AQUEOUS FILM-FORMING COMPOSITIONS CONTAINING REDUCED LEVELS OF VOLATILE ORGANIC COMPOUNDS
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United States of America Patent
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Issued Date -
May 1, 2008
app pub date -
Oct 30, 2006
filing date -
Oct 30, 2006
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Abandoned
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Abstract
In addition to acting as effective plasticizers, benzoic acid ester combinations comprising diesters of glycols and at least one of the corresponding monoesters within a specified concentration range are unique in their ability to act as coalescents for aqueous polymer compositions, thereby replacing more volatile organic compounds such as diols, glycols and esters of mono- and dihydric alcohols and benzoates of monohydric alcohols containing 8-10 carbon atoms. Within a preferred concentration range the benzoate combinations impart additional desirable properties to films formed from the polymer composition. These combinations can replace at least a portion of the more volatile organic compounds without any decrease in coalescing ability of the polymers present in the composition.
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