E.i. Dupont De Nemours and Company

Axalta Coating Systems IP Co LLC

Coatings Foreign IP Co. LLC

Klaus Wissing

Robert John Barsotti

Carmen Flosbach

Christian Peter Lenges

Laura Ann Lewin

Patrick Henry Corcoran

Jozef Theresia Huybrechts

Bettina Vogt-Birnbrich

Kalindi Dogra

Stefan Reinartz

Thomas Fey

Thomas Grawe

Wilfried Collong

Andreas Fieberg

A process for multilayer coating of a metal substrate includes pretreating the metal substrate with an acidic aqueous composition comprising phosphate ions and/or a water-soluble titanium and/or zirconium compound, and water. The pretreated metal substrate optionally is flashed off and a surfacer layer of an organic-solvent based surfacer coating composition is applied. The organic-solvent based surfacer coating composition includes a polyaspartic acid ester, a polyisocyanate cross-linking agent with free isocyanate groups, a pigment and/or extender, and an organic solvent. The surfacer layer is cured.

Processes for producing a multilayer coating

The invention relates to aqueous coating compositions for producing primer and/or filler layers in a multi-layer coating, in particular in vehicle coating, comprising the following components:

Aqueous primer surfacer compositions

The invention relates to a process for multi-layer coating of substrates, in particular vehicles and vehicle parts, by applying two or more coating layers and curing of the applied coatings, wherein at least one of the coating layers is produced from a coating composition which comprises at least one polyurethane binder with free-radically polymerizable olefinic double bonds in the form of (meth)acryloyl groups and with hydrolysable alkoxysilane groups, wherein the resin solids content of the coating composition exhibits an equivalent weight of C&#x2550;C double bonds of 200-2000, preferably of 300-1500, and a content of silicon bound in alkoxysilane groups of 1-10 wt-%, preferably of 1-7 wt-%, especially preferably of 2-6 wt-%, and wherein curing of the coating layer, of which there is at least one, proceeds by free-radical polymerisation of the C&#x2550;C double bonds on irradiation with high energy radiation and by the formation of siloxane bridges under the action of moisture.

Process for multilayer coating of substrates

A coating composition useful for coating automobile and truck bodies comprising a binder of wherein X, Y, R, R, m and n are described in the specification, and

Durable coating compositions containing aspartic amine compounds with improved potlife

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Duesseldorf, Germany

Klaus Wissing