Patents by Inventor Ulrich Wietelmann

Ulrich Wietelmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120149553
    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: Application
    Filed: June 17, 2010
    Publication date: June 14, 2012
    Inventors: Ulrich Wietelmann, Ute Emmel, Jens Röder, Martin Steinbild, Kay Papstein
  • Patent number: 8168806
    Abstract: Boron chelate complexes of the general formula are described, where X is either —C(R1R2)— or —C(R1R2)—C(?O)—, in which R1, R2 independently of one another denote H, alkyl (with 1 to 5 C atoms), aryl, silyl or a polymer, and one of the alkyl radicals R1 or R2 may be bonded to a further chelatoborate radical, or X denotes 1,2-aryl with up to two substituents S in the positions 3 to 6 in which S1, S2 independently of one another denote alkyl (with 1 to 5 C atoms), fluorine or a polymer, as well as M+ denotes Li+, Na+, K+, Rb+, Cs+ or [(R3R4R5R6)N]+ or H+, where R3, R4, R5, R6 independently of one another denote H or alkyl with preferably 1 to 4 C atoms.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 1, 2012
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Publication number: 20120082900
    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 %.
    Type: Application
    Filed: February 17, 2010
    Publication date: April 5, 2012
    Inventors: Ulrich Wietelmann, Thorsten Buhrmester, Ute Emmel, Rebecca Metzger
  • Patent number: 8148286
    Abstract: The invention relates to an activated alkaline earth metal, to a method for its production and the use of the activated alkaline earth metal for the preparation of Grignard compounds and organoalkaline earth metal compounds.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: April 3, 2012
    Assignee: Chemetall GmbH
    Inventors: Rainer Dietz, Ute Emmel, Ulrich Wietelmann, Uwe Lischka
  • Publication number: 20110178337
    Abstract: The present invention relates to lithium salt-containing rare earth halide solutions in aprotic solvents, processes for production thereof and also use thereof.
    Type: Application
    Filed: October 7, 2009
    Publication date: July 21, 2011
    Inventor: Ulrich Wietelmann
  • Patent number: 7982046
    Abstract: A method for producing functionalized CH-acidic five-ring heterocycles, the resultant five-ring heterocycles and the use thereof for producing pharmaceuticals and crop protection preparations.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: July 19, 2011
    Assignee: Chemetall GmbH
    Inventors: Ute Emmel, Peter Rittmeyer, Ulrich Wietelmann
  • Patent number: 7807723
    Abstract: Water-free metal oxide colloids or metal oxide polymers of the formula [M(O)X3X4]n (1) in an aprotic, organic solvent or solvent mixture, wherein M is Si, Ge, Sn, Ti, Zr or Hf; and X3 and X4 are independently O1/2, H, alkoxy (—OR), wherein R represents an organo radical having 1-20 C-atoms, alkyl having 1-20 C atoms or aryl having 6-C atoms, wherein the alkyl- or aryl radicals an include one or several other halogen substituents, selected from the group of F, Cl, Br or I; and n is from 10-1.000.000.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: October 5, 2010
    Assignee: Chemetall GmbH
    Inventors: Uwe Lischka, Jens Röder, Ulrich Wietelmann
  • Patent number: 7799723
    Abstract: This invention relates to a process for preparing magnesium alkoxide granulates. The process includes the steps of reacting magnesium metal with at least one compound of formula AlR3-nHaln and an alcohol in a non-coordinating solvent. R is an alkyl or aryl radical, Hal is a halogen radical and n is in the range of between 0 and 2.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: September 21, 2010
    Assignee: Chemetall GmbH
    Inventors: Rainer Dietz, Ute Emmel, Ulrich Wietelmann, Gerd Kr{hacek over (a)}mer
  • Patent number: 7794632
    Abstract: A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: September 14, 2010
    Assignee: Chemetall GmbH
    Inventors: Ute Emmel, Wilfried Weiss, Ulrich Wietelmann, Dirk Dawidowski
  • Publication number: 20100185025
    Abstract: The present invention relates to a process for the preparation of lithium alcoholates solution.
    Type: Application
    Filed: July 31, 2008
    Publication date: July 22, 2010
    Inventors: Dirk Dawidowski, Ulrich Wietelmann, Peter Rittmeyer
  • Patent number: 7759509
    Abstract: The invention relates to a highly reactive zinc form, to a method for the production thereof, and to the use of said highly reactive zinc form in synthetic chemistry.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: July 20, 2010
    Assignee: Chemetall GmbH
    Inventors: Sebastian Lang, Alexander Murso, Ulrich Wietelmann
  • Publication number: 20100168476
    Abstract: Boron chelate complexes of the general formula are described, where X is either —C(R1R2)— or —C(R1R2)—C(?O)—, in which R1, R2 independently of one another denote H, alkyl (with 1 to 5 C atoms), aryl, silyl or a polymer, and one of the alkyl radicals R1 or R2 may be bonded to a further chelatoborate radical, or X denotes 1,2-aryl with up to two substituents S in the positions 3 to 6 in which S1, S2 independently of one another denote alkyl (with 1 to 5 C atoms), fluorine or a polymer, as well as M+ denotes Li+, Na+, K+, Rb+, Cs+ or [(R3R4R5R6)N]+ or H+, where R3, R4, R5, R6 independently of one another denote H or alkyl with preferably 1 to 4 C atoms.
    Type: Application
    Filed: December 10, 2009
    Publication date: July 1, 2010
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Patent number: 7744784
    Abstract: A diorganomagnesium-containing synthesis means, a method for its preparation and its use.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: June 29, 2010
    Assignee: Chemetall GmbH
    Inventors: Sebastian Lang, Alexander Murso, Ulrich Wietelmann, Uwe Lischka, Jens Röder
  • Patent number: 7737232
    Abstract: A method for the production of water-free rare earth metal halogenides by reacting rare earth metal oxides with a halogentation agent.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: June 15, 2010
    Assignee: Chemetall GmbH
    Inventors: Uwe Lischka, Jens Röder, Ulrich Wietelmann
  • Publication number: 20100143806
    Abstract: A mixture of low-acid lithium borate salts and lithium hydride, to methods for producing the same and to the use thereof for battery electrolytes.
    Type: Application
    Filed: July 3, 2008
    Publication date: June 10, 2010
    Inventors: Rainer Dietz, Ulrich Wietelmann, Uwe Lischka
  • Publication number: 20100145076
    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.
    Type: Application
    Filed: July 3, 2008
    Publication date: June 10, 2010
    Inventors: Rainer Dietz, Ulrich Wietelmann, Uwe Lischka, Thorsten Buhrmester, Klaus Schade
  • Patent number: 7709663
    Abstract: Boron chelate complexes of the general formula are described, where X is either —C(R1R2)— or —C(R1R2)—C(?O)—, in which R1, R2 independently of one another denote H, alkyl (with 1 to 5 C atoms), aryl, silyl or a polymer, and one of the alkyl radicals R1 or R2 may be bonded to a further chelatoborate radical, or X denotes 1,2-aryl with up to two substituents S in the positions 3 to 6 in which S1, S2 independently of one another denote alkyl (with 1 to 5 C atoms), fluorine or a polymer, as well as M+ denotes Li+, Na+, K+, Rb+, Cs+ or [(R3R4R5R6)N]+ or H+, where R3, R4, R5, R6 independently of one another denote H or alkyl with preferably 1 to 4 C atoms.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: May 4, 2010
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Patent number: 7674911
    Abstract: Methods are described for the production of hydrogen-bis(chelato)borates of the general formula H[BL1L2] and of alkali metal-bis(chelato)borates of the general formula M[BL1L2] where M=Li, Na, K, Rb, Cs L1=—OC(O)—(CR1R2)n—C(O)O— or —OC(O)—(CR3R4)—O— where n=0 or 1, R1, R2, R3, R4 independently of one another denote H, alkyl, aryl or silyl, L2=—OC(O)—(CR5R6)n—C(O)O— or —OC(O)—(CR7R8)—O— where n=0 or 1, R5, R6, R7, R8 independently of one another denote H, alkyl, aryl or silyl, wherein the respective raw materials are mixed in solid form without the addition of solvents and are reacted. Lithium-bis(oxalato)borate, lithium-bis(malonato)borate, caesium-bis-(oxalato)borate, caesium-bis-(malonato)borate and the mixed salts lithium(lactato,oxalato)borate and lithium(glycolato,oxalato)borate for example may be produced in this way.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: March 9, 2010
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Patent number: 7666310
    Abstract: A method is described for removing water and other protic impurities from an organic liquid electrolyte, wherein the organic liquid electrolyte is brought into contact with one or more insoluble alkali metal hydride(s) and the insoluble reaction by-products formed thereby are separated off.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: February 23, 2010
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Klaus Schade, Uwe Lischka
  • Publication number: 20100029875
    Abstract: A coordination compound of an element of the boron group, the production of the compound and methods of using the compound as an additive, stabilizer, catalyst, co-catalyst, activator for catalyst systems, conductivity improver, and electrolyte.
    Type: Application
    Filed: November 19, 2007
    Publication date: February 4, 2010
    Inventors: Jens Röder, Ulrich Wietelmann, Matthias Wagner, Wolfram Lerner, Hannes Vitze