Patent ID: 6716941
Filing Date: 2004-04-06
Classification: C08F

Abstract:
A process for forming an ethylene-vinyl acetate polymer dispersion comprising polymerizing a monomer mixture comprising vinyl acetate and ethylene in a batch process, in the presence of a surfactant-free stabilizing system consisting of polyvinyl alcohol, and in the presence of from 0 to 10 percent by weight of a seed polymer based on the weight of the dispersion, to form an ethylene-vinyl acetate polymer dispersion, wherein said copolymer dispersion has a solids level of greater than 65 percent by weight, and a viscosity of less than 5000 mPaÂ·s when measured at 55 percent solids at 25Â° C., and wherein all monomer, polyvinyl alcohol, and seed polymer is in the initial reactor charge.