A resin composition and food packaging materials formed therefrom

摘要

An article suitable for packaging food which comprises at least one layer of 3 to 90 microns thickness which comprises: i) a composition comprising a polyvinyl alcohol resin having a degree of saponification of 60 to 95 mole% (A); and ii) an alkylene glycol or hydroxy acid monomer or a polymer thereof, having a carbon dioxide/oxygen solubility ratio (SCO2/SO2) of 30 or greater (B1); B1 being present in an amount of from 3 weight parts of B1 per 100 weight parts of A to the saturated solubility of B1 in A; and a resin composition which comprises: (i) a polyvinyl alcohol resin having a degree of saponification of 60 to 95 mole% (A); (ii) an alkylene glycol monomer or polymer thereof having a carbon dioxide/oxygen solubility ratio (SCO2/SO2) of 30 or greater (B2); and (iii) a saponified ethylene/vinylacetate copolymer resin (C); the blending ratio of B2 being from 3 weight parts of B2 to 100 weight parts of A to the saturated solubility of B2 in A and the blending ratio of C being from 20 to 50 weight parts of C to 100 weight parts of an aggregate of A and C. the blending ratio of B2 being from 3 weight parts of B2 to 100 weight parts of A to the saturated solubility of B2 in A and the blending ratio of C being from 20 to 50 weight parts of C to 100 weight parts of an aggregate of A and C.