Patent ID: 7022257

Claim:
A floor coating composition comprising one or more unsaturated urethane compound(s), which is(are) obtained from an isocyanate compound(s) and a hydroxyl compound(s) as starting materials, wherein at least one of the isocyanate compound(s) and the hydroxyl compound(s) has an unsaturated bond(s), which composition characteristically satisfies the following conditions (1) and (2): (1) at least one of the unsaturated urethane compounds has a poly(alkyleneoxy) group(s) derived from the above-mentioned isocyanate compound and/or hydroxyl compound in a proportion of not less than 2 wt % and not more than 16 wt % of the total amount of the isocyanate compound(s) and the hydroxyl compound(s) used for the unsaturated urethane compound(s), and (2) the value obtained by multiplying the number of moles of each starting material having the unsaturated bond(s) by the number of the unsaturated bond(s) thereof, adding up the obtained values of the starting materials, dividing the resulting value by the total of the number of moles of the starting materials having the unsaturated bond(s) and multiplying the obtained value by the number of isocyanato group of the isocyanate compound(s) is not less than 6, or the value obtained by multiplying the number of moles of each starting material having the unsaturated bond(s) by the number of the unsaturated bond(s) thereof, adding up the obtained values of the starting materials, dividing the resulting value by the total of the number of moles of the starting materials having the unsaturated bond(s) and multiplying the obtained value by the number of hydroxyl group of the hydroxyl compound(s) is not less than 6.