Thickening agent comprising aqueous dispersion of graft-copolymerized starch
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United States of America Patent
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Oct 14, 1997
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N/A
app pub date -
Jun 20, 1996
filing date -
Apr 16, 1992
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Expired
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Abstract
The invention relates to a polymer dispersion, by means of which the rheological properties and structure of various liquid and flowing mixtures may be adjusted. The dispersion is prepared by radical polymerizing, into a water soluble chain backbone polymer or into such a polymer brought water soluble, in a water solution at least one .alpha.-, .beta.-unsaturated carboxyl acid containing 3-8 carbons as well as at least one to a limited amount unsaturated monomer. The chain backbone polymer is preferably a starch derivative.
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