Polyvinyl alcohol compositions prepared by crosslinking in a fre

Details Polyvinyl alcohol compositions prepared by crosslinking in a fre Polyvinyl alcohol compositions prepared by crosslinking in a fre

1997-12-23

1999-10-26

Kulkosky, Peter F.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

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

5147722, 525 61, A61K 4734, A61F 1300

Patent

active

059723750

ABSTRACT:
The invention provides a translucent, water-insoluble hydrogel composition and methods of making it. The hydrogel composition comprises a polyvinyl alcohol polymer and a complexing agent which are physically crosslinked to form a semi-crystalline polyvinyl alcohol-complexing agent polymer complex. This is achieved by:

REFERENCES:
patent: 4988761 (1991-01-01), Ikada et al.
patent: 5260066 (1993-11-01), Wood et al.
patent: 5277915 (1994-01-01), Provonchee et al.
patent: 5679371 (1997-10-01), Tanihara et al.
Abstract FR: 2596404 Oct. 2, 1987.
Abstract JP 7536286 Mar. 26, 1975 Kuraray K K.
Abstract JP 56-155203 Dec. 1981.

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