Patent ID: 6500888
Filing Date: 2002-12-31
Classification: C08J

Abstract:
Ethylene based copolymer pellets having an acid content at least 5% by weight and having an effective amount of a surface coating to increase the copolymer stick temperature above 25Â° C.;wherein the ethylene copolymer comprises repeating polymerized units of (a) at least 50% by weight, based on the weight of the copolymer, of ethylene, (b) 5 to 30% by weight, based on the weight of the copolymer, of an ethylenically unsaturated acid selected from the group consisting of acrylic acid and methacrylic acid; and (c) up to 40% by weight, based on the weight of the copolymer, of an alkyl (meth)acrylate, wherein the copolymer has 0-100% of the acid groups neutralized with metal ion selected from the group consisting of zinc, magnesium, sodium and lithium and the surface coating comprises an effective amount of a metal salt of an aliphatic acid having 12 to 22 carbon atoms to increase the stick temperature to above 25Â° C.