film suitable for packaging applications vacuum type second skin and vacuum packaging second type easy open skin obtained with the same

摘要

A suitable multilayer film for use in VSP applications comprising a first outer sealant layer comprising a blend of from 10 to 90% by weight of LDPE and from 90 to 10% by weight of an ethylene / (meth) acrylic optionally neutralized and a second adjacent said outer layer coat consisting of a frangible polymer blend, wherein the fragile mixture consists of: 35 to 83% by weight of an ethylene / (meth) acrylic acid optionally neutralized, of from 15 to 30% by weight of an ethylene / ethyl modified vinyl and from 2 to 50% by weight of a polybutylene or 30 to 70% by weight of an ethylene / vinyl acetate copolymer high in vinyl acetate, 15 to 50% by weight of a polybutene, and from 15 to 50% by weight of an ethylene / (meth) acrylic acid optionally neutralized or about 8 to about 30 wt% modified polypropylene grafting a c acid unsaturated arboxílico, from 0 to about 20% by weight of polybutene and the remainder to 100% by weight of ethylene / (meth) acrylic acid neutralized.