Water-soluble polyurethane and use thereof to thicken water-based systems such as water-based paints
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United States of America Patent
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Mar 5, 1996
Grant Date -
N/A
app pub date -
Mar 16, 1994
filing date -
Sep 15, 1992
priority date (Note) -
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Abstract
A water-soluble polyurethane, including a polymer backbone; end groups provided on the ends of the polymer backbone and containing water-soluble oxyethylene groups having a molecular weight ranging from 400 to 15,000, and groups pendant from the polymer backbone and containing hydrocarbon groups having 8-22 carbon atoms, in a number of at least 0.1 per urethane bond. The water-soluble polyurethane has moderate viscosities in aqueous solution and is especially useful as a thickener, for instance, in alkyd-or latex-based paints.
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Cited Art Landscape
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