E.i. Dupont De Nemours and Company

Coatings Foreign IP Co. LLC

Thomas Fey

Carmen Flosbach

Karl-Friedrich Doessel

Oliver Reis

Werner Lenhard

Martin Wulf

Klaus Wissing

Eva Frigge

Stuart Alexander Kernaghan

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 process for the production of a coating layer from a thermally curable coating composition on a substrate, comprising the successive steps:

Process for the production of paint coating layers

A process for the production of a coating layer from a thermally curable coating composition on a substrate, comprising the successive steps: wherein the supply of thermal energy onto the coating proceeds prior to and/or after removal of the backing foil.

The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps:

Process for repairing coated substrate surfaces

A process for the production of a coating layer from a coating composition curable with high-energy radiation on a substrate, comprising the successive steps:

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Mainz, Germany

Thomas Fey