Adhesive matrix type transdermal patch and method of manufacturi

Details Adhesive matrix type transdermal patch and method of manufacturi Adhesive matrix type transdermal patch and method of manufacturi

1998-06-26

1999-09-28

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Web, sheet or filament bases; compositions of bandages; or...

424447, 424448, 424401, 514474, 514458, A61F 1302

Patent

active

059584475

ABSTRACT:
The invention provides adhesive matrix type transdermal patches and methods for manufacturing the patches. More specifically, the invention utilizes ordinary, prefabricated, commercially available, pressure-sensitive adhesive tapes with skin compatible adhesives, as the structural part of the patch. The adhesive matrix layer of the tape is loaded with the desirable active substances either by embedding, in the case of powders, the active substances in an adhesive matrix layer by the application of heat or pressure, or by a diffusion process for active substances comprising liquids/semi-liquids are carried in located in an embossed release liner or backing layer, which are contact laminated to the adhesive matrix by pressure, or by the utilizing of conventional printing processes to print a half-tone pattern of a bioactive liquid on the adhesive matrix.

REFERENCES:
patent: 4915950 (1990-04-01), Miranda et al.
patent: 5132115 (1992-07-01), Wolter et al.
patent: 5785978 (1998-07-01), Porter et al.

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