WATER BORNE PRESSURE SENSITIVE ADHESIVE COMPOSITIONS DERIVED FROM COPOLYMERS OF HIGHER VINYL ESTERS

摘要

The present invention is directed to improved aqueous based pressure sensitiveadhesive emulsion polymers. Conventional emulsion based pressure sensitiveadhesives are comprised of a copolymer comprised of polymerized units of acrylic estersand ethylenically unsaturated monomers, the copolymer having a Tg of from -15 to-70°C. The improvement in the aqueous based, emulsion polymerized pressuresensitive adhesives resides in the incorporation of a vinyl C8-13 ester of a neo-acid intothe copolymer present in the pressure sensitive adhesives. Such vinyl ester is formedfrom a mixture of propylene oligomers and such vinyl ester is represented by thechemical formula:C8-13H17-27C02GH=CH2N:RLB186P5499.apl