Patents by Inventor Hans-Jurgen Wedemeyer

Hans-Jurgen Wedemeyer 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).

  • Non-agglomerating mixed bed ion exchangers
    Patent number: 8530530
    Abstract: The invention relates to a process for producing non-agglomerating mixed bed ion exchangers or mixed bed components.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: September 10, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wolfgang Zarges, Stefan Hilger, Pierre Vanhoorne, Hans-Jurgen Wedemeyer
  • Process for producing cation exchangers
    Patent number: 8362182
    Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: January 29, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Pierre Vanhoorne, Hans-Jurgen Wedemeyer
  • PROCESS FOR PRODUCING CATION EXCHANGERS
    Publication number: 20120238649
    Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Pierre Vanhoorne, Hans-Jürgen Wedemeyer
  • Process for producing cation exchangers
    Patent number: 8207284
    Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: June 26, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventors: Pierre Vanhoorne, Hans-Jurgen Wedemeyer
  • PROCESS FOR PRODUCING CATION EXCHANGERS
    Publication number: 20120029100
    Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.
    Type: Application
    Filed: October 7, 2011
    Publication date: February 2, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Pierre Vanhoorne, Hans-Jürgen Wedemeyer
  • NON-AGGLOMERATING MIXED BED ION EXCHANGERS
    Publication number: 20110278493
    Abstract: The invention relates to a process for producing non-agglomerating mixed bed ion exchangers or mixed bed components.
    Type: Application
    Filed: April 25, 2011
    Publication date: November 17, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Wolfgang Zarges, Stefan Hilger, Pierre Vanhoorne, Hans-Jürgen Wedemeyer
  • PROCESS FOR PRODUCING CATION EXCHANGERS
    Publication number: 20090156798
    Abstract: Strongly acidic cation exchangers with high mechanical, osmotic and oxidation stability can be prepared by sulfonating bead polymers formed from one or more vinylaromatic monomer(s), one or more crosslinker(s) and from 0.2 to 20% by weight of one or more vinyl ethers and/or vinyl esters.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 18, 2009
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Pierre Vanhoorne, Hans-Jurgen Wedemeyer
  • Non-agglomerating mixed bed ion exchangers
    Publication number: 20080009555
    Abstract: The invention relates to a process for producing non-agglomerating mixed bed ion exchangers or mixed bed components.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 10, 2008
    Inventors: Wolfgang Zarges, Stefan Hilger, Pierre Vanhoorne, Hans-Jurgen Wedemeyer