COATING COMPOSITIONS CURABLE AT LOW TEMPERATURES AND COATINGS FORMED THEREFROM

A coating composition includes (a) a melamine resin having imino and methylol functional groups that together comprise 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran...

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Bibliographische Detailangaben
Hauptverfasser: WANG, Wei, LI, Linlin, HUMBERT, Leigh Ann, LAMERS, Paul H, FALER, Dennis L, FENN, David R
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A coating composition includes (a) a melamine resin having imino and methylol functional groups that together comprise 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran and a carboxylic acid or anhydride thereof. The polytetrahydrofuran includes greater than 20 weight % of the components that form the polymer (b) and the carboxylic acid or anhydride thereof includes greater than 5 weight % of the components that form the polymer (b). The polymer (b) has an acid value of at least 15 based on the total resin solids of the polymer (b).