Henkel Kommanditgesellschaft Auf Aktien

Henkel Ag & Company, Kgaa

Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)

Peter Kuhm

Jan-Willem Brouwer

Werner Gruber

Marcel Roth

Matthias Hamacher

Bernd Mayer

Christian Rosenkranz

Horst Hoeffkes

Heinz Mueller

Bernd Wegemund

Claus-Peter Herold

Juergen Geke

Stephan Von Tapavicza

Eugene G Harris

Horst-Dieter Speckmann

Winfried Wichelhaus

Michael L Sienkowski

Wolfgang Breuer

Gerald J Cormier

Helmut Endres

Frido Loeffelholz

Patrick Droniou

Udo Hees

Gerhard Blasey

Rainer Wefringhaus

Michael Wolpers

Jens Kroemer

Jurgen Geke

Juergen Foell

Eva Wilke

Juergen Lindener

Loert De Riese-Meyer

Christian Block

Wolfgang Lorenz

Hans-Josef Hoffmann

Franz-Adolf Czika

Reinhard Bunte

Christine Schroeder

Sophie Cornen

Reiner Wark

Karsten Hackbarth

Jens Krömer

Wolf-Dieter Beiersdorf

Bernd Schenzle

Kevin Meagher

Volker Sander

Hans Scheer

Annette Willer

Guadalupe Sanchis Otero

Johannes W Hachgenei

Melita Heller

Christian Stromberg

Jens Vier

Christoph Waloch

Markus Senner

Burkhard Muller

Frank Krude

Peter Wedel

Brigitte Calaminus

Norbert Hubner

Rainer Salz

Pietro Balboni

Giorgio Cortellaro

Pamela Cziesla

Ulrich Jüptner

Simone Cortellaro

Manfred Holzmüller

Hubert Venschott

Volkhard Enke

Gertrud Ewald

Hans-Oscar Stephan

Franz-Josef Schueller

Birgit Gies

Berhard Kotschy

Silvia Hohagen

Kevin K Meagher

Iradj Peirow

A method and associated system for applying an optimized processing treatment to items in an industrial treatment line are described. First, settings for a value of a working parameter in the treatment line are defined. The settings are associated with value ranges of a parameter representative of an external property of items. Then, a value of the parameter representative of the external property of the item is measured. A setting for the value of the working parameter associated with a value range from the set of value ranges comprising the measured value is compared to the current setting of the working parameter. When a difference is detected between the associated setting and the current setting, the current setting is changed to the associated setting.

Method for applying an optimized processing treatment to items in an industrial treatment line and associated system

A metal sheet, inclusive of a metal strip, having a front side and a back side, both the front side and the back side comprising a first coating having an average thickness in the range from 0.5 to 10 &#x3bc;m, wherein the first coating of the front side contains particles, which release divalent or multivalent metal ions upon the action of an acid, in such an amount that a self-depositing coating agent forms, upon contact with the front side, a second coating thereon, whereas this is not the case for the first coating of the back side. The first coating of the front side can be overcoated with a self-depositing coating agent. Cut edges that do not have a first coating can be covered with the self-depositing coating agent. Correspondingly coated metal sheets, as well as a method for the manufacture thereof, are furthermore within the scope of the invention.

Multi coated metal substrate and method for the production thereof

The invention relates to a method for a preliminary metallizing treatment of galvanized or zinc alloy-coated steel surfaces or joined metallic parts that at least partly have zinc surfaces, in a surface treatment encompassing several process steps. In the disclosed method, metallic coats of especially a maximum of 100 mg/mof molybdenum, tungsten, cobalt, nickel, lead, tin, and/or preferably iron are produced on the treated zinc surfaces. Another embodiment of the invention relates to an uncoated or subsequently coated metallic part which has been subjected to the disclosed preliminary metallizing treatment as well as the use of such a part for making bodies during the production of automobiles, building ships, in the construction industry, and for manufacturing white products.

Preliminary metallizing treatment of zinc surfaces

In a process for the chemical pretreatment before painting of composite metal structures that contain aluminum or aluminum alloy portions together with steel, galvanized steel and/or alloy-galvanized steel portions, in a first step the metal structure is treated with a zinc phosphating solution that forms a surface-covering crystalline zinc phosphate layer on steel and on galvanized or alloy-galvanized steel, but without forming a zinc phosphate layer on the aluminum portions, and then in a second step the metal structure is brought into contact with a treatment solution that does not excessively dissolve the crystalline zinc phosphate layer on steel, galvanized and/or alloy-galvanized steel, but forms a conversion layer on the aluminum portions.

Pretreatment before painting of composite metal structures containing aluminum portions

The present invention relates to a composition for coloring keratin fibers and a method of using the same. The composition of the present invention contains at least one dye precursor, and one or more clathrate compounds that contain transition metal complexes.

Coloring agent comprising transition metals

A process for post-passivation of a phosphated metal surface, characterized in that the phosphated metal surface is treated with an aqueous post-passivation solution which contains from 50 to 500 mg/l of nickel ions and from 200 to 1500 mg/l of phosphate ions. Rinsing water arising which contains constituents of the post-passivation solution may be processed by nanofiltration or reverse osmosis, the retentate being transferred into the phosphating bath, thereby closing the Ni circuit. The post-passivation solution preferably additionally contains a phosphating accelerator.

Post-passivation of a phosphatized metal surface

A process for treating phosphatising bath overflow and/or wash water after phosphatising, phosphatising being performed using an acid, aqueous phosphatising solution which contains from 3 to 50 g/l of phosphate ions, calculated as PO , from 0.2 to 3 g/l of zinc ions, optionally further metal ions and accelerator, characterised in that the accelerator is an organic molecule or molecular ion having a molecular weight of at least 80 g/mol, and that the phosphatising bath overflow and/or the wash water is subjected to ultrafiltration. The permeate from ultrafiltration is preferably separated further by means of nanofiltration or reverse osmosis. The permeate from the second separation may be recycled as wash water; the retentate may be recycled to the phosphatising bath.

Treatment of phosphatizing waste water

A process for pretreating surfaces made from steel, galvanised steel and/or aluminum and/or alloys thereof, wherein, in a first process stage, phosphating is performed using a low-nickel zinc phosphating solution; in a second process stage, the phosphated surfaces are post-rinsed using an aqueous solution which contains 0.001 to 10 g/l of lithium ions; copper ions and/or silver ions; and, in a third process stage, a low-lead cathodically depositable electrocoating lacquer is applied which contains no more than 0.05 wt. % of lead, relative to the dry solids content of the lacquer.

Process for phosphatizing, rerinsing and cathodic electro-dipcoating

Process for the collective pretreatment of steel, galvanized steel, magnesium and aluminum before bonding to rubber

An acidic aqueous phosphating solution is presented having 0.2 to 3 g/l of zinc ions, 3 to 50 g/l of phosphate ions expressed as PO , and 0.05 to 4 g/l of an organic N-oxide containing a saturated, unsaturated or aromatic 5- or 6-membered ring system, where the N atom of the N-oxide is part of said ring system, and where the ratio by weight of phosphate ions to zinc ions is from 3.7 to 30:1. The solution is free of hydroxylamine and useful in phosphating metal surfaces.

Phosphating method accelerated by N-oxides

Metal surfaces are contacted with a solution of a process bath (,), for example a phosphating or pickling solution, which comprises several components in aqueous solution, the composition of the process bath (,) being maintained within a given range by addition of solutions or gases, in particular air. The profitability is improved considerably if the solution of the process bath (,) is circulated via a first line (,) and a circulating pump (,) and the solution to be added and/or the gas to be added is fed to the process bath where, as a consequence of the ending of the line (,), vigorous thorough mixing prevails, or if the solution to be added or the gas to be added is fed to a suction pump (,), the solution to be added or the gas to be added mixing with the circulated solution.

Process for the chemical treatment of metal surfaces and installation suitable therefor

P-dinitrosobenzene

Mineral additives for setting and/or controlling the rheological

Process for the production of very fine-particle zeolitic alkali metal

Method for electrolytic coloring of aluminum surfaces using alternating

Growing community of inventors

Hilden, Germany

Peter Kuhm