Patent ID: 7501470

Claim:
A latex composition comprising (A) an emulsion polymerizable unsaturated monomer; (B) water; (C) a free radical or redox initiator; and (D) a polymerization surfactant comprising at least one compound having a formula (I): Z-Y—[CH(R 3 )—CH(R 4 )—O] n —[CH 2 CH 2 —O] m —R 5 (I) wherein Z represents a group having the following formula: wherein: R 3 and R 4 , which may be identical or different, represent hydrogen or a linear, branched or cyclic, saturated or unsaturated C 1 -C 22 hydrocarbon radical, provided that at least one of the radicals R 3 R 4 other than hydrogen; R 5 is —SO 3 M or —(CH 2 ) z —SO 3 M; Y represents —CH 2 —C(R 1 )(R 2 )—O— or —O—CH(R′ 1 )—CH(R′ 2 )—O—, wherein R 1 , R 2 , R′ 1 , and R′ 2 , which may be identical or different, represent hydrogen or a linear, branched or cyclic, saturated or unsaturated C 1 -C 22 hydrocarbon radical; z is in the range of 1 to 6; M represents hydrogen, an alkali metal or an ammonium function N(R)4+, in which R, which may or may not be identical, represents hydrogen or a linear, branched or cyclic, saturated or unsaturated C 1 -C 22 hydrocarbon radical, which may be hydroxylated; n is an integer or fractional number from 0 to 20 inclusive; and m is an integer or fractional number from 2 to 80 inclusive.