Hydrophilic polyether polyurethanes containing carboxylic acid
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United States of America Patent
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Oct 10, 2000
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N/A
app pub date -
Sep 20, 1996
filing date -
Sep 20, 1996
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Expired
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Abstract
An improved polyurethane is prepared by reacting a diol, an organic diisocyanate and a carboxylic acid with a critical selection of the amount of water in the reaction mixture. The polyurethane has improved adhesion, hydrophilicty and strength. The polymer has improved feel, and washability. Solutions of the polymer have low viscosity in aqueous solutions.
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