Fluorinated polyetherurethanes and medical devices therefrom
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United States of America Patent
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Jun 19, 1990
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N/A
app pub date -
Mar 20, 1989
filing date -
Mar 28, 1988
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Expired
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Abstract
Non-blocking, hemocompatible, thermoplastic, fluorinated polyetherurethanes and a method for their preparation from fluorinated polyether glycols, isocyanates, chain extenders and a non-fluorinated polyol. The method includes two steps in which the fluorinated glycol is reacted initially with the diisocyanate to give a prepolymer having terminal isocyanate groups, and the prepolymer is then reacted with the extender and non-fluorinated polyol. Medical devices are fabricated from the fluorinated polyetherurethane.
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