Patents by Inventor Holger Ziehe

Holger Ziehe 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 a latent heat storage material and dialkyl ether as a latent heat storage material
    Patent number: 10654765
    Abstract: The invention relates to a method for producing latent heat storage material from linear alcohols by dehydrating to dialkyl ethers or to olefins, and hydrogenating to paraffins and dialkyl ether as a latent heat storage material.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: May 19, 2020
    Assignee: Sasol Germany GmbH
    Inventors: Holger Ziehe, Achim Weitze, Thoralf Gross
  • Amidinate and guanidinate complexes, their use as chain transfer polymerization catalysts and long chain alcohols obtained by such process
    Patent number: 9579640
    Abstract: The present invention is concerned with a catalyst composition comprising titanium-, zirconium- and/or hafnium amidinate complexes and/or titanium-, zirconium- and/or hafnium guanidinate complexes and organo aluminium and/or organic zinc compounds, a coordinative chain transfer polymerization (CCTP) process employing the catalyst composition as well as long chain aluminium alkyls and subsequent alcohols obtained by such process.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 28, 2017
    Assignee: Sasol Performance Chemicals GmbH
    Inventors: Thoralf Gross, Holger Ziehe, Rhett Kempe, Winfried Kretschmer, Christian Hubner
  • Method for Producing a Latent Heat Storage Material and Dialkyl Ether as a Latent Heat Storage Material
    Publication number: 20160257628
    Abstract: The invention relates to a method for producing latent heat storage material from linear alcohols by dehydrating to dialkyl ethers or to olefins, and hydrogenating to paraffins and dialkyl ether as a latent heat storage material.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Inventors: Holger Ziehe, Achim Weitze, Thoralf Gross
  • Method for the purpose of a catalytic condensation or coupling
    Patent number: 9199903
    Abstract: The invention relates to a method for catalytically condensing organic compounds containing at least one oxo and/or hydroxyl function into CH acidic compounds and/or coupling said organic compounds to the CH acidic compounds in the presence of a catalyst which comprises an active carbon substrate provided with a metal. The method is suitable in particular for generating higher alcohols, aldehydes, ketones, and/or alkanes as well as mixtures thereof.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 1, 2015
    Assignees: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., SASOL GmbH
    Inventors: Axel Kraft, Andreas Menne, Klaas Breitkreuz, Thoralf Gross, Holger Ziehe
  • Amidinate and Guanidinate Complexes, Their Use as Chain Transfer Polymerization Catalysts and Long Chain Alcohols Obtained by Such Process
    Publication number: 20150148505
    Abstract: The present invention is concerned with a catalyst composition comprising titanium-, zirconium- and/or hafnium amidinate complexes and/or titanium-, zirconium- and/or hafnium guanidinate complexes and organo aluminium and/or organic zinc compounds, a coordinative chain transfer polymerization (CCTP) process employing the catalyst composition as well as long chain aluminium alkyls and subsequent alcohols obtained by such process.
    Type: Application
    Filed: June 3, 2013
    Publication date: May 28, 2015
    Inventors: Thoralf Gross, Holger Ziehe, Rhett Kempe, Winfried Kretschmer, Christian Hubner
  • METHOD FOR THE PURPOSE OF A CATALYTIC CONDENSATION OR COUPLING
    Publication number: 20140343325
    Abstract: The invention relates to a method for catalytically condensing organic compounds containing at least one oxo and/or hydroxyl function into CH acidic compounds and/or coupling said organic compounds to the CH acidic compounds in the presence of a catalyst which comprises an active carbon substrate provided with a metal. The method is suitable in particular for generating higher alcohols, aldehydes, ketones, and/or alkanes as well as mixtures thereof.
    Type: Application
    Filed: December 13, 2012
    Publication date: November 20, 2014
    Applicant: Fraunhofer Gesellschaft Zur Förderung der angewandtan Forschung e.V.
    Inventors: Axel Kraft, Andreas Menne, Klaas Breitkreuz, Thoralf Gross, Holger Ziehe
  • Method for Producing a Latent Heat Storage Material and Dialkyl Ether as a Latent Heat Storage Material
    Publication number: 20110056656
    Abstract: The invention relates to a method for producing latent heat storage material from linear alcohols by dehydrating to dialkyl ethers or to olefins, and hydrating to paraffins and dialkyl ether as a latent heat storage material.
    Type: Application
    Filed: January 15, 2009
    Publication date: March 10, 2011
    Inventors: Holger Ziehe, Achim Weitze, Thoralf Gross
  • Method for the production of primary long-chain alcohols
    Patent number: 7718834
    Abstract: A method for preparing linear long chain fatty alcohols having 20 to 40 carbon atoms by a growth reaction of ethylene on aluminum compounds.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: May 18, 2010
    Inventor: Holger Ziehe
  • Method for the Production of Primary Long-Chain Alcohols
    Publication number: 20080293977
    Abstract: The invention relates to a method for preparing linear long chain fatty alcohols having 20 to 40 carbon atoms by a growth reaction of ethylene on aluminum compounds.
    Type: Application
    Filed: June 22, 2005
    Publication date: November 27, 2008
    Inventor: Holger Ziehe