High viscosity blends and coatings of an ionomer and poly(vinyl alcohol)

摘要

Disclosed are compositions comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by (i) a hydrolysis level from 85 to 93 mole % and a 4 weight % aqueous viscosity of 16 to 75 centipoise (cP); and an ionomer comprising a parent acid copolymer that comprises ethylene and 18 to 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from 200 to 1000 g/10 min., wherein 50% to 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Articles and multilayer structures comprising the blend composition on a substrate and methods for their preparation are also disclosed.