Patents by Inventor Albrecht Schwerin

Albrecht Schwerin 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: 7459574
    Abstract: A process for reducing the odor of an oil. The oil being treated is first distilled by a carrier vapor or carrier gas distillation to form a distilled oil. The distilled oil is then contacted with a polymeric adsorbent; whereby the odor of the oil is reduced. The polymeric adsorbent is regenerated. The polymeric adsorbent can be a cross-linked polymer with an internal surface area of from 900 to 1500 m2/gram.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 2, 2008
    Assignee: Cognis IP Management GmbH
    Inventors: Christiane Richard-Elsner, Wilhelm Johannisbauer, Erich Reuter, Albrecht Schwerin
  • Patent number: 7449088
    Abstract: The present invention relates to a new process for obtaining fatty acids with improved color, odor and heat stability which is characterized in that: (a) in a first step the crude acids are fed to a rectification (“precut”) column in order to remove low boiling by-products being present in the starting material as a top fraction, and (b) in a second step the bottom fraction of the precut column is fed to a sidestream column in order to obtain the pure fatty acids as the side fraction, to remove low boiling by-products which have been formed in the course of the first distillation as a top fraction and to remove high boiling by-products, either being present from the starting material or formed during the first distillation, with the residue.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: November 11, 2008
    Assignee: Cognis Oleochemicals GmbH
    Inventors: Nataly Lausberg, Horst Josten, Georg Fieg, Thomas Kapala, Ralf Christoph, Andreas Suessenbach, Andreas Heidbreder, Ingomar Mrozek, Albrecht Schwerin
  • Patent number: 7365235
    Abstract: Processes for producing branched compounds are described wherein a carbonyl compound is condensed in the presence of a catalyst selected from the group consisting of acids and bases, to form an ?,?-unsaturated condensation product; and the ?,?-unsaturated condensation product is hydrogenated.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: April 29, 2008
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Sabine Both, Albrecht Schwerin, Erich Reuter, Georg Fieg, Juergen Falkowski
  • Publication number: 20070185345
    Abstract: The disclosed invention provides a process for the production of a benzoic acid ester by reaction of a benzoic acid component selected from benzoic acid or a benzoic acid ester with alcohol in the presence of a catalyst, characterized in that tin(II) oxide in combination with a phosphorus(I) compound is used as the catalyst. A phosphorus(I) acid or a salt thereof is preferably used as the phosphorus(I) compound. The resultant products can be used as constituents in cosmetic preparations.
    Type: Application
    Filed: April 30, 2004
    Publication date: August 9, 2007
    Inventors: Petra Biehl, Andreas Suessenbach, Albrecht Schwerin, Georg Fieg, Heinz-Josef Krueppel, Konstantinos Scholinakis
  • Publication number: 20060165737
    Abstract: A process for reducing the odor of an oil. The oil being treated is first distilled by a carrier vapor or carrier gas distillation to form a distilled oil. The distilled oil is then contacted with a polymeric adsorbent; whereby the odor of the oil is reduced. The polymeric adsorbent is regenerated. The polymeric adsorbent can be a cross-linked polymer with an internal surface area of from 900 to 1500 m2/gram.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 27, 2006
    Inventors: Christiane Richard-Elsner, Wilhelm Johannisbauer, Erich Reuter, Albrecht Schwerin
  • Publication number: 20060006056
    Abstract: Disclosed is a new process for obtaining fatty acids with improved color, odor and heat stability which is characterized in that (a) in a first step the crude acids are fed to a rectification (“precut”) column in order to remove low boiling by-products being present in the starting material as a top fraction, and (b) in a second step the bottom fraction of the precut column is fed to a sidestream column in order to obtain the pure fatty acids as the side fraction, to remove low boiling by-products which have been formed in the course of the first distillation as a top fraction and to remove high boiling by-products, either being present from the starting material or formed during the first distillation, with the residue.
    Type: Application
    Filed: March 31, 2005
    Publication date: January 12, 2006
    Inventors: Nataly Lausberg, Horst Josten, Georg Fieg, Thomas Kapala, Ralf Christoph, Andreas Suessenbach, Andreas Heidbreder, Ingomar Mrozek, Albrecht Schwerin
  • Patent number: 6897342
    Abstract: A process for making aldehydes involving: (a) providing a fatty alcohol; (b) providing an oxidic copper/zinc catalyst; and (c) continuously dehydrogenating the fatty alcohol, in the presence of the oxidic copper/zinc catalyst, at a temperature of from about 200 to 280° C. and a pressure of from about 10 mbar to 1 bar.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: May 24, 2005
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Albrecht Schwerin, Gerrit Pelzer, Lothar Friesenhagen, Bernhard Gutsche
  • Publication number: 20040002620
    Abstract: A process for making aldehydes involving: (a) providing a fatty alcohol; (b) providing an oxidic copper/zinc catalyst; and (c) continuously dehydrogenating the fatty alcohol, in the presence of the oxidic copper/zinc catalyst, at a temperature of from about 200 to 280° C. and a pressure of from about 10 mbar to 1 bar.
    Type: Application
    Filed: July 11, 2003
    Publication date: January 1, 2004
    Inventors: Albrecht Schwerin, Gerrit Pelzer, Lothar Friesenhagen, Bernhard Gutsche
  • Publication number: 20030181769
    Abstract: Processes for producing branched compounds are described wherein a carbonyl compound is condensed in the presence of a catalyst selected from the group consisting of acids and bases, to form an &agr;,&bgr;-unsaturated condensation product; and the &agr;,&bgr;-unsaturated condensation product is hydrogenated.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 25, 2003
    Inventors: Sabine Both, Albrecht Schwerin, Erich Reuter, Georg Fieg, Juergen Falkowski