Abstract: A method of treating metallic workpieces with an anodizing solution, compositions of the anodizing solution and the coatings prepared with this anodizing solution for anodizing metallic surfaces, especially surfaces of magnesium, magnesium alloys, aluminum and aluminum alloys, are disclosed. The compositions are basic aqueous solutions comprising a water-soluble inorganic hydroxide, phosphorus and oxygen containing anions, at least one surfactant and an alkaline buffer based on at least one alkaline hydrolyzed silane, on at least one alcohol showing at least one alkaline radical group or on a mixture of them.
Type:
Grant
Filed:
March 26, 2010
Date of Patent:
February 3, 2015
Assignees:
Chemetall GmbH, Alonim Holding Agricultural Cooperative Society Ltd.
Abstract: A crystalline, completely soluble lithium bis(oxalato)horate (LiBOB), to a method for producing the same and to the use of the lithium bis(oxalato)borate.
Abstract: The invention relates to conducting salts which contain lithium bis(oxalato)borate (LiBOB) and mixed lithium borate salts of the type of formula (I), wherein the portion of compound (I) in the conducting salt is 0.01 to 20 mole-% and X in formula (I) is a bridge linked with the boron via two oxygen atoms, selected from formula (II), wherein Y1 and Y2 together=O, m=1, n=0 and Y3 and Y4 independently represent H or an alkyl group with 1 to 5 C atoms, or Y1, Y2, Y3, Y4 independently represent OR (with R=alkyl group with to 5 C atoms), or H or an alkyl group with 1 to 5 C atoms, and wherein m=0 or 1, n=0 or 1, or Y2 and Y3 are members of a 5- or 6-membered aromatic or heteroaromatic ring (with N, O or S as the hetero element) which can be optionally substituted with alkyl, alkoxy, carboxy or nitrile, and if so, Y1 and Y4 are not applicable and n>0, m=0 or 1. The invention also relates to a method for producing the inventive conducting salts.
Type:
Grant
Filed:
March 8, 2005
Date of Patent:
February 3, 2015
Assignee:
Chemetall GmbH
Inventors:
Jan-Christoph Panitz, Andreas Pötschke, Rainer Dietz, Ulrich Wietelmann
Abstract: A process for coating a metallic surface with an aqueous composition containing a) as the main component, an organic film former consisting of at least one synthetic resin, 70 to 100 wt. % of the content of synthetic resin(s) in the organic film former comprising at least one water-soluble or/and water-dispersible synthetic resin in the form of polymers, copolymers, block copolymers or/and graft copolymers based on synthetic resins selected from the group consisting of polycarbonate, polyurethane, ionomer, poly(meth)acrylate, polyester, polyether or/and polystyrene, the content of polycarbonate and polyurethane being at least 10 wt. % each, at least one long-chain alcohol as film-forming aid for the organic film former, a crosslinker, a lubricant, and a substance based on silane, silanol or/and siloxane or/and at least one inorganic compound in particle form with an average particle diameter measured on a scanning electron microscope in the range from 0.005 to 0.
Abstract: 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.
Type:
Grant
Filed:
December 1, 2010
Date of Patent:
January 13, 2015
Assignee:
Chemetall GmbH
Inventors:
Manfred Walter, Axel Schöne, Christian Jung, Kevin Brown, Thomas Kolberg, Norbert Kliehm
Abstract: The invention relates to a process for coating metallic surfaces with a composition containing silane/silanol/siloxane/polysiloxane, the composition consisting essentially of a) at least one compound selected from silanes, silanols, siloxanes and polysiloxanes, b) at least two compounds selected from compounds containing titanium, hafnium, zirconium, aluminium and/or boron, and optionally c) at least one type of cation selected from cations of metals of subgroups 1 to 3 and 5 to 8, including lanthanides, and of main group 2 of the periodic table of the elements, and/or at least one corresponding compound, d) at least one organic compound selected from monomers, oligomers, polymers, copolymers and block copolymers, and/or e) at least one substance that influences the pH, as well as f) water, and g) optionally at least one organic solvent. The invention further relates to corresponding aqueous compositions.
Type:
Application
Filed:
May 15, 2014
Publication date:
January 8, 2015
Applicant:
Chemetall GmbH
Inventors:
Thomas KOLBERG, Manfred WALTER, Peter SCHUBACH
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 one water soluble, water-containing or water-binding oxide or silicate 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.
Abstract: The present invention relates to lithium salt-containing rare earth halide solutions in aprotic solvents, processes for production thereof and also use thereof.
Abstract: The invention relates to a solution of lithium aluminum hydride in 2-methyltetrahydrofuran or a solvent mixture containing 2-methyltetrahydrofuran, a method for producing said solution and use of the same.
Type:
Grant
Filed:
September 1, 2006
Date of Patent:
September 23, 2014
Assignee:
Chemetall GmbH
Inventors:
Uwe Lischka, Alexander Murso, Ulrich Wietelmann
Abstract: 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.
Abstract: A tool and 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. Corrosion protecting coating A has been at least partially removed in area Z. Corrosion protecting coating B contains a silicon compound and is applied as a solution or dispersion containing a silane, a silanol, a siloxane, a polysiloxane or mixture thereof on at least a part of the area Z. A further corrosion protecting coating C may be applied. The tool is provided for use in the process.
Abstract: 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 1st to 3rd and 5th to 8th sub-groups including the lanthanides and the 2nd main 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.
Type:
Grant
Filed:
April 6, 2011
Date of Patent:
July 22, 2014
Assignee:
Chemetall GmbH
Inventors:
Thomas Kolberg, Manfred Walter, Peter Schubach
Abstract: 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.
Type:
Grant
Filed:
September 26, 2008
Date of Patent:
July 22, 2014
Assignee:
Chemetall GmbH
Inventors:
Toshio Inbe, Hiroshi Kameda, Thomas Kolberg
Abstract: A chemical conversion treatment agent for surface treatment of a metal substrate, comprising: at least one metal element selected from the group consisting of zirconium, titanium, and hafnium; fluorine element; and a co-condensate of a silane coupling agent (A) and a silane coupling agent (B), wherein the silane coupling agent (A) is a silane coupling agent having a tri- or di-alkoxysilane group and an amino group, and the silane coupling agent (B) is a silane coupling agent represented by the following general formula (1): [in the formula, R represents an alkylene groups having 1 to 5 carbon atoms or the like, Z represents a cyclohexyl group optionally having an epoxy group or the like, a, b, and c each represent an integer of 0 to 3, provided that a sum of a, b, and c is 3, and a sum of a and b is 2 to 3, and x represents an integer of 1 to 3].
Abstract: The invention concerns a process for coating a metallic surface with an aqueous composition, wherein in addition to water the composition contains a) as the main component, an organic film former consisting of at least one synthetic resin, 70 to 100 wt. % of the content of synthetic resin(s) in the organic film former comprising at least one water-soluble or/and water-dispersible synthetic resin in the form of polymers, copolymers, block copolymers or/and graft copolymers based on synthetic resins selected from the group consisting of polycarbonate, polyurethane, ionomer, poly(meth)acrylate, polyester, polyether or/and polystyrene, the content of polycarbonate and polyurethane being at least 10 wt.
Abstract: The present application concerns an aqueous metalworking composition comprising in a concentrate or after dilution of a concentrate with water in a diluent: 0.002 to 40% by weight of component (a) which is a lubricity agent comprising at least one water-insoluble compound (a) having at least one hydrophobic aliphatic chain and at least one polar group and having a water solubility at 20° C. of less than 0.1 g/liter; 0.002 to 40% by weight of component (b) comprising at least one water-soluble corrosion inhibiting compound (b) having a water-solubility at 20° C. of more than 0.1 g/liter; 0.002 to 45% by weight of at least one emulsifying and dispersing agent (c) which contains at least one emulsifying and/or dispersing compound (c) which is water-soluble, water-miscible or water-dispersable and which is selected from the group consisting of non-ionic, anionic and zwitterionic surfactants; 0.
Abstract: The invention relates to a novel method for producing a carbon-doped lithium sulfide powder, according to which elementary lithium is reacted with elementary sulfur and/or a sulfur-containing compound selected from the group containing CS2, COS, SO2 and SO, in a liquid state, in a hydrocarbon solvent except naphthalene. The products of the method according to the invention are used to produce lithium battery electrodes or a lithium-ion-conducting solid.
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:
Application
Filed:
May 29, 2012
Publication date:
March 27, 2014
Applicant:
CHEMETALL GMBH
Inventors:
Peter Rittmeyer, Ulrich Wietelmann, Uwe Lischka, Dieter Hauk, Bernhard Füger, Armin Stoll, Dirk Dawidowski
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:
Application
Filed:
October 25, 2013
Publication date:
February 20, 2014
Applicant:
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.