| abstract |
The present invention is a composition comprising a) a stable aqueous dispersion of polymer particles having one or more structural units of i) a polyurea macromer; and ii) an acrylate, a methacrylate, a vinyl ester, or a styrene monomer, or a combination thereof; and/or b) an aqueous mixture of a i) polyurea macromer polymer particles; and b) acrylate, methacrylate, vinyl ester, or styrenic polymer particles, or a combination thereof, wherein the polyurea macromer is characterized by the following formula I: n n n n n n n n n n where A 1 , A 2 , R 1 , R 2 , and R 3 are as defined herein. Compositions prepared using the compound of the present invention can be used to form coatings with excellent balance of low temperature film formation, hardness, and flexibility. |