Composite film for surface treatment and corresponding processes

Details Composite film for surface treatment and corresponding processes Composite film for surface treatment and corresponding processes

1990-08-08

1992-03-31

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...

424443, 424448, A61F 1300

Patent

active

051006723

ABSTRACT:
The composite film according to the invention consists of an occlusive layer, and a reservoir layer consisting of a silicone polymer matrix containing a cosmetically and/or pharmaceutically active gelled aqueous phase in the form of dispersed inclusions, the whole being coupled with a removable protection. The matrix comprises a web on the side opposite the occlusive layer. This film can be applied to the skin to cause cosmetically or pharmaceutically active substances to enter via transcutaneous effects. The invention also relates to processes for the preparation of these films.

REFERENCES:
patent: 4687481 (1987-08-01), Nuwayser
patent: 4695464 (1987-09-01), Alderman
patent: 4749574 (1988-06-01), Ueda
patent: 4752272 (1988-02-01), Gale
patent: 4784857 (1988-11-01), Berry

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