Process for preparing multifunctional acrylate-modified vinyl ester-alkyl acrylate/methacrylate copolymer coagulum-free latex

摘要

A process for preparing multifunctional acrylate modified- vinyl ester- alkyl acrylate/methacrylate copolymer coagulum-free latex is disclosed which comprises emulsion-polymerizing a non-pre-emulsified mixture of: PP(I) FROM ABOUT 40% TO ABOUT 95% BASED ON TOTAL WEIGHT OF COMONOMERS OF A VINYL ESTER,PP(II) FROM ABOUT 5% TO ABOUT 35% BASED ON TOTAL WEIGHT OF COMONOMERS OF AN ESTER DERIVED FROM THE REACTION OF A MONOHYDRIC ALCOHOL AND ACRYLIC ACID OR METHACRYLIC ACID, ANDPP(III) FROM ABOUT 0.5% TO ABOUT 10. 0% BASED ON TOTAL WEIGHT OF COMONOMERS OF AN ESTER DERIVED FROM THE REACTION OF A POLYHYDRIC ALCOHOL AND AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID, THERE BEING AT LEAST TWO HYDROXYL GROUPS OF THE ALCOHOL ESTERIFIED WITH THE ACID,PP IN THE PRESENCE OF A FREE RADICAL POLYMERIZATION CATALYST AND A CHAIN TRANSFER AGENT.