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. The invention relates to a method for coating metal surfaces of substrates, comprising or consisting of the following steps: I. providing a substrate having a cleaned metal surface, II. contacting and coating metal surfaces with an aqueous composition in the form of a dispersion and/or suspension, IX. optionally rinsing the organic coating, and X. drying and/or baking the organic coating or XI. optionally drying the organic coating and coating with a coating composition of the same type or a further coating composition before a drying process and/or baking process, wherein in step II the coating is performed with an aqueous composition in the form of a dispersion and/or suspension containing 2.5 to 45 wt % of at least one non-ionic stabilized binder and 0.1 to 2.0 wt % of a gelling agent, wherein the aqueous composition has a pH value in the range of 0.
Type:
Application
Filed:
July 10, 2014
Publication date:
June 9, 2016
Applicant:
Chemetall GMBH
Inventors:
Daniel Wasserfallen, Michael Schwamb, Aliaksandr Frenkel, Vera Sotke, Wolfgang Bremser, Martin Droll, Oliver Seewald, Ron Eilinghoff, Stephanie Gerold, Evgenija Niesen, Lars Schachtsiek, Manuel Traut
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.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
June 7, 2016
Assignee:
Chemetall GmbH
Inventors:
Thomas Kolberg, Eckart Schoenfelder, Olaf Dahlenburg, Manfred Walter
Abstract: A process for producing a repair coating on at least one metallic surface that is coated with at least one corrosion protection coating A applied with at least one composition selected from the group of pretreatment compositions, of organic compositions and of silicon compound(s) containing compositions, whereby the at least one corrosion protecting coating A has been at least partially removed in the area Z, whereby a thin corrosion protecting coating B containing at least one silicon compound is applied with a solution or dispersion containing at least one silane, at least one silanol, at least one siloxane, at least one polysiloxane or any mixture of these (=“siloxane composition”) on at least a part of the area Z.
Abstract: A method for manufacturing alloy powders based on titanium, zirconium and hafnium alloyed with the elements Ni, Cu, Ta, W, Re, Os, and Ir is described in which an oxide of Ti and Zr and Hf is mixed with a metal powder of the elements named and with a reducing agent, and wherein this mixture is heated in a furnace, optionally under a argonate atmosphere or, optionally under hydrogen atmosphere until the reducing reaction begins, the reaction product is leached and then washed and dried, wherein the oxide used has an average grain size of 0.5 to 20 ?m, a specific surface area according to BET of 0.5 20 m2/g and a minimum content of 94 wet. ?%. An easy to produce powder, in particular in relation to the ignition point and burning time, is produced.
Type:
Grant
Filed:
February 27, 2009
Date of Patent:
March 15, 2016
Assignee:
Chemetall GmbH
Inventors:
Ahmet Karaca, Bernd Sermond, Gerhard Wilfing
Abstract: A process for producing a repair coating on at least one metallic surface that is coated with at least one corrosion protecting coating A applied with at least one composition selected from the group of pretreatment compositions, of organic compositions and of silicon compound(s) containing compositions, whereby the at least one corrosion protecting coating A has been at least partially removed in the area Z, whereby a thin corrosion protecting coating B containing at least one silicon compound is applied with a solution or dispersion containing a silane, a silanol, a siloxane, or a polysiloxane on at least a part of the area Z. A further corrosion protecting coating C may be applied.
Abstract: A method of using a silane additive in an aqueous cleaning composition, in an aqueous rinsing liquid and/or in an aqueous activation composition for preventing pinholes on zinc-containing metallic surfaces, wherein the silane content in at least one of these aqueous compositions is in a range of 0.001 to 5 g/l.
Type:
Application
Filed:
February 7, 2014
Publication date:
December 17, 2015
Applicant:
CHEMETALL GMBH
Inventors:
Martin MROCHEM, Jürgen SPECHT, Hardy WIETZORECK, Olaf DAHLENBURG
Abstract: The invention relates to a method for coating a metallic surface with an aqueous composition for pretreating before applying another coating or for treating said metallic surface. In addition to water, the composition contains: a) at least one hydrolyzable or at least partially hydrolyzed silane; b) at least one metal chelate; c) at least one organic film former, and; d) at least one long-chain alcohol that serves as a film forming aid. The unsoiled, scoured, cleaned and/or pretreated metallic surface is brought into contact with the aqueous composition so that a film forms on the metallic surface, which is subsequently dried, compacted in part or completely by film formation and, if necessary, additionally hardened. The dried and, if necessary, additionally hardened film has a layer thickness ranging from 0.01 to 10 ?m. The invention also relates to corresponding aqueous compositions.
Abstract: A hydride anode containing aluminium of the formula (M1)m(M2)3?mAlH6, where M1 and M2 are an alkali element selected independently from one another from Li, Na and K; m is a number between 1 and 3; n is a number ?3, and galvanic elements, such as lithium batteries, containing as anodes said hydride anodes containing aluminum. Methods for the production of galvanic elements having hydride anodes containing aluminium is also provided.
Abstract: This invention relates to low-viscosity, concentrated complex solutions containing magnesium, which are produced by reacting a magnesium alkoside with a carboxylic acid halogenide in a hydrocarbon-based solvent, and to a method for producing the same.
Abstract: A surface treatment agent and a surface treatment method capable of imparting excellent corrosion resistance while enhancing adhesion between a surface of a metal substrate and a resin-containing layer. The surface treatment agent for treating a surface of a metal substrate includes an acrylic resin having a carboxyl group and a hydroxyl group, an oxazoline group-containing compound and metal particles containing at least one of Nb, Ca and Nd. The metal may be in the form of a niobium oxide sol.
Abstract: A surface conditioning composition for use in surface conditioning of a metal prior to being subjected to a phosphate-based chemical conversion treatment, in which the surface conditioning composition has a pH of 3 to 12, and includes at least one kind of zinc compound particles selected from the group consisting of zinc oxide particles, zinc hydroxide particles, and basic zinc carbonate particles; phosphoric acid and/or condensed phosphoric acid; and an amine compound having a specific structure and in which the zinc compound particles are dispersed and stabilized by the phosphoric acid and/or condensed phosphoric acid, and the amine compound.
Abstract: A crystalline, completely soluble lithium bis(oxalato)borate (LiBOB), to a method for producing the same and to the use of the lithium bis(oxalato)borate.
Abstract: A surface-passivated lithium metal, which has a composite top layer containing or consisting of at least two poorly soluble components containing lithium. Production of the surface-passivated lithium metal such that lithium metal below 180° C., thus in the solid state, is transformed into an inert, aprotic solvent with a passivating agent of the general formula Li[P(C2O4)?x/2Fx] where x=0, 2, or 4 is also disclosed.
Abstract: The pretreatment agent for use before forming a coat by paint application of the present invention contains (A) one or more metal elements selected from a group consisting of zirconium, titanium and hafnium, (B) fluorine, (C) one or more coupling agents selected from an amino group-containing silane coupling agent, its hydrolyzate, and its polymer, and (D) a component of at least one of an allylamine and a polyallylamine, in which the ratio by mass of the coupling agent (C) to the component (D), (C/D) is 1 or more. The coating method by paint application of the present invention includes a chemical conversion treatment step of chemically treating a metal substrate with the pretreatment agent, and a step of forming a coat by paint application on the chemically-treated metal substrate.
Abstract: 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.
Abstract: The invention relates to a novel process for preparing lithium sulfide and to the use thereof, wherein a reaction of lithium-containing strong bases with hydrogen sulfide is undertaken in an aprotic organic solvent within the temperature range from ?20 to 120° C. under inert conditions. The lithium sulfide obtained by the process is used as a positive material in a galvanic element or for the synthesis of Li ion-conductive solids, especially for the synthesis of glasses, glass ceramics or crystalline products.
Type:
Grant
Filed:
May 29, 2012
Date of Patent:
April 28, 2015
Assignee:
Chemetall GmbH
Inventors:
Peter Rittmeyer, Ulrich Wietelmann, Uwe Lischka, Dieter Hauk, Bernhard Füger, Armin Stoll, Dirk Dawidowski
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.
Type:
Application
Filed:
February 7, 2013
Publication date:
March 19, 2015
Applicant:
CHEMETALL GMBH
Inventors:
Daniel Wasserfallen, Michael Schwamb, Aliaksandr Frenkel, Vera Sotke, Wolfgang Bremser, Martin Droll, Oliver Seewald, Ron Eilinghoff, Stephanie Gerold, Evgenija Niesen
Abstract: A method for curing a mixture of a matrix and a curing agent based on sulfur-containing polymers on command and so rapidly that a tack-free surface results. A method for coating a substrate with the composition and of curing a sealant is also provided. The matrix and curing agent containing sulfur-containing polymers. The mixture is an uncured mixture with an isocyanate content, and the matrix is uncured and contains a mercaptan-terminated base polymer based on at least one polyether, polythioether, polysulfide or copolymers thereof. The uncured matrix, the curing agent, or both contain at least one photoinitiator based on sterically-inhibited tertiary amines. The mixture cures in the temperature range of ?10 to +70° C. after the high-energy actinic radiation is applied. Corresponding matrices A, mixtures B, curing agents, sealant systems, and substrates, e.g., aircraft are contemplated.
Type:
Application
Filed:
April 9, 2013
Publication date:
March 5, 2015
Applicant:
CHEMETALL GMBH
Inventors:
Miroslav Kralev, Björn Sievers, Peter Bons, Francisco Diez
Abstract: A concentrated solution of mixed alkaline-earth alkoxide compounds M(OCH2R6)2-x(OR7)x and an aluminum compound Al(OCH2R6)3-y(OR7)y, in aprotic solvents, wherein M is an alkaline-earth metal selected from among Mg, Ca, Ba, Sr; OCH2R6 is an alkoxide group comprising at least 3 and at most 40 C atoms and having a branch at the 2-position relative to the O-function, in other words R6 is CHR8R9, wherein R8, R9 are alkyl groups C1-C18 independently of each other; R7 is an alkyl group having 2-15 C atoms that is either linear or has a branch at ?the 3-position; and the sum of x and y is a number between 0.01 and 0.8.
Type:
Grant
Filed:
June 17, 2010
Date of Patent:
February 17, 2015
Assignee:
Chemetall GmbH
Inventors:
Ulrich Wietelmann, Ute Emmel, Jens Röder, Martin Steinbild, Kay Papstein
Abstract: The invention relates to a method for preparing metal workpieces for cold forming by applying a lubricant layer either to a metal surface or to a metal surface which has been pre-coated with e.g., a conversion coating. The lubricant layer is formed by contacting the surface with an aqueous lubricant composition which has a content in at least two waxes having distinct properties and a content in organic polymer material, the organic polymer material used predominantly being monomers, oligomers, co-oligomers, polymers and copolymers based on ionomer, acrylic acid/methacrylic acid, epoxide, ethylene, propylene, styrene, urethane, the ester or salt thereof. The invention to the corresponding lubricant composition, to the lubricant layer produced thereof and to its use.