Polymeric dispersion stabilizers for dispersions of synthetic polymers in organic liquids

Claim 1

A STABLE DISPERSION IN AN ORGANIC LIQUID OF PARTICLES OF AN ADDITION POLYMER WHICH ARE INSOLLUBLE IN THE ORGANIC LIQUID, SAID DISPERSION BEING STABILIZED BY A COPOLYMER WHICH IS THE PJRODUCT OBTAINED BY (U) REACTING BY A CONDENSATION REACTION A COMPOUND (A) CONTAINING A POLYMERIC COMPONENT AND A GROUP CAPABLE OF CONDENSATION REACTION WITH A COMPOUND (B) CONTAINING BOTH A COMPLEMENTARY CONDENSATION REACTIVE GROUP AND AN ETHYLENICALLY UNSATURATED GROUP TO PRODUCE A PRECURSOR (C) COMPRISING A POLYMERIC COMPONENT HAVING AT LEAST ONE SUCH UNSATURATED GROUP ATTACHED THERETO AND (II) COPOLYMERIZING ETHYLENICALLY UNSATURATED MONOMER (D) WITH THE UNSATURATED GROUP OF PRECURSOR (C) TO ATTACH THERETO, ON AVERAGE, NOT MORE THAN TWO ADDITION POLYMERIC COMPONENTS OF (D) OF DIFFERENT DEGREE OF POLARITY FROM THE JPOLYMERIC COMPONENT PROVIDED BY COMPOUND (A) SO THAT ONE POLYMERIC COMPONENT IS SOLVATED BY THE ORGANIC LIQUID AND THE OTHER POLYMERIC COMPONENT OF DIFFERENT DEGREE OF JPOLARITY IS NOT SOLVATED BY THE ORGANIC LIQUID AND BECOMES ASSOCIATED WITH THE DISPERSE POLYMER.