Eastman Chemical Company

Amy Lee Bolton

Martin Frederick Schick

Thauming Kuo

Scott Ellery George

Gary Michael Stack

Alisa Annette Williams

Jayme Leita

Jayme R Leita

The present invention relates to coatings for a polymer, the coating comprising a diacrylate of an aliphatic diol, a polyacrylate of an aliphatic polyol, a photoinitiator, wherein the average molecular weight between cross-links in the coating is less than 190 g/mol. The invention further relates to articles comprising the coating and a polymer.

Coating for the inner surface of plastic bottles for protection against degradation from volatile organic compounds

Self-crosslinking aqueous coating compositions are disclosed comprising a water-dispersible alkyd having both sulfonate and acetoacetate functionality, a suitable bi- or poly-functional primary amine, and a monofunctional primary or cycloaliphatic secondary amine. The crosslinking of the composition includes oxidative curing via the fatty acid segments of the alkyd, and crosslinking via reaction between the acetoacetate groups of the alkyd and the primary amine groups of the polyfunctional amine. The aqueous alkyd systems disclosed do not require the presence of amines for the purpose of dispersing the alkyds, while exhibiting superior tack-free and through-dry times when used in coating compositions. Performance levels are achieved that heretofore had required increases in molecular weight and Tg, with a concomitant increase in VOC levels. Also disclosed are methods of making the inventive compositions.

Self-crosslinking aqueous acetoacetate-functionalized sulfonated alkyd systems

Growing community of inventors

Chuckey, TN, United States of America

Amy Lee Bolton