AQUEOUS BINDER SYSTEMS AND THEIR USE IN PRODUCING COATING COMPOSITIONS
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Mar 12, 2013
filing date -
Mar 21, 2012
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Abandoned
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Abstract
A binder mixture is described comprising: an aqueous copolymer dispersion which has a glass transition temperature, Tg, of less than 10° C. and which is prepared by emulsion polymerization of a monomer mixture comprising: (i) at least 60% by weight, based on the total amount of monomers, of at least one vinyl ester; (ii) from 15 to 30% by weight, based on the total amount of monomers, of ethylene; (iii) from 0.05 to 5% by weight, based on the total amount of monomers, of an ethylenically unsaturated carboxylic acid having at least 4 carbon atoms; and (iv) from 0.05 to 5% by weight, based on the total amount of monomers, of an ethylenically unsaturated sulfonic acid or salt thereof.
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