Patents by Inventor Andre Majdalani

Andre Majdalani 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).

  • Method for producing alkali metal monohydridoborates and monohydridoaluminates
    Patent number: 6713642
    Abstract: The invention relates to a method for producing compounds of general formula (A) by reacting an alkali metal hydride with a compound (B) during which the reaction is carried out in the presence of a catalyst that contains boron, whereby: M represents Li, Na, K, Rb or Cs; E represents B or Al, and; X1, X2, X3, independent of one another, represent a secondary or tertiary alkyl group, which is comprised of 2 to 10 atoms, or represent a phenyl group which itself can be alkyl-substituted or they represent an alkoxy group, and the catalyst, which contains boron, or the conversion product thereof with MH is capable of acting as a hydride transfer agent.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: March 30, 2004
    Assignee: Chemetall GmbH
    Inventors: Ulrich Wietelmann, Dieter Hauk, Andre Majdalani, Uwe Lischka
  • Method for producing alkali metal monohydridoborates and monohydridoaluminates
    Publication number: 20030166956
    Abstract: The invention relates to a method for producing compounds of general formula (A) by reacting an alkali metal hydride with a compound (B) during which the reaction is carried out in the presence of a catalyst that contains boron, whereby: M represents Li, Na, K, Rb or Cs; E represents B or Al, and; X1, X2, X3, independent of one another, represent a secondary or tertiary alkyl group, which is comprised of 2 to 10 atoms, or represent a phenyl group which itself can be alkyl-substituted or they represent an alkoxy group, and the catalyst, which contains boron, or the conversion product thereof with MH is capable of acting as a hydride transfer agent.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 4, 2003
    Inventors: Ulrich Wietelmann, Dieter Hauk, Andre Majdalani, Uwe Lischka