Multilayer films which can be welded by high frequency

Details Multilayer films which can be welded by high frequency Multilayer films which can be welded by high frequency

1997-05-13

1999-11-16

Kiliman, Leszek

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 367, 4284744, 4284758, 4284755, 428522, 428520, B29D 2200

Patent

active

059853905

ABSTRACT:
The invention relates to a multilayer film, which is useful for making flexible sachets, comprising (i) a barrier film based on a mixture of polyamide and of polyolefin, and (ii), on at least one of its faces, a film based on a copolymer of ethylene and of an unsaturated ester, which can be welded by high frequency.
The invention is useful for making flexible sachets of detergents, of bleach or of textile softeners.

REFERENCES:
patent: 4758463 (1988-07-01), Vicik et al.
patent: 5070145 (1991-12-01), Guerdoux
patent: 5135785 (1992-08-01), Millon
patent: 5342886 (1994-08-01), Glotin et al.

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