Valspar Sourcing, Inc.

John H Mazza

Jeffrey Niederst

Thomas R Mallen

Grant Schutte

Girish G Parekh

William H McCarty

Jason M Legleiter

Mike A Lucarelli

The present invention provides hardenable coating compositions, comprising: a first compound selected from the group consisting of polyacids, polyanhydrides, salts thereof and mixtures thereof, and a second compound having two or more active hydrogen groups. When used as a roll coating composition, the first compound preferably has a low average molecular weight and an acid number greater than about 100. The hardenable coating composition preferably has an extended open time and can be rapidly cured to a substantially tack-free state in less than about one minute at 200&#xb0; C. Coated articles and methods of coating are also provided.

Hardenable compositions comprising polyacid(s) and polyol(s)

A coating composition including an epoxy functionalized stabilizer with a monomeric unit derived from a glycidyl ester of an &#x3b1;,&#x3b2;-unsaturated acid, or an anhydride thereof; and a thermoplastic dispersion.

Coating compositions having epoxy functional stabilizer

The present invention provides novel low molecular weight, high functionality number, polymers. The polymers may be made, for example, by heating (preferably, to a temperature of between about 130&#xb0; C. and 180&#xb0; C.) one or more ethylenically unsaturated monomers in the presence of a substantially aprotic solvent system; and maintaining the temperature for a time sufficient to polymerize the monomers to a preferred monomer to polymer conversion percentage of at least about 95 percent by weight. In a presently preferred embodiment, the polymer has a weight average molecular weight between about 900 and 7,000 Dalton and a functionality number of at least 100. The process is also preferably substantially free of chain transfer agents.

High functionality number, low molecular weight polymers and methods of making same

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Cheswick, PA, United States of America

John H Mazza