Abstract: The present invention provides a multilayer structure including a semi-aromatic polyamide layer and an ethylene-vinyl alcohol copolymer layer, having a high gas barrier property after heat sterilization treatment and few curls, and easy to laminate, to be subjected to bag making processing and to be filled with contents. The multilayer structure according to the present invention includes the semi-aromatic polyamide layer, the ethylene-vinyl alcohol copolymer layer, and a thermoplastic resin layer between the semi-aromatic polyamide layer and the ethylene-vinyl alcohol copolymer layer.

Abstract: A polymeric composition including a first copolymer of ethylene and a higher .alpha.-olefin having 3 to 12 carbon atoms, said first copolymer having a density of between 0.880 g/cc. and about 0.949 g/cc. and a melt index of between about 0.01 and about 100, present in the polymeric composition in a concentration of between about 60% and about 95% by weight; and a second copolymer of ethylene-vinyl acetate having a vinyl acetate content of at least about 28% by weight, based on the total weight of the ethylene-vinyl acetate copolymer, said second copolymer present in a concentration of between about 5% and about 40% by weight, said percentages by weight based on the total weight of the polymeric composition. This polymeric composition is particularly useful when fabricated into a film, which has excellent impact strength.

Abstract: A method is disclosed for improving the clarity of polyethylene film containing silica or diatomaceous earth as an anti-blocking agent. The method comprises treating the anti-blocking agent with polyethylene glycol such that sufficient polyethylene glycol is deposited on said anti-blocking agents such that at least 10 parts per million of polyethylene glycol is present in the final blend. Next, the treated anti-blocking agent is added to the polyethylene resin and this blend is formed into a film.

Abstract: A method is disclosed for improving the clarity of polyethylene film containing silica or diatomaceous earth as an anti-blocking agent. The method comprises treating the anti-blocking agent with polyethylene glycol such that sufficient polyethylene glycol is deposited on said anti-blocking agents so that the weight ratio of said polyethylene glycol to said anti-blocking agent is at least about 1:30. Next, the treated anti-blocking agent is added to the polyethylene resin and this blend is formed into a film.