Latex paint with microemulsion modifier and process for their preparation.

摘要

AQUEOUS COATING A PAINT DRYING AT ROOM TEMPERATURE BASED ON POLYMER MATRIX IS an addition copolymer CONTAINING an oligomer selected from a polyurethane or a polyester having a Tg below -20 (DEGREES) CY A number average molecular weight MIDDLE between 200 and 20,000, wherein the coating NO coalescing solvents ORGANICOS. CONTAINS POLYMER MATRIX ethylenic monomers copolymerized emulsion. In a preferred process, the oligomer is produced by forming an aqueous oligomer MICROPREEMULSION WATER-BASED MIXING WITH THE USE OF HIGH STRENGTH TANGENCIAL oligomer AND WATER CONTAINING THAN 40% to 70% BY WEIGHT OF oligomer YA temperatures between 20 (DEGREES) CY 100 (DEGREES) C FOR A preemulsion AQUEOUS CONTAINING A SIZE OF ORGANIC PHASE DROPS less than 10 microns. THE polymer binder can also be produced by mixing the oligomer WITH ethylenic monomers to form an organic monomer MIXTURE AND oligomers produce an aqueous microdispersion WITH Droplet size PHASE MIXING ORGANICA less than 5 micron copolymerize MONOMER to produce a polymer of vinyl acetate CONTAINING THE oligomer. The polymeric binder system contains ORGANIC SOLVENT COALESCING.