Ppg Industries Ohio, Inc.

Kathryn A Shaffer

Anthony Michael Chasser

Hongying Zhou

Brian Edward Woodworth

Edward Richard Millero, Jr

Troy James Larimer

John R Schneider

Tsukasa Mizuhara

Robert Cavlovich

Daniel K Dei

Julia Pacilio

Polyoxazoline-containing compositions cured in the presence of an onium salt catalyst are disclosed.

Polyoxazoline-containing compositions catalyzed with onium salt

The present invention is directed to a powder coating composition including a hydroxy-functional polymer, a carbodiimide crosslinker, and an organometallic catalyst. The present invention is also directed to a substrate at least partially coated with the powder coating composition. The present invention is also directed to a method of applying a coating composition to a substrate including: applying the powder coating composition to a substrate and heating the powder coating composition to form a coating over the substrate.

Powder coating composition comprising an organometallic catalyst

A powder coating composition grindable at non-cryogenic temperatures includes: (a) a first polymer having a number average molecular weight (Mn) of more than 1,000 and a Tg of at least 40&#xb0; C.; (b) a second polymer having a Tm of at least 100&#xb0; C.; and optionally (c) a cross-linker. The first polymer and the second polymer are different from one another, and each of the first and second polymers have less than 25 wt % fluorine-containing monomeric units, with wt % based on the total weight of the monomeric units in each polymer. Upon grinding at a temperature above 4&#xb0; C. the coating composition has an average particle size from 15 to 150 microns. Further coating compositions, methods of preparing coating compositions, coating systems, and substrates coated with a powder coating composition are also disclosed.

Powder coating composition

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Bethel Park, PA, United States of America

Kathryn A Shaffer