Patents by Inventor Uwe Lischka

Uwe Lischka 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).

  • 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
  • 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: 20090140201
    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: Application
    Filed: September 1, 2006
    Publication date: June 4, 2009
    Inventors: Uwe Lischka, Alexander Murso, Ulrich Wietelmann
  • Publication number: 20090112027
    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: Application
    Filed: September 1, 2006
    Publication date: April 30, 2009
    Inventors: Rainer Dietz, Ute Emmel, Ulrich Wietelmann, Uwe Lischka
  • Publication number: 20080258319
    Abstract: A diorganomagnesium-containing synthesis means, a method for its preparation and its use.
    Type: Application
    Filed: October 16, 2006
    Publication date: October 23, 2008
    Inventors: Sebastian Lang, Alexander Murso, Ulrich Wietelmann, Uwe Lischka, Jens Roder
  • Publication number: 20080125557
    Abstract: A method for the production of water-free rare earther metal halogenides by reacting rare earth metal oxides with a halogentation agent.
    Type: Application
    Filed: December 12, 2005
    Publication date: May 29, 2008
    Inventors: Uwe Lischka, Jens Roder, Ulrich Wietelmann
  • Publication number: 20070166622
    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: Application
    Filed: March 14, 2007
    Publication date: July 19, 2007
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Patent number: 7208131
    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: February 15, 2002
    Date of Patent: April 24, 2007
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Publication number: 20060142608
    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: February 16, 2006
    Publication date: June 29, 2006
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Publication number: 20060138056
    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: Application
    Filed: February 16, 2006
    Publication date: June 29, 2006
    Inventors: Ulrich Wietelmann, Klaus Schade, Uwe Lischka
  • Patent number: 6984367
    Abstract: A process is described for the preparation of lithium iodide solutions by reacting a lithium-containing substance with elemental iodine, the lithium iodide being prepared in an aprotic solvent that can be used as a solvent in a liquid electrolyte solution.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: January 10, 2006
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Uwe Lischka
  • Publication number: 20040116384
    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
    Type: Application
    Filed: December 18, 2003
    Publication date: June 17, 2004
    Inventors: Ulrich Wietelmann, Uwe Lischka, Klaus Schade, Jan-Christoph Panitz
  • Publication number: 20040096746
    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: Application
    Filed: June 13, 2003
    Publication date: May 20, 2004
    Inventors: Ulrich Wietelmann, Klaus Schade, Uwe Lischka