Phosphonic acid polymers
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United States of America Patent
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Nov 9, 1999
Issued Date -
N/A
app pub date -
Sep 24, 1997
filing date -
Dec 21, 1995
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Expired
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Abstract
Phosphonic acid polymers are prepared from di- or polyphosphonic acids having one or more unsaturated C.dbd.C bonds (e.g. vinylidene-1,1-diphosphonic acid), either as homopolymers or as higher polymers with at least one further compound having unsaturated C.dbd.C bonds (e.g. acrylic acid). The polymers can be used as, or in connection with, flame-retardants, corrosion inhibitors, coatings, cements and ion exchange resins.
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