Patents by Inventor Bernd-Reiner Paulke

Bernd-Reiner Paulke 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).

  • Polymer dispersion
    Patent number: 9005397
    Abstract: The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibers and then dewatering the obtained suspension.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: April 14, 2015
    Assignees: Akzo Nobel N.V., Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung E.V.
    Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd-Reiner Paulke
  • Process for preparing a polymer dispersion and a polymer dispersion
    Patent number: 8741999
    Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: June 3, 2014
    Assignees: Akzo Nobel Coatings International N.V., Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd-Reiner Paulke, Mathias Hahn
  • Multimodal imaging using a three compartment polymer nanoparticle with cell specificity
    Patent number: 8303931
    Abstract: The present invention pertains to a three compartment structured polymer nanoparticle (core-shell-corona) for multimodal imaging with specificity for cells or cellular components, thus enabling more advanced diagnostic approaches and targeted therapy on the cellular level without the use of additional biologically active materials.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: November 6, 2012
    Assignee: TOPASS GmbH
    Inventors: Ulrich Pison, Bernd-Reiner Paulke, Silvia Pietschmann, Regis Cartier, Lutz Kaufner
  • POLYMER DISPERSION
    Publication number: 20110174453
    Abstract: The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibres and then dewatering the obtained suspension.
    Type: Application
    Filed: August 19, 2009
    Publication date: July 21, 2011
    Applicants: AKZO NOBEL B.V., Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd-Reiner Paulke
  • Method for separating suspended solid materials from aqueous systems with colloidal flocculants
    Patent number: 7875189
    Abstract: The invention relates to a method for separating suspended solid materials from aqueous systems, in which the latter is mixed with a flocculant made of polymer colloidal particles with cationic surface charge and subsequently the flocculated material is separated from the aqueous system.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: January 25, 2011
    Assignees: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Leibniz-Institut fur Polymerforschung Dresden e.V.
    Inventors: Werner Jaeger, Bernd-Reiner Paulke, Simona Schwarz, Mandy Mende
  • MULTIMODAL IMAGING USING A THREE COMPARTMENT POLYMER NANOPARTICLE WITH CELL SPECIFICITY
    Publication number: 20090220418
    Abstract: The present invention pertains to a three compartment structured polymer nanoparticle (core-shell-corona) for multimodal imaging with specificity for cells or cellular components, thus enabling more advanced diagnostic approaches and targeted therapy on the cellular level without the use of additional biologically active materials.
    Type: Application
    Filed: February 19, 2007
    Publication date: September 3, 2009
    Applicant: TOPASS GMBH
    Inventors: Ulrich Pison, Bernd-Reiner Paulke, Silvia Pietschmann, Regis Cartier, Lutz Kaufner
  • Method For Separating Suspended Solid Materials From Aqueous Systems With Colloidal Flocculants
    Publication number: 20080314840
    Abstract: The invention relates to a method for separating suspended solid materials from aqueous systems, in which the latter is mixed with a flocculant made of polymer colloidal particles with cationic surface charge and subsequently the flocculated material is separated from the aqueous system.
    Type: Application
    Filed: March 3, 2006
    Publication date: December 25, 2008
    Applicants: LEIBNIZ-INSTITUT FUR POLYMERFORSCHUNG DRESDEN E.V., FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND
    Inventors: Werner Jaeger, Bernd-Reiner Paulke, Simona Schwarz, Mandy Mende