The composition of polyamide and process for its production, oxygen barrier film and process for its production, article of multiple layers and process for its production and article molded

摘要

"The composition of polyamide and process for its production, oxygen barrier film and process for its production, article of multiple layers and process for its production and molded article.In the present invention are compositions useful as a barrier polyamide claimed scanning of oxygen that have a good ability to scan of oxygen as well as good characteristicsSuitability for molding blow stretching co injection for the manufacture of PET bottles with good clarity and resistance to delamination.The compositions of polyamide according to the present invention comprise a mixture of polyamide to slow crystallization, comprising (I) a homopolymer or copolymer of semi aromatic polyamideMorpha, or a mixture thereof, and (II) a homopolymer or copolymer of aliphatic semi crystalline polyamide, or a mixture thereof in which the ratio of weight between (I), (II) is in a range fromAbout 99: 1 to about 30: 70; at least one polidieno oxidizable compatible with polyamide and at least one catalyst metal salt oxidation promoter.PET bottles of multiple layers manufactured with polyamide compositions according to the present invention as barrier layer are suitable for the packaging of lifespan in PratEleira prolonged food products and beverages susceptible to oxygen, such as beer and juices.