Patent ID: 8153707

Claim:
A film-forming composition comprising a water-based film-forming polymer, and a coalescent aid comprising a fatty acid ester of an ethylene glycol, propylene glycol, or ethylene-propylene glycol of the following formula: R 1 COO[(EO) x (PO) y ] z H wherein R 1 CO is a linear saturated aliphatic acyl group and wherein R 1 comprises at least about 80% C 11 -C 13 , EO is —CH 2 CH 2 O—, PO is —CH 2 CH(CH 3 )O— or —CH(CH 3 )CH 2 O— or a combination thereof, where the acyl radical is bonded to a carbon atom of the EO or PO radical, and x=0 to about 5, y=about 0 to about 5, the sum of x and y is equal or greater than 0.5, z=1 to about 5, and (x+y)z is less than or equal to 6.