Acrylic polymers containing hydrolyzable moieties from...

C - Chemistry – Metallurgy – 08 – F

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117/184, 400/530

C08F 8/42 (2006.01) C08G 77/42 (2006.01) C08G 77/442 (2006.01) C09D 143/04 (2006.01)

Patent

CA 1266940

Abstract of the Disclosure Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: Image and Image wherein each R independently is selected from the group of moieties consisting of Y, hydrogen, a C1-C10 group joined to Si through an Si-C linkage, and OR7 in which R7 represents alkyl having at least 4 carbon atoms, aryl, alkylaryl, arylalkyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group. The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in a range of from 40 to 667. Preferred acrylic resin compositions of the invention can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees Celsius within 3 hours. Disclosed is a method for producing the ungelled acrylic resin composition. Also disclosed is a nonaqueous composition, particularly a nonaqueous coating composition, containing the ungelled acrylic resin composition. Preferred coating compositions containing an ungelled acrylic resin composition can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees C within 3 hours.

507730

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