Herberts Gesellschaft MIT Beschrankter Haftung

Herberts Gmbh

Herberts Gesellschaft MIT Beschraenkter Haftung

Herberts Gellschaft MIT Beschrankter Haftung

Klausjorg Klein

Matthias Kimpel

Hans-Peter Patzschke

Joachim Blum

Dietrich Saatweber

Walter Kuhhirt

Dieter Engel

Bettina Vogt-Birnbrich

Dieter Stranghoner

Gabriele Buttner

Friedrich-Ludwig Siever

Kurt E Jaeger

Helmut Honig

Armin Gobel

Wolfgang Goldner

Jurgen Dobert

Armin Goebel

Georg H Hendrikx

Heinz-Peter Katzmann

Reiner Bohmert

Norbert David

Klaus-Peter Doebler

Johann Hirtl

Manfred Stein

Marcus Erne

Multilayered enamelling process

Stove-enamel coating media and the use thereof

Storage-stable, single-component concentrate, production and use thereof

Multilayer lacquering process

Process for multi-layer coating

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

1 Process for producing a catalyst paste for cathodically separable electrophoretic dipping lacquers. 2.1 Use was made of dibutyltin oxide by way of a catalyst paste for electrophoretic dipping lacquers, dispersed in pasting binders. An object is to provide a new process for producing such catalyst pastes while saving time and energy. 2.2 A process is provided for producing a catalyst paste for cathodically separable electrophoretic dipping lacquers, wherein the dibutyltin oxide is first pre-dispersed with an organic solvent and an organic acid such as is commonly used for neutralizing cathodically separable electrophoretic dipping lacquers, whereupon it is dispersed with the pasting binder and water and ground. 2.3 Cathodic electrophoretic dip lacquering making use of catalyst pastes containing dibutyltin oxide.

Process for the production of catalyst pastes containing dibutyltin

Aqueous cathodic electrodeposition lacquer coating compositions are provided which comprise (A) certain water soluble synthetic resin binders containing amino groups; (B) crosslinking reagents which react with resin (A), and (C) certain soluble or insoluble transesterification catalysts for the crosslinking reagents. Methods of forming baked finish coatings which are cathodically deposited on electrically conductive surfaces using the lacquer coatings are also disclosed.

Aqueous cathodic electro-deposition lacquer coating compositions and

Aqueous electrodeposition coating baths containing cathodically depositable binders and having a content of homopolymers or copolymers of an alkyl vinyl ether, characterized in that the baths contain the following surface-improving additives:

Cathodically depositable electrodeposition coating baths comprising

A non-autocrosslinking binder composition for water-dilutable lacquers containing 1 to 99% by weight of a hydroxyl group-containing and amino group-containing epoxide resin and 99 to 1% by weight of an amino groupcontaining synthetic resin binder prepared from free radically polymerizable monomers is described. Aqueous electrodip lacquer coatings containing this binder composition and capable of being deposited at the cathode and their use for coating articles having an electrically conductive surface at the cathode are also described.

Non-autocrosslinking binder combination for water-dilutable lacquers

Aqueous electrodip lacquer coating compound capable of being deposited cathodically, containing, as synthetic resin binder,

Aqueous electrodip lacquer coating compound capable of being deposited

Growing community of inventors

Wuppertal, Germany

Klausjorg Klein