Multilayer barrier film for transdermal drug delivery system and

Details Multilayer barrier film for transdermal drug delivery system and Multilayer barrier film for transdermal drug delivery system and

1994-03-23

1996-10-22

Nold, Charles

Stock material or miscellaneous articles

Hollow or container type article

428483, 428416, 4284242, 4284248, 604332, 604338, 6048901, 424443, 424444, 424445, B32B 2732

Patent

active

055674887

ABSTRACT:
An oxygen and moisture impermeable multilayer barrier film is provided including a barrier layer comprising a homopolymer of vinylidene chloride or a copolymer of vinylidene chloride and vinyl chloride or methyl methacrylate. The barrier layer is coextruded with or laminated to at least one heat sealable skin layer comprising a thermoplastic polyurethane, a substantially linear copolymer of ethylene and an .alpha.-olefin, or a homogeneously-branched linear olefin resin to form the barrier film. The multilayer film may be used for reusable ostomy bags, for systems for the transdermal delivery of drugs, and for heat sealable bags used in packaging.

REFERENCES:
patent: 5271940 (1993-12-01), Gleary
Document No. 290014 Date Oct. 1988 Research Disclosure.

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