Abstract: A method for coating, a composition suitable for coating and a coating generated with the method of coating on anodizable metallic surfaces, especially on magnesium rich and aluminum rich surfaces, is disclosed. The composition is an aqueous solution including alkali metal or ammonium cations, phosphorus containing anions and silicon containing anions as well as optionally a peroxide or a compound of Al, Ti, Zr or any mixture of them. Preferably, the anodizing is carried out with a micro-arc oxidation process.

Abstract: The invention relates to a method for coating surfaces, to a corresponding coating, and to the use of the objects coated in accordance with said method.

Abstract: The invention relates to a coating mixture for applying a polymeric, corrosion-preventing protective layer to a metallic base for protecting an edge area, a soldered point, a weld seam or a repair point or for sealing the seam of one or more optionally interjoined strips, metal sheets or shaped parts.

Abstract: Chemical conversion treatment agents for surface treating a metal substrate and a method for surface treating a metal substrate using the same are described in this disclosure. The chemical conversion agent includes at least one metal element, a fluorine element, and a co-condensate of a first silane coupling agent (A) and a second silane coupling agent (B).

Abstract: A method and composition for coating surfaces, a corresponding coating and the use of objects coated according to said method. A cleaned, metallic surface is contacted with an aqueous composition that is a dispersion or suspension, and drying and/or baking the organic coating or optionally, drying the organic coating and coating with an equivalent or additional coating composition prior to a drying and/or baking. The aqueous composition has a pH of 4 to 11 and contains an anionic polyelectrolyte in a quantity of 0.01 to 5.0 wt. % relative to the total mass of the composition, which may have a solids content of from 2 to 40 wt. %. The solids have an average particle size from 10 to 1000 nm. A coating forms on the basis of an ionogenic gel which binds cations released from the metallic surface that originate from a pretreatment stage or from the contacting.

Abstract: A method for electroless coating of a substrate by applying an activating coat of polyelectrolyte or salt with a first aqueous composition, rinsing of the activating coat such that the activating coat is not entirely removed The activated surface that has remained after rinsing is then contacted with an aqueous composition in the form of a solution, emulsion or suspension to form an organic secondary coat (precipitation coat), and drying. The activating coat contains at least one cationic polyelectrolyte or at least one cationic salt in solution in water. The aqueous composition which forms the secondary coat contains constituents which can be precipitated, deposited and/or salted out and which are anionically, zwitterionically, sterically or cationically stabilized. The dry film formed in the process, which is made of the activating coat and the secondary coat, has a thickness of at least 1 ?m.

Abstract: A method for electroless coating of substrates by applying an activating coat of polyelectrolyte or salt with a first aqueous composition; rinsing the activating coat such that the activating coat not being entirely removed; contacting and coating of the activated surfaces that have remained after rinsing with an aqueous composition in the form of a solution, emulsion or suspension, to form an organic secondary coat; and drying. The activating coat is a solution, emulsion or suspension containing a anionic polyelectrolyte or at least one anionic salt in solution in water. The aqueous composition forming the secondary coat has constituents which can be precipitated, deposited or salted out and which are anionically, zwitterionically, sterically or cationically stabilized. The dry film formed in the process, comprising the activating coat and the secondary coat, has a thickness of at least 1 ?m.

Abstract: An organomagnesium synthesis agent, a process for preparing this synthesis agent, and its use.

Abstract: A method for coating metal surfaces, in particular surfaces of wheels made of an aluminum alloy, in a multi-step method, wherein the metallic surfaces are first contacted with an aqueous composition predominantly containing silane/silanol/siloxane/polysiloxane and thereafter contacted with an aqueous composition predominantly containing at least one phosphonic compound.

Abstract: The invention relates to a method for applying manages phosphate layers to iron or steel surfaces using phosphating solutions containing manganese, phosphate, iron (II) ions as well as nitroguinidine, as well as its application to workpieces that are subject to sliding friction.

Abstract: A galvanic cell having a lithium metal or an alloy comprising a lithium metal as anode material, having an electrolyte comprising lithium bis(oxalate)borate and at least one other lithium complex salt in an aprotic solvent or solvent mixture, in the ratio of lithium complex salt in the conducting salt equals 0.01 to 20 mol %.

Abstract: The present invention relates to an aqueous composition for pretreating a metallic surface before further coating or for treating said surface. The aqueous composition is obtained by adding a) at least [one] sodium, potassium, and/or ammonium water glass and b) at least one silane to water. The quantity ratio of a) to b), in each case including the resulting reaction products, is preferably in the range of 0.1:1 to 2:1.

Abstract: The invention relates to an aqueous alkaline cleaning composition for cleaning metal surfaces, containing at least one non-ionic surfactant having demulsifying action and based on ethoxylated alkyl alcohols having one or two alkyl groups, each comprising an average of 7.5 to 16.5 carbon atoms, and an average of 5.5 to 18.5 EO groups per alkyl group, and comprising an end group closure or two end group closures, of which at least one end group closure is an isopropyl, isobutyl, tertiary butyl and/or benzyl group, wherein the surfactant is not propoxylated.

Abstract: Methods for treatment shaped bodies are described herein. The methods generally include contacting at least one shaped body with an aqueous acidic composition to form a conversion layer on a surface of the at least one shaped body, wherein the surface includes iron or steel and a carbon content in a range of 0 to 2.06 wt. % and a chrome content in a range of 0 to <10 wt. % and wherein the surface is optionally galvanized or alloy galvanized. The aqueous acidic composition includes water; from 2 to 500 g/L oxalic acid; and from 0.01 to 20 g/L of at least one catalyst based on guanidine, nitrate or combinations thereof, wherein a pickling removal of the aqueous acidic composition is in a range of 1 to 6 g/m2.

Abstract: The invention relates to fissure-detection agents for fault detection according to the penetration method of metallic and/or non-metallic components, which are a micro-emulsion comprising at least 10 wt. % of water A), at least 0.1 wt. % of at least one dye B), at least 5 wt. % of at least one substantially water-insoluble liquid phase C) and at least 2 wt. % of at least one surfactant D) selected from non-ionic, anionic and/or amphoteric surfactants, the sum of all constituents being 100 wt. %, wherein the fissure-detection agent has a mean particle size in the range of 1 to 250 nm and a transparency of at least 70% at 600 nm. The invention also relates to the production of said fissure-detection agents, to a process for their preparation or/and disposal, and their use.

Abstract: The invention relates to a method for preparing metal workpieces for cold forming by first applying a phosphate layer and then applying a lubricant layer which has a major content in organic polymer material. The phosphate layer is formed by an aqueous acidic phosphating solution having a major content in calcium, magnesium or manganese and phosphate. The lubricant layer is formed by contacting the phosphated surface with an aqueous lubricant composition which has a content in organic polymer material based on ionomer and optionally also non-ionomer the organic polymer material used predominantly being monomers, oligomers, co-oligomers, polymers or copolymers based on ionomer, acrylic acid/methacrylic acid, epoxide, ethylene, polyamide, propylene, styrene, urethane, the ester or salt thereof. The invention also relates to the corresponding lubricant composition, to the lubricant layer produced thereof and to its use.

Abstract: A process for protecting an edge area, a soldered point, a weld seam or a repair point or for sealing a seam of one or more optionally interjoined strips, metal sheets or shaped parts, containing the steps of applying a coating mixture to at least a part of a surface of a metallic substrate, applying actinic radiation, and forming a firmly adhering, ductile, corrosion-preventing coating on the substrate.

Abstract: A metal surface treatment method for a metal base material in order to improve the uniformity of a cathodic electrodeposition coating film, the method including: a surface treatment step for forming a chemical conversion film on a metal base material by contacting the metal base material with a metal surface treatment composition including zirconium and/or titanium ions and an adhesive imparting agent characterized in being at least one selected from the group consisting of (A) silicon-containing compound, (B) adhesive imparting metal ion, and (C) adhesive imparting resin; and a heating/drying step to heat and dry the metal base material, on which the chemical conversion film is formed, at 60° C. to 190° C. for at least 30 seconds.

Abstract: A process for the coating of surfaces of a metallic component to be formed by contacting the surfaces of the metallic component prior to forming operation with an aqueous composition containing 80% by weight of at least one organic film-forming ionomeric polymer or copolymer, whereby the total organic polymeric material has an average acid number in the range from 20 to 300, optionally at least one further organic film-forming polymer different from the organic film-forming ionomeric polymer or copolymer; optionally a neutralizing agent; a low temperature corrosion inhibiting cross-linking agent and water. The pH of the aqueous composition at the beginning of the coating process is in the range from 6 to 10.5.

Abstract: 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.