Patents by Inventor Hans-Jürgen Wedemeyer

Hans-Jürgen 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).

  • 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
    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