Chemetall Gmbh

Nippon Paint Compnay, Ltd.

Metallgesellschaft Aktiengesellschaft

Dynamit Nobel Aktiengesellscha

Thomas Kolberg

Toshio Inbe

Manfred Walter

Peter Schubach

Horst Gehmecker

Olaf Dahlenburg

Hardy Wietzoreck

Klaus Bittner

Christian Jung

Hiroshi Kameda

Toshiaki Shimakura

Heribert Domes

Norbert Maurus

Gerhard Muller

Thomas Wendel

Marcus Schinzel

Joachim Heitbaum

Werner Rausch

Dieter Hauffe

Kevin Brown

Carola Komp

Frank Hollmann

Norbert Kliehm

Marion Wegner

Lisa Schmeier

Jürgen Specht

Ralf Stickler

Peter Jorns

Margit Fleischhacker-Jeworrek

Lisa Seider

Eckart Schoenfelder

Rudiger Rein

Axel Schöne

Michael Dröge

Dirk Meyer

Gerrit Schüllermann

Michael Droege

Michael Lenhard

Michael Deemer

Eckart Schönfelder

The present invention relates to a method for substantially nickel-free phosphating of a metallic surface, wherein a metallic surface is treated one after the other with the following compositions: The invention also relates to the above cleaner composition itself and also to a metallic surface phosphate-coated by the above method, and to the use of said surface.

Method for nickel-free phosphating metal surfaces

Provided herein is a method for specifically adjusting the electrical conductivity of a conversion coating, wherein a metallic surface or a conversion-coated metallic surface is treated with an aqueous composition which comprises at least one kind of metal ions selected from the group consisting of the ions of molybdenum, copper, silver, gold, palladium, tin, and antimony and/or at least one electrically conductive polymer selected from the group consisting of the polymer classes of the polyamines, polyanilines, polyimines, polythiophenes, and polypryrols.

Method for specifically adjusting the electrical conductivity of conversion coatings

The invention relates to a process for coating metallic surfaces with a composition containing silane/silanol/siloxane/polysiloxane, wherein, in addition to The invention further relates to corresponding aqueous compositions.

Process for coating metallic surfaces with a multicomponent aqueous composition

A method for coating metallic surfaces with aqueous compositions, wherein a silane-based aqueous composition containing at least one silane and/or a related silicon-containing compound and optionally additional components is treated further, for example, at temperatures above 70&#xb0; C., in a pretreatment step without drying the coating, by using at least one aqueous rinse step after this pretreatment step and then performing an electrodeposition coating, in which at least one surfactant is added at least in the last rinse step of the aqueous rinse steps. Coated metallic surfaces are also described.

Method for coating metallic surfaces with a multi-component aqueous composition

The invention relates to a process for coating metallic surfaces with a composition containing at least one of a silane, silanol, siloxane or polysiloxane that is capable of condensation, water and optionally an organic solvent. The composition also contains compound containing Ti, Hf, Zr, Al or B; and at least one type of cation or an organic compound d) selected from monomers, oligomers, polymers, copolymers and block copolymers. The coating freshly applied with this composition is rinsed with a fluid and is not dried thoroughly before this rinsing step so that the compound capable of condensation does not condense substantially before the rinsing step.

Method for coating metallic surfaces with an aqueous composition

This invention relates to a method for phosphating metal surfaces in which the metal surfaces are treated with an aqueous phosphate and titanium-based colloidal activating agent prior to phoshating, wherein the activating agent comprises at least one water-soluble silicon compound having at least one organic group. The invention also relates to a corresponding activating agent.

Method for coating metal surfaces with an activating agent prior to phosphating

A metal material is contacted with a treatment solution containing zirconium and/or titanium compound, and a polyamine compound having a number average molecular weight from 150 to 500,000 and containing from 0.1 mmol to 17 mmol of primary and/or secondary amino group per 1 g of solid content and at least one siloxane unit. Concentration of zirconium and/or titanium compound in the metal surface treatment composition is from 10 ppm to 10,000 ppm with respect to the metal element, and mass ratio of the zirconium and/or titanium element is from 0.1 to 100 with respect to the polyamine compound. The metal material is washed with water after contacted by the treatment solution.

Composition for metal surface treatment, metal surface treatment method, and metal material

A method for coating a metallic surface with an aqueous composition for pretreating before applying another coating or for treating said metallic surfaces. The method is characterized in that the composition contains, in addition to water; a) at least one hydrolyzable or at least partially hydrolyzed fluorine-free silane, and; b) at least one hydrolyzable or at least partially hydrolyzed fluorine-containing silane. The invention also relates to corresponding compositions.

Method for coating metallic surfaces with a mixture containing at least two silanes

Disclosed is an easily handleable composition for metal surface treatment which enables to achieve foundation surface concealment, coating adhesion and corrosion resistance equal to or higher than those obtained by the conventional metal surface treatment compositions. This composition for metal surface treatment places no burden on the environment. Also disclosed are a method for treating the surface of a metal material wherein such a composition for metal surface treatment is used, and a metal material treated by such a metal surface treatment method. Specifically disclosed is a metal surface treatment composition used for a treatment of a metal surface, which composition contains a zirconium compound and/or titanium compound substantially not containing fluorine, and an inorganic acid and/or a salt thereof. This metal surface treatment composition has a pH of not less than 1.5 but not more than 6.5.

Composition for metal surface treatment, metal surface treatment method and metal material

A method of producing a surface-treated metal material, comprising: surface treating a metal material using a treatment liquid (1), which comprises from 10 to 10,000 ppm of tin ions and has a pH of 1.0 or greater, and subjecting the metal material that has undergone surface treatment with the treatment liquid (1) to an additional chemical conversion treatment using a treatment liquid (2), which comprises zirconium ions and/or titanium ions.

Method of producing surface-treated metal material and method of producing coated metal item

A composition and a method for coating metallic surfaces with a silane/silanol/siloxane/polysiloxane-containing composition, whereby the composition contains a) at least one compound selected from the silanes, silanols, siloxanes and polysiloxanes, b) at least two compounds selected from titanium-, hafnium-, zirconium-, aluminum- or boron-containing compounds, optionally c) at least one type of cation selected from cations of metals of the 1to 3and 5to 8sub-groups including the lanthanides and the 2main group of the periodic table of the elements or at least one corresponding compound, d) at least one organic compound selected from monomers, oligomers, polymers, copolymers and block copolymers or e) at least one substance affecting the pH value, water and optionally at least one organic solvent.

Process for coating metallic surfaces with an aqueous composition, and this composition

A metal surface treatment composition including at least one compound selected from the group consisting of a zirconium compound and a titanium compound, and an organosiloxane, which is a polycondensate of organosilane and has in a molecule thereof of at least two amino groups, in which the Degree of polycondensation of the organosiloxane is at least 40%, the content of at least one compound selected from the group consisting of the zirconium compound and the titanium compound is predetermined content, the content of the organosiloxane in the metal surface treatment composition is predetermined content, and the mass ratio of at least one element selected from the group consisting of the zirconium element and the titanium element contained in the zirconium compound and the titanium compound, respectively, to the silicon element contained in the organosiloxane is a predetermined ratio.

Metal surface treatment composition, metal surface treatment method, and metal material

A composition for metal surface treatment can form a chemical conversion coating film which achieves sufficient foundation surface concealment, coating adhesion and corrosion resistance. A method for treating the surface of a metal material with such a composition for metal surface treatment is used. Specifically a metal surface treatment composition used for a treatment of a metal surface, contains a zirconium compound and/or a titanium compound, and a polyamine compound having a number average molecular weight of not less than 150 but not more than 500,000. The polyamine compound contains not less than 0.1 millimole but not more than 17 millimoles of a primary and/or secondary amino group per 1 g of the solid content, and the content of the zirconium compound and/or titanium compound in the metal surface treatment composition is not less than 10 ppm but not more than 10,000 ppm in terms of metal elements. The mass ratio of the zirconium element and/or titanium element contained in the zirconium compound and/or titanium compound relative to the polyamine compound is not less than 0.1 but not more than 100.

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Heppenheim, Germany

Thomas Kolberg