Polymer latices comprising alpha, betaethylenically unsaturated monocarboxylic acids and copolymerizable monomers

Claim 1

A PARTICULATE INTERPOLYMER COMPRISED OF AN EMULSION POLYMERIZED PRODUCT OF (A) AN ALPHA,BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, AND (B) AND ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC HYDROCARBONS CONTAINING AT LAST ONE VINYLIDENE GROUP, VINYL HALIDES, VINYLIDENE HALIDES ESTERS OF MONOCARBOXYLIC ACIDS CONTAINING AT LEAST ONE VINYLIDENE GROUP WITH 1-18 CARBON ATOM MONOHYDRIC ALCOHOLS, AMIDES AND NITRILES OF MONOCARBOXYLIC ACIDS, CONTAINING AT LEAST ONE VINYLIDENE GROUP, VINYL ESTERS OF 1-18 CARBON MONOCARBOXYLIC ACIDS, DI-ESTERS OF MALEIC ACID AND FUMARIC ACID WITH 1-18 CARBON ATOM MONOHYDRIC ALCOHOLS AND MIXTURES THEREOF WHICH IS INTERPOLYMERIZABLE WITH SAID ALPHA,BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, WHEREIN THE INTERPOLYMER PARTICLES BASED ON A TOTAL INTERPOLYMER WEIGHT OF 100 PARTS CONSISTS OF (1) AN INNER CORE COMPRISING 20-90 PARTS OF (B), AND (2) AN OUTER PARTS OF (A) WITH 94-60 PARTS OF (B), AND (2) AND OUTER SHELL AROUND SAID CORE COMPRISING, CORRESPONDINGLY, 80-10 PARTS OF AN INTERPOLYMER OF 0-3 PARTS OF (A) WITH 100-97 PARTS OF (B); SAID POLYMER PARTICLES HAVING A PARTICLE SIZE OF 0.01-5.0 MICRONS.