Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Patent
1998-03-17
1999-10-12
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, A61F 1302
Patent
active
059651547
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.
REFERENCES:
patent: 5536768 (1996-07-01), Kantner et al.
patent: 5593684 (1997-01-01), Baker et al.
patent: 5626866 (1997-05-01), Ebert et al.
patent: 5662991 (1997-09-01), Smolik et al.
Channavajjala Lakshmi
Page Thurman K.
PLC Holding, L.L.C.
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