Patent ID: 7566760
Filing Date: 2009-07-28
Classification: C08F

Abstract:
1. A process for preparing an aqueous polymer dispersion, by polymerizing as components, one or more olefins in an aqueous medium in the presence of one or more dispersants, and, optionally, of organic solvents, said components forming a miniemulsion having an average droplet diameter ≦1000 nm, said process comprising catalyzing, in the miniemulsion, the polymerization of said one or more olefins in the presence of one or more metal complex compounds of the formula I: wherein the substituents and indices have the following meanings: M is a transition metal from groups 7 to 10 of the periodic table of the elements; L L X: is CR or nitrogen (N); R: is hydrogen, Y: is OH, oxygen, sulfur, N—R N: is nitrogen; R R and wherein at least one of the radicals R wherein Z is an electron-withdrawing group, and n is an integer from 1 to 5.