MODIFIED POLYMERS BASED ON A GRAFTED POLYESTER AND PROCESS FOR PREPARATION THEREOF

摘要

Modified polymers based on a grafted polyester comprising: a sulphonate hydrodispersible polyester-derived core, grafts consisting of copolymer patterns derived from at least one vinyl monomer and at least one unsaturated ethylene organopolysiloxane soluble in said vinyl monomer(s). Said polymers are prepared by: pre-emulsion in water of a organopolysiloxane solution in one or some vinyl monomer(s), then the emulsion obtained is added to an aqueous solution of a hydrodispersible sulphonate polyester and polymerized in the presence of a hydrosoluble or hydrodispersible activator. They may be used as coating agents.