Patent ID: 7101921

Claim:
A polymer composition comprising polymer particles dispersed in an aqueous medium, wherein said polymer particles comprise, based on the weight of said polymer particles: a) from 10 to 70 weight % first polymer; and b) from 30 to 90 weight % second polymer; wherein said first polymer has a Tg in the range of 15° C. to less than 30° C. and comprises as polymerized units, based on the weight of said first polymer, from: i) 85 to 99.9 weight % comonomer, ii) 0 to 5 weight % anionic monomer, and iii) 0.1 to 10 weight % multiethylenically unsaturated monomer, wherein said second polymer has a Tg in the range of −5° C. to 15° C. and comprises as polymerized units, based on the weight of said second polymer, from: i) 70 to 99 weight % comonomer, ii) 0 to 10 weight % anionic monomer, and iii) 1 to 20 weight % crosslinking monomer; and wherein the polymer composition comprises from 0.01 to less than 2 weight % volatile organic compounds, based on the weight of said polymer composition, and the polymer composition has degree of cracking of at least 6 and a hardness value of at least 65 seconds.