Herberts Gesellschaft MIT Beschrankter Haftung

E.i. Dupont De Nemours and Company

Thyssenkrupp Steel Europe Ag

Herberts Gmbh

Thyssen Krupp Ag

Alufinish Gesellschaft Für Verfahrenstechnik Und Spezialfabrikation Von Produkten Zur Metalloberflächenbehandlung Mbh & Co. Kg

Matthias Kimpel

Klausjorg Klein

Martin Wulf

Michael Steinhorst

Oliver Reis

Manfred Meurer

Joachim Blum

Dieter Engel

Jurgen Dobert

Wilhelm Warnecke

Dieter Stranghoner

Walter Kuhhirt

Friedrich-Ludwig Siever

Wolfgang Goldner

Reiner Bohmert

Klaus-Peter Doebler

Thomas Lostak

Gabriele Buttner

Manfred Stein

Christoph Moelzer

Thomas Sondermann

Gerhard Pech

Marcus Erne

Christoph Strahl

Ansgar Albers

Barbara Lupp

Sabine Hasenfuss

An aqueous agent for the anticorrosive treatment of metallic substrates and to a method for coating such substrates. The aqueous agent according to this invention includes at least one compound that dissociates into zirconium- or titanium-fluorine complexes in aqueous solution, at least one water-soluble compound that releases metal cations, the metal cations being selected from the group composed of: iron-, copper-, or silver ions, and a water-soluble alkoxysilane that has at least one epoxy group.

Aqueous agent and coating method for the anticorrosive treatment of metallic substrates

Electrodeposition coating process

A process for the production of a multi-layer coating, wherein a primer layer which is electrically conductive in the at least partially cured state is applied by electrodeposition from an electrodeposition coating agent (I) to an electrically conductive three-dimensional object, at least partially cured exclusively by the action of near infra-red radiation substantially only on the surfaces of the object exposed to the radiation, and an additional coating layer is applied by electrodeposition from an electrodeposition coating agent (II) which is different from electrodeposition coating agent (I), and then this additional coating layer as well as completely uncured or incompletely cured area parts of the primer layer produced from electrodeposition coating agent (I) are cured.

Process for multi-layer coating

Multilayer lacquering process

Process for coating phosphated metal substrates

Process for the production of multi-layer lacquer coatings by electrophoretic deposition of a first coating layer of a first, aqueous coating composition onto an electrically conductive substrate, application of a second coating layer based on a second, powder coating composition and joint baking of the coating layers so obtained, which process is characterised in that a powder coating composition is used for the second coating layer which is based on binders which contain no diene-based polymer units, wherein the coating composition is selected such that the minimum baking temperature range of the second coating layer is above that of the first coating layer or overlaps with this range in such a manner that the lower limit of the range of the second coating layer is above the lower limit of the range of the first coating layer.

Process for the production of multi-layer lacquer coatings

A process is described for producing multilayer coatings in which a first coating layer of a first aqueous coating medium is applied to an electrically conducting substrate by electrophoretic deposition, is provided wet-in-wet with a second coating layer of a second aqueous coating medium, followed by joint stoving, wherein a coating medium based on one or more vehicles stabilised by ionic groups and which crosslink on stoving with the formation of urethane groups is used for the second coating layer, and the coating media are selected so that the maximum pigment/vehicle weight ratio of the first coating medium is 1:1, that the ratio of the pigment/vehicle weight ratio of the first coating medium to that of the second coating medium is up to 1.8, and the minimum stoving temperature interval of the second coating layer is above that of the first coating layer or overlaps the latter so that the lower limit of the interval for the second coating layer is above the lower limit of the interval for the first coating layer.

Process for the production of multilayer coatings

Growing community of inventors

Schwelm, Germany

Matthias Kimpel