Multi-layer polyamide-based packaging casing

Stock material or miscellaneous articles – Hollow or container type article – Flexible food casing

Patent

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Details

428 352, 428200, 4284747, 4284749, 4284752, 4284761, 1381181, 426105, 426127, 426129, B65D 8572, B65D 8134

Patent

active

054806909

ABSTRACT:
The biaxially stretch-oriented multi-layer tubular packaging casing for packaging pasty products, in particular the artificial sausage casing, includes a barrier layer having a reduced permeability to oxygen, an outer layer and an inner layer. The barrier layer comprises a partially aromatic polyamide and/or copolyamide, the outer and inner layers an aliphatic polyamide or copolyamide or a polymer mixture of at least one of the two compounds.

REFERENCES:
patent: 4557780 (1985-12-01), Newsome
patent: 4647483 (1987-03-01), Tse
patent: 4883693 (1989-11-01), Ohya
patent: 4908272 (1990-03-01), Harada et al.
patent: 4911963 (1990-03-01), Lustig
patent: 5326613 (1994-07-01), Stenger

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