E.i. Dupont De Nemours and Company

Herberts Gesellschaft MIT Beschrankter Haftung

Herberts Gmbh

Werner Lenhard

Hans-Peter Patzschke

Bettina Vogt-Birnbrich

Karin Maag

Marcus Brunner

Jurgen Dobert

Carmen Flosbach

Walter Schubert

Karsten Blatter

Karl-Friedrich Doessel

Oliver Reis

Thomas Fey

Wilfried Collong

Helmut L&ouml;ffler

Christine Kurz

Dietrich Saatweber

Volker Rekowski

Wolfgang Goldner

Wolfgang Diener

Peter Klostermann

Hans-Ulrich Simmrock

Helmut Loffler

Albrecht Luttenberg

Bettina Vogt

Robert Besold

Uwe Neumann

Frank-Jurgen Krumpolt

Willi Schlesing

Michael Osterhold

Frank-J&uuml;rgen Krumpolt

Heike Heuwinkel

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 preparation of a multi-layer coating wherein a colour- and/or special effect-imparting base lacquer coating compound is applied to a substrate optionally precoated with a primer and/or primer surfacer coating compound and/or further coating compounds and a clear lacquer layer is then applied to the colour- and/or special effect-imparting base lacquer layer, wherein the colour- and/or special effect-imparting base lacquer coating compound used is one which contains binders which can be cured by free-radical and/or cationic polymerisation under the action of high-energy radiation.

Method for multi-layered coating of substrates

Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a color-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which the surfacer coating compound which is used is one which either contains binders which are curable exclusively by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, or is one which contains binders which are curable by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, and additionally contains chemically cross-linking binders.

Method of lacquering a substrate by applying a clear-lacquer coating compound to a precoated substrate or a one-coat top lacquer coating compound to an optionally precoated substrate, followed by curing, the substrate being a motor-vehicle body or parts thereof, in which the substrate is subjected, after the application of the clear-lacquer coating compound or one-coat top lacquer coating compound, optionally to a drying phase and the curing is then performed by irradiation with NIR radiation having the wavelength from 760 to 1500 nm.

Method for coating motor vehicle bodies or parts thereof

Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a colour-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which coating compounds which contain binders which are curable by free radical and/or cationic polymerisation are employed as the surfacer, the base lacquer and the clear lacquer as well as the one-layer top lacquer, and wherein the said binders are cured by means of high-energy radiation.

A process for multilayer lacquering, wherein a surfacer coating compound is applied to an optionally precoated substrate and then cured, a top coat layer of a color-imparting and/or special effect-imparting base coat and a clear coat coating compound or of a pigmented one-coat top coat coating compound is applied to the surfacer layer obtained and cured, wherein, after application of the surfacer coating compound, the not yet cured surfacer layer is irradiated with NIR radiation in the wave length range from 760 to 1500 nm.

Method for producing multi-layer paint coatings

Aminourethane hardeners, epoxide-based coating media and the use thereof

A process for producing a repair coating This invention relates to a process for producing a multi-layer repair coating by the application of a transparent clear lacquer coat, which is unpigmented or which contains colourless pigment, to a predried or hardened colour- and/or effect-imparting base pigment coat, or by the application of a pigmented covering lacquer coat to an optionally precoated substrate. Binder vehicles which are hardenable exclusively by radical polymerisation are used for the production of the transparent clear lacquer coat or of the pigmented covering lacquer coat, and hardening is effected by means of pulsed, high-energy UV radiation.

Process for producing a repair coating

Aqueous coating composition, containing I) one or more amine hardeners, II) one or more water-dilutable epoxy resins, III) one or more pigments and/or fillers and IV) water and optionally one or more solvents and/or conventional lacquer additives, wherein the composition of the coating composition is selected in such a way that a hardened free film formed from the coating composition with a coat thickness between 30 and 80 .mu.m has a storage modulus E' of 10.sup.8 Pa to 5.times.10.sup.9 Pa in a temperature range from -50.degree. C. to 150.degree. C.

Aqueous coating composition and its use to produce filler coats

Aqueous coating media and their use in single-layer and multi-layer

Aqueous dispersion of polyurethanes containing siloxane linkages,

A process for preparing a multi-layer coating on an electrically nonconductive surface of a substrate, which comprises

Method for producing multilayer coatings

Process for producing decorative multiple-layer coatings

There are described aqueous dispersions of polyurethane resins, the production thereof and their use in aqueous coating agents, said dispersions being obtainable in aqueous or non-aqueous phase from

Aqueous dispersion of polyurethane resins, the production thereof and

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Wuppertal, Germany

Werner Lenhard