PROCESS FOR PREPARING AQUEOUS DISPERSIONS
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United States of America Patent
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Issued Date -
Sep 10, 2015
app pub date -
Nov 27, 2012
filing date -
Sep 28, 2012
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Abandoned
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Abstract
The invention discloses a process for preparing aqueous dispersions comprising the components (a) and (b) and optionally (c) or (d) or both, (a) a copolymer consisting of free-radical-polymerized C1- to C4-esters of acrylic or methacrylic acid and alkyl(meth)acrylate monomers with tertiary ammonium groups in the alkyl side groups, (b) 5 to 25% by weight, based on (a), of a C12- to C18-monocarboxylic acid or a C12- to C18-alcohol, (c) 0 to 10% by weight based on (a) of a dicarboxylic acid having 3 to 10 carbon atoms, (d) 0 to 20% by weight, based on (a), of an emulsifier having an HLB of at least 14 by dispersing the components in water where the water has a temperature of more than 40 and up to 85° C., where the solid content of the dispersion is from 5 to 40% by weight and where a clear colloidal dispersion is obtained in less than 30 min.
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