Acrylic polymers, curable film-forming compositions prepared therefrom, and method of mitigating dirt build-up on a substrate
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United States of America Patent
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Sep 1, 2015
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app pub date -
Jun 12, 2014
filing date -
Jun 12, 2014
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Abstract
The present invention is directed to acrylic polymers comprising: (i) hydroxyl functional groups; (ii) polydialkylsiloxane functional groups; and (iii) silica nanoparticles that are chemically bonded to and pendant from the acrylic polymer. The present invention is further directed to curable film-forming compositions comprising acrylic polymers, and to coated substrates comprising the curable film-forming composition applied to at least one surface of the substrates. The present invention is also drawn to methods of mitigating dirt build-up on a substrate, comprising applying to at least a portion of the substrate the curable film-forming composition described above and at least partially curing the curable film-forming composition.
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