Softening non-swelling polyurethane
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United States of America Patent
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-
Nov 30, 1993
Grant Date -
N/A
app pub date -
Oct 26, 1992
filing date -
Oct 26, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A non-yellowing, elastomeric polyurethane is made from a non-aromatic diisocyanate, a diol chain extender, a polyglycol and an aminodiol chain extender. The polyurethane is stable to sterilizing radiation, is made without any processing aids or toxic catalysts, and softens without swelling up to 95% when contacted with an aqueous liquid.
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Cited Art Landscape
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