Biologically useful polymer preparations
AssigneeDynatech Corporation
InventorsJudith P. Kitchell, Stanton R. de Riel
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Abstract
Described and claimed are biologically useful crosslinked copolymers of vinyl pyrrolidone and allylamine suitable for various preventative and therapeutic applications to intact or injured skin. Coatings of these copolymers, either preformed or prepared in situ on the skin may deliver medicaments to the skin, may serve as an iontophoretic medium, may provide electrical contact with the body, may regulate or control moisture loss from injured integument. Monolithic devices for the delivery of pharmaceutically active agents within living tissue may be formulated from these copolymers.
Claims6
A biologically useful polymer preparation prepared by
- A. mixing a first solution comprising 20-60% (weight per volume) copolymer comprising vinyl pyrrolidone and allylamine in a ratio of 10 parts by weight vinyl pyrrolidone to 0-1 part by weight allylamine with a second solution comprising glutaraldehyde to give a final concentration of 0.04-3.6% (weight per volume) glutaraldehyde;
- and
- B. forming a film from the mixture of step A.
Dependencies are inferred from the claim text.