Patents by Inventor Renate Wuestefeld

Renate Wuestefeld 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 superabsorbers based on renewable raw materials
    Patent number: 9822197
    Abstract: A process for producing water-absorbing polymer particles, comprising the steps of thermal cracking of bionaphtha in the presence of steam, removing propene and at least some of the propane, gas phase oxidation to give acrylic acid and polymerization to give water-absorbing polymer particles.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: November 21, 2017
    Assignee: BASF SE
    Inventors: Klaus Dieter Hörner, Jürgen Schröder, Rüdiger Funk, Renate Wüstefeld
  • Absorbent article and process for making it
    Patent number: 9532906
    Abstract: The present invention is directed to a liquid-absorbing article comprising: a first sheet layer presenting an array of absorbent receiving pockets; masses of superabsorbent material, which masses are placed in said absorbent receiving pockets; a second sheet layer placed on top of the first layer; bonding beads placed between the respective pockets.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: January 3, 2017
    Assignees: BASF SE, BOSTIK INC.
    Inventors: Christophe Bauduin, Jean-Francois Chartrel, Thomas Daniel, Julien Liger, Renate Wuestefeld
  • Method for the restabilization of (meth)acrylic monomers
    Patent number: 9422221
    Abstract: A process for replacing the stabilization of (meth)acrylic monomers, wherein phenothiazine is removed from phenothiazine-containing (meth)acrylic monomers by adsorption on activated carbon, and then a moderately active polymerization inhibitor is optionally added.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: August 23, 2016
    Assignee: BASF SE
    Inventors: Norbert Herfert, Ulrich Hammon, Renate Wuestefeld
  • METHOD FOR PRODUCING SUPERABSORBERS BASED ON RENEWABLE RAW MATERIALS
    Publication number: 20150299347
    Abstract: A process for producing water-absorbing polymer particles, comprising the steps of thermal cracking of bionaphtha in the presence of steam, removing propene and at least some of the propane, gas phase oxidation to give acrylic acid and polymerization to give water-absorbing polymer particles.
    Type: Application
    Filed: November 18, 2013
    Publication date: October 22, 2015
    Applicant: BASF SE
    Inventors: Klaus Dieter Hörner, Jürgen Schröder, Rüdiger Funk, Renate Wüstefeld
  • ABSORBENT ARTICLE AND PROCESS FOR MAKING IT
    Publication number: 20140324005
    Abstract: The present invention is directed to a liquid-absorbing article comprising: a first sheet layer presenting an array of absorbent receiving pockets; masses of superabsorbent material, which masses are placed in said absorbent receiving pockets; a second sheet layer placed on top of the first layer; bonding beads placed between the respective pockets.
    Type: Application
    Filed: October 24, 2012
    Publication date: October 30, 2014
    Applicants: BASF SE, BOSTIK INC.
    Inventors: Christophe Bauduin, Jean-Francois Chartrel, Thomas Daniel, Julien Liger, Renate Wuestefeld
  • ABSORBENT ARTICLE AND PROCESS FOR MAKING IT
    Publication number: 20140276511
    Abstract: The present invention is directed to a liquid-absorbing article comprising: a first sheet layer presenting an array of absorbent receiving pockets; masses of superabsorbent material, which masses are placed in said absorbent receiving pockets; a second sheet layer placed on top of the first layer; bonding beads placed between the respective pockets.
    Type: Application
    Filed: October 24, 2012
    Publication date: September 18, 2014
    Applicants: BASF SE, BOSTIK INC.
    Inventors: Christophe Bauduin, Jean-Francois Chartrel, Thomas Daniel, Julien Liger, Renate Wuestefeld
  • METHOD FOR THE RESTABILIZATION OF (METH)ACRYLIC MONOMERS
    Publication number: 20120074354
    Abstract: A process for replacing the stabilization of (meth)acrylic monomers, wherein phenothiazine is removed from phenothiazine-containing (meth)acrylic monomers by adsorption on activated carbon, and then a moderately active polymerization inhibitor is optionally added.
    Type: Application
    Filed: May 31, 2010
    Publication date: March 29, 2012
    Applicant: BASF SE
    Inventors: Norbert Herfert, Ulrich Hammon, Renate Wuestefeld
  • Use of aqueous polymer dispersions as textile auxiliaries for easy-care finishing of textiles
    Patent number: 5667848
    Abstract: Aqueous polymer dispersions obtainable by polymerizing free-radically polymerizable unsaturated monomers in aqueous phase in the presence of a saccharide or of mixtures of saccharides by the method of free-radical aqueous emulsion polymerization are useful textile auxiliaries for the easy-care finishing of textile fabrics.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: September 16, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Renate Wuestefeld, Toni Simenc