Patents by Inventor Wolfgang Kruse

Wolfgang Kruse 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: 6649369
    Abstract: The present invention relates to a process for delaying the deactivation of glutaryl amidase during enzyme catalysis. The enzyme catalyst is, after maximum conversion of the substrate, separated off by filtration and can be reused in a subsequent reaction batch. In each reaction cycle, the enzyme catalyst loses activity. The inactivation of the enzyme catalyst can be delayed by bringing it into contact with a thiol during the reaction.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 18, 2003
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Jürgen Bongs, Johannes Meiwes, Wolfgang Kruse, Klaus-Peter Koller
  • Publication number: 20020155566
    Abstract: The present invention relates to a process for delaying the deactivation of glutaryl amidase during enzyme catalysis. The enzyme catalyst is, after maximum conversion of the substrate, separated off by filtration and can be reused in a subsequent reaction batch. In each reaction cycle, the enzyme catalyst loses activity. The inactivation of the enzyme catalyst can be delayed by bringing it into contact with a thiol during the reaction.
    Type: Application
    Filed: April 9, 2002
    Publication date: October 24, 2002
    Applicant: Aventis Pharma Deutschland GmbH
    Inventors: Jurgen Bongs, Johannes Meiwes, Wolfgang Kruse, Klaus-Peter Koller
  • Patent number: 6395507
    Abstract: A process is provided for delaying the deactivation of glutaryl amidase during catalysis. The amidase is, after maximum conversion of a substrate, separated off by filtration and can be reused in a subsequent reaction batch. In each reaction cycle, the amidase loses activity. The inactivation of the amidase can be delayed by bringing it into contact with a thiol during the reaction. The thiol is preferably 2-mercaptoethanol or cysteine.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: May 28, 2002
    Assignee: Aventis Pharma Deutschland GmbH
    Inventors: Jürgen Bongs, Johannes Meiwes, Wolfgang Kruse, Klaus-Peter Koller
  • Patent number: 5795750
    Abstract: In a process for the continuous enzyme-catalyticzed enzymatic production of hydrophobic products in an aqueous solution of a reaction mixture, the product is extracted from the product containing reaction mixture by way of a product-permeable microporous membrane into an organic solvent and the product-depleted reaction mixture is recycled.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: August 18, 1998
    Assignee: Forschungzentrum Julich GmbH
    Inventors: Wolfgang Kruse, Udo Kragl, Christian Wandrey
  • Patent number: 5378780
    Abstract: Paste-forming polymers of vinyl chloride are produced by discontinuous polymerization in the presence of a conventional predispersion of emulsifier, dispersion acid, water and optional monomer-soluble catalyst. The predispersion is prepared only with 30-80% by weight of the amount of emulsifier required in total. The remainder of the emulsifier, or a component forming the emulsifier, is added in metered amounts as an aqueous solution batchwise or continously to the polymerization mixture after a conversion of 10-60% by weight.The thus-obtained polymers lead to pastes of an especially low viscosity, even under high shear stress, and result in open-cell plasticized foam materials having a good elastic memory capacity.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: January 3, 1995
    Assignee: Huls Aktiengesellschaft
    Inventors: Wolfgang A. Kruse, Burkhard Boeke
  • Patent number: 4804728
    Abstract: A process for the production of paste-forming polymers of vinyl chloride by emulsion or microsuspension polymerization, utilizes as the auxiliary dispersant an alcohol glycol ether of the general formula ##STR1## wherein R is an alkyl- or alkylene residue of 16-30 carbon atoms, R.sub.1 is H or an alkyl residue of 1-2 carbon atoms, and n is a number from 1 to 3. It is also possible to employ the predispersion method. The polymers yield pastes of low viscosity and an almost Newtonian fluid characteristic, and final products exhibiting a high resistance to fogging.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: February 14, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Wolfgang A. Kruse, Burkhard Boeke