Patents by Inventor Wolfgang Hansch

Wolfgang Hansch 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).

  • Patent number: 11912950
    Abstract: The invention relates to the use of quaternized nitrogen compounds as a fuel and lubricant additive or kerosene additive, such as in particular as a detergent additive, for decreasing or preventing deposits in the injection systems of direct-injection diesel engines, in particular in common rail injection systems, for decreasing the fuel consumption of direct-injection diesel engines, in particular of diesel engines having common rail injection systems, and for minimizing the power loss in direct-injection diesel engines, in particular in diesel engines having common rail injection systems; the invention further relates to the use as an additive for petrol, in particular for operation of DISI engines.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: February 27, 2024
    Assignee: BASF SE
    Inventors: Markus Hansch, Harald Boehnke, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin
  • Patent number: 7629411
    Abstract: A process for preparing poly-C2-C4-alkylene glycol mono(meth)acrylic acid esters by reacting (meth)acrylic anhydride with a poly-C2-C4-alkylene glycol carrying at least one OH group in the presence of abase having a solubility in the poly-C2-C4-alkylene glycol of not more than 10 g/l at 90° C.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: December 8, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Becker, Joerg Pastre, Joachim Pakusch, Thomas Goetz, Arnold Burek, Wolfgang Hansch, Stefanie Spilger
  • Patent number: 7579421
    Abstract: Water-soluble or water-dispersible polymers comprising alkoxylated diallylamine derivatives, ethylenically unsaturated mono- or dicarboxylic acids, the anhydrides thereof or mixtures thereof and, if required, one or more further ethylenically unsaturated monomers C are prepared and are used as additives in mineral building materials, in detergents or in cosmetic formulations.
    Type: Grant
    Filed: June 19, 2004
    Date of Patent: August 25, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Becker, Lysander Chrisstoffels, Ludwig Voelkel, Thomas Goetz, Bernd Meyer-Roscher, Wolfgang Hansch, Stefanie Spilger
  • Publication number: 20090018240
    Abstract: The present invention relates to the use of water-soluble or water-dispersible polymers as additives in mineral building materials. The novel polymers are obtainable by polymerizing alkoxylated derivatives of 3-allyloxy-1,2-propanediol with ethylenically unsaturated mono- or dicarboxylic acids or the anhydrides, esters or mixtures thereof and, if appropriate, with one or more further ethylenically unsaturated monomers C.
    Type: Application
    Filed: February 16, 2005
    Publication date: January 15, 2009
    Applicant: BASF Akiengesellschaft
    Inventors: Stefan Becker, Ludwig Volkel, Thomas Gotz, Bernd Meyer-roscher, Markus Klumpe, Wolfgang Hansch, Arnold Burek, Stefanie Spilger
  • Publication number: 20080275166
    Abstract: The present invention relates to a process for the preparation of poly-C2-C4-alkylene glycol monoacrylic acid esters and monomethacrylic acid esters, and a process for the preparation of copolymers of such poly-C2-C4-alkylene glycol mono(meth)acrylic acid esters with acrylic acid or methacrylic acid and the use of the polymers as a plasticizing additive in cement-containing preparations. The preparation of the poly-C2-C4-alkylene glycol monoacrylic acid esters and monomethacrylic acid esters is effected by reacting acrylic anhydride or methacrylic anhydride ((meth)acrylic anhydride A below) with a poly-C2-C4-alkylene glycol compound P carrying at least one OH group in the presence of a base, the base being selected from basic compounds which have a solubility in the poly-C2-C4-alkylene glycol compound P of not more than 10 g/l at 90° C., and the molar ratio of (meth)acrylic anhydride A to compound P (molar ratio A:P) being in the range from 1:1 to 1.095:1, preferably in the range from 1.005:1 to 1.
    Type: Application
    Filed: September 2, 2005
    Publication date: November 6, 2008
    Applicant: BASF Akiengesellschaft
    Inventors: Stefan Becker, Jorg Pastre, Joachim Pakusch, Thomas Gotz, Arnold Burek, Wolfgang Hansch, Stefanie Spilger
  • Publication number: 20060149013
    Abstract: Water-soluble or water-dispersible polymers comprising alkoxylated diallylamine derivatives, ethylenically unsaturated mono- or dicarboxylic acids, the anhydrides thereof or mixtures thereof and, if required, one or more further ethylenically unsaturated monomers C are prepared and are used as additives in mineral building materials, in detergents or in cosmetic formulations.
    Type: Application
    Filed: June 19, 2004
    Publication date: July 6, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Stefan Becker, Lysander Chrisstoffels, Ludwig Volkel, Wolfgang Hansch, Stefanie Spilger