Ethylene-vinyl alcohol copolymer composition and its use

摘要

Composition (I) based on an ethylene/vinyl alcohol (EVOH) copolymer comprises: (a) EVOH copolymer; (b) polyethylene (II); and (c) a graft copolymer prepared by cografting a polyethylene (IIIa) and a polyethylene (IIIb) with an unsaturated carboxylic acid or a functional derivative of such an acid. Composition (I) based on an ethylene/vinyl alcohol (EVOH) copolymer comprises: (a) 50-98 wt.% EVOH copolymer; (b) 1-50 wt.% polyethylene (II); and (c) 1-15 wt.% of a graft copolymer prepared by cografting a polyethylene (IIIa) and a polyethylene (IIIb) with an unsaturated carboxylic acid or a functional derivative of such an acid, where (IIIa) and (IIIb) are selected from elastomers, very low density polyethylenes and metallocene polyethylenes. Independent claims are also included for: (1) A multilayer structure comprising a layer of (I); (2) packages, bottles or containers comprising the multilayer structure of (1).