Polyurethane-polyvinylpyrrolidone block copolymer and iodine car

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices

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424445, 5253269, A61L 1500, A61L 2900

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active

053023854

ABSTRACT:
A copolymer having free hydroxyl groups is formed from N-vinyl pyrrolidone and allyl alcohol. A polyurethane is formed from a reaction mixture which includes the copolymer, a diisocyanate, a chain extender and a polyglycol. The polyurethane takes up iodine to give a complex useful as an antimicrobial coating on a medical article or as an antimicrobial foam sponge or wound dressing.

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Schenck et al. Journal of Pharmaceutical Sciences, 68, 1505, 1979.

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