Patent ID: 6150470
Filing Date: 2000-11-21
Classification: A63B,C08L,Y10S

Abstract:
A composition comprising a neutralized ethylene-acid copolymer, a neutralized blend of ethylene-acid copolymers or a blend of neutralized ethylene-acid copolymers wherein the acid is methacrylic acid or acrylic acid and wherein the average weight percent acid in the composition before neutralization is from 16 to 25%, and wherein at least 30% of the acid groups in the composition are neutralized with metal ions, comprising:a) 20-90% equivalents of lithium ions;b) 5-40% equivalents of zinc ions; andc) 0-55% equivalents of sodium ions based on the total number of equivalents of metal ions present, with the proviso that the coefficient of restitution is greater than 0.700.