from {(z/2)−1} to (z+1)/2.