Gels in the form of highly hydrated self-supporting film, the pr

Details Gels in the form of highly hydrated self-supporting film, the pr Gels in the form of highly hydrated self-supporting film, the pr

1995-06-07

1998-01-20

Webman, Edward J.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

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

424488, 424DIG13, 602 41, 602 48, 602 49, 602 52, 2523153, 2523154, 514777, 514779, 514944, A61K 970, A61K 4736, A61L 1528, A61L 1564

Patent

active

057098778

ABSTRACT:
This invention provides new gels in the form of highly hydrated self-supporting film, comprising one or more alkaline alginates, an alkaline earth alginate, a polyalcohol and a natural, synthetic or semisynthetic polymer of hydrophilic nature, and their preparation process. These polysaccharide-matrix gels in highly hydrated self-supporting film form are suitable for use as covering and protection materials for cutaneous lesions and/or pathologies in that they are obtainable in self-supporting form in the desired thickness, are transparent, flexible, have good mechanical characteristics, are adaptable to the lesion surface without strongly adhering to it, and are permeable to gas but are impermeable to liquids and bacteria; one or more pharmacologically active substances can also be incorporated in the gel.

REFERENCES:
patent: 2512616 (1950-06-01), Eberl et al.
patent: 3640741 (1972-02-01), Etes
patent: 4391799 (1983-07-01), Mason, Jr. et al.
patent: 4443538 (1984-04-01), Cheetham
patent: 4524064 (1985-06-01), Nambu
patent: 4844902 (1989-07-01), Grohe
patent: 4948575 (1990-08-01), Cole et al.
patent: 5071741 (1991-12-01), Brockbank
patent: 5194253 (1993-03-01), Garrido

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