Patents by Inventor Alfred Westfechtel

Alfred Westfechtel 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).

  • Publication number: 20050089497
    Abstract: A cosmetic or pharmaceutical composition containing: (a) at least one 2-methylpropane-1,3-diol monoester; (b) optionally, a surfactant/emulsifier; (c) optionally, an oil component; and (d) optionally, water.
    Type: Application
    Filed: December 4, 2002
    Publication date: April 28, 2005
    Inventors: Daniela Prinz, Alfred Westfechtel, Werner Seipel
  • Publication number: 20050019353
    Abstract: A cosmetic or pharmaceutical composition containing: (a) at least one 2-methylpropane-1,3-diol diester; (b) optionally, a surfactant/emulsifier; (c) optionally, an oil component; and (d) optionally, water.
    Type: Application
    Filed: December 4, 2002
    Publication date: January 27, 2005
    Inventors: Daniela Prinz, Alfred Westfechtel
  • Publication number: 20040267073
    Abstract: Process for producing poly-&agr;-olefins are described wherein the processes comprise: (a) providing a primary alcohol; and (b) polymerizing the primary alcohol in the presence of an acidic alumino layer silicate to form a poly-&agr;-olefin. Water formed during the polymerization can be removed, optionally during the polymerization, and subsequent hydrogenation may be performed.
    Type: Application
    Filed: April 20, 2004
    Publication date: December 30, 2004
    Inventors: Lars Zander, Alfred Westfechtel, Elke Grundt, Markus Dierker
  • Publication number: 20040242909
    Abstract: Processes for preparing conjugated fatty acid products are described wherein (a) a composition which comprises a fatty acid ester having at least two unconjugated, carbon-carbon double bonds is provided; (b) the fatty acid ester is conjugated in the presence of a water-free base; (c) phosphoric acid is added to the conjugated fatty acid ester such that phosphate salts are precipitated; and (d) the precipitated phosphate salts are removed.
    Type: Application
    Filed: March 8, 2004
    Publication date: December 2, 2004
    Inventors: Lars Zander, Albert Strube, Andreas Heidbreder, Alfred Westfechtel, Wolfgang Giede
  • Publication number: 20040142009
    Abstract: Compounds of the formula (I): 1
    Type: Application
    Filed: November 21, 2003
    Publication date: July 22, 2004
    Inventors: Achim Ansmann, Sabine Both, Daniela Prinz, Nicole Schoeffler, Alfred Westfechtel
  • Publication number: 20040129179
    Abstract: The invention relates to the use of fatty (meth)acrylates for dispersing pigments. The fatty (meth)acrylates are obtained by reacting epoxidized fatty acid esters and/or epoxidized triglycerides with acrylic acid and/or methacrylic acid. The reaction is adjusted such that the %-EpO content of the fatty (meth)acrylates is below 0.6 and the following conditions are met for the epoxidized fatty acid esters and/or epoxidized triglycerides on which the fatty (meth)acrylates are based: a) the %-EpO content of the epoxidized fatty acid esters and/or epoxidized triglycerides used is above 6.4; b) less than 20 mole-% of the fatty acid components on which the epoxidized fatty acid esters and/or epoxidized triglycerides are based contain three or more C═C double bonds per fatty acid component; c) more than 60 mole-% of the fatty acid components on which the epoxidized fatty acid esters and/or epoxidized triglycerides are based contain two C═C double bonds per fatty acid component.
    Type: Application
    Filed: February 24, 2004
    Publication date: July 8, 2004
    Inventors: Horst Sulzbach, Alfred Westfechtel, Lars Zander, Rainer Hoefer, Matthias Fies
  • Patent number: 6730768
    Abstract: A method for preparing a polyol useful in the formation of an isocyanate casting resin or coating composition is presented involving the reaction of an essentially C18 fatty acid mixture with a monofunctional alcohol to form a fatty acid ester mixture, forming a epoxidized fatty acid ester mixture from the fatty acid ester mixture, and reacting the epoxidized mixture with an aliphatic alcohol to form a polyol. The polyol can be further reacted with an isocyanate to form a casting resin or coating composition. The fatty acid mixture contains at least 80 percent oleic acid. Polyols prepared by this method provide good color quality and improved color stability during storage when used in the production of isocyanate casting resins and coating compositions.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: May 4, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Andreas Heidbreder, Roland Gruetzmacher, Ulrich Nagorny, Alfred Westfechtel
  • Patent number: 6723867
    Abstract: Branched, substantially unsaturated fatty alcohol sulfates are produced by a process which comprises the steps of: (a) dimerizing unsaturated C16-22 fatty acid to form a dimer fraction and a monomer fraction comprised of branched, substantially unsaturated fatty acids and straight chain saturated fatty acids, (b) removing the monomer fraction from the dimerization step, (c) converting the branched, substantially unsaturated fatty acids from step (b) into the corresponding fatty acid methyl esters, (d) hydrogenating the branched, substantially unsaturated fatty acid methyl esters with the double bonds intact to form the corresponding branched, substantially unsaturated fatty alcohols and (e) sulfating and neutralizing the branched, substantially unsaturated fatty alcohols. The fatty alcohol sulfates thus produced exhibit improved performance properties and greater oxidative stability than standard unsaturated fatty alcohol sulfates.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 20, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Norbert Huebner, Hans-Christian Raths, Alfred Westfechtel
  • Patent number: 6664429
    Abstract: Branched, substantially unsaturated fatty alcohol polylglycol ethers are produced by a process which comprises the steps of: (a) dimerizing unsaturated C16-22 fatty acid to form a dimer fraction and a monomer fraction comprised of branched, substantially unsaturated fatty acids and straight chain saturated fatty acids, (b) removing the monomer fraction from the dimerization step, (c) converting the branched, substantially unsaturated fatty acids from step (b) into the corresponding fatty acid methyl esters, (d) hydrogenating the branched, substantially unsaturated fatty acid methyl esters with the double bonds intact to form the corresponding branched, substantially unsaturated fatty alcohols and (e) alkoxylating the branched, substantially unsaturated fatty alcohols. The fatty alcohol polylglycol ethers thus produced exhibit improved performance properties and greater oxidative stability than standard unsaturated fatty alcohol sulfates.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 16, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Norbert Huebner, Ansgar Behler, Alfred Westfechtel
  • Patent number: 6610811
    Abstract: Polyurethanes having improved tear resistance which are the reaction product of the following components: A) a polyol component containing dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols and B) an isocyanate component containing prepolymers obtained by reacting polyfunctional isocyanates with dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols; and processes for their manufacture.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: August 26, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Alfred Westfechtel, Roland Gruetzmacher, Rainer Hoefer
  • Patent number: 6610869
    Abstract: A process for making branched, substantially unsaturated ester oils involving: (a) providing an unsaturated C16-22 fatty acid; (b) dimerizing the unsaturated C16-22 fatty acid; (c) removing a monomer fraction accumulating during dimerization, the monomer fraction containing branched, substantially unsaturated fatty acids; (d) converting the branched, substantially unsaturated fatty acids contained in the monomer fraction into corresponding branched, substantially unsaturated fatty acid methyl esters having double bonds; (e) hydrogenating the branched, substantially unsaturated fatty acid methyl esters, with their double bonds intact, to form corresponding branched, substantially unsaturated fatty alcohols; and (f) esterifying the branched, substantially unsaturated fatty alcohols to form the branched, substantially unsaturated ester oils.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: August 26, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Norbert Huebner, Alfred Westfechtel
  • Publication number: 20030149214
    Abstract: Disclosed are polyurethanes formed from (A) a polyol component containing dimeric diol and/or trimeric triol and/or a polyether containing dimeric diol units and/or a polyester with OH-terminal groups formed from polcarboxylic acids, preferably dimeric fatty acids or trimeric fatty acids and diols; and (B) an isocyanate component containing prepolymers obtainable from the reaction between polyfunctional isocyanates and dimeric diol and/or trimeric triol and/or a polyether containing dimeric diol units and/or a polyester with OH-terminal groups formed from polycarboxylic acids, preferably dimeric fatty acids or trimeric fatty acids and diols; at least one of the components (A) and (B) contain dimeric or trimeric fatty acid or dimeric or trimeric fatty alcohol. The proposed polyurethanes have excellent resistance to tear propagation.
    Type: Application
    Filed: August 24, 1999
    Publication date: August 7, 2003
    Inventors: ALFRED WESTFECHTEL, ROLAND GRUETZMACHER, RAINER HOEFER
  • Publication number: 20030139317
    Abstract: The invention relates to a surfactant mixture containing fatty alcohol alkoxylates. The inventive mixture can be obtained by alkoxylating vegetable-based fatty alcohols and anionic surfactants and, optionally, dispersing agents and other co-surfactants. The invention also relates to the use of the inventive surfactant mixtures in washing agents, rinsing agents and cleaning agents.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Inventors: Ansgar Behler, Norbert Huebner, Alfred Westfechtel
  • Patent number: 6566563
    Abstract: A process for making OH-terminated compounds involving: (a) combining at least one CH2OH-terminated diol and a titanium-containing catalyst to form a reaction mixture; (b) heating the reaction mixture to a temperature of from 110 to 160° C. to form a heated reaction mixture; (c) continuously adding dimethyl carbonate to the heated reaction mixture; (d) continuously distilling all methanol released from the heated reaction mixture; (e) heating the reaction mixture to a temperature of from 190 to 240° C. to form an OH-terminated product; (f) removing unreleased methanol and dimethyl carbonate from the reaction mixture under a pressure of less than 100 mbar; and (g) deactivating the titanium-containing catalyst by adding from 0.8 to 2 equivalents, based on the catalyst, of a 1 to 20% by weight aqueous solution of phosphoric acid to the reaction mixture, at a temperature of from 80 to 120° C.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: May 20, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Alfred Westfechtel, Roland Gruetzmacher, Elke Grundt
  • Patent number: 6548717
    Abstract: A process for making branched, substantially unsaturated fatty alcohols involving: (a) providing a C16-22 fatty acid; (b) dimerizing the C16-22 fatty acid to form a monomer fraction containing branched, substantially unsaturated fatty acids; (c) removing the monomer fraction; (d) esterifying the branched, substantially unsaturated fatty acids contained in the monomer fraction into branched, substantially unsaturated fatty acid methyl esters; and (e) hydrogenating the branched, substantially unsaturated fatty acid methyl esters with their double bonds intact, to form the branched, substantially unsaturated fatty alcohols.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: April 15, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Alfred Westfechtel, Norbert Huebner, Lothar Friesenhagen, Gerrit Pelzer, Norbert Klein, Ansgar Behler, Thomas B. Downing, Steven A. Kennedy, C. William Blewett
  • Publication number: 20030040457
    Abstract: The invention relates to surfactant granulates containing fatty alcohol oxylates, obtained by alkoxylating plant based fatty alcohols and anionic surfactants and, optionally, other non-ionic surfactants and dispersing agents. The invention also relates to methods for the production of the inventive surfactant granulates and the use thereof in washing, rinsing and cleaning agents.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 27, 2003
    Inventors: Ansgar Behler, Norbert Huebner, Alfred Westfechtel
  • Publication number: 20020161161
    Abstract: Polyols which can be obtained by making epoxidized fatty acid esters of monofunctional C 1-8 alcohols react with aliphatic alcohols having a functionality ranging from 2-10. Fatty acid mixtures with mainly 18 carbon atoms represent the fatty acid component in the epoxidized fatty acid esters. The oleic acid content of the fatty acid mixtures is at least 80 wt %. The polyols are suitable for use in the production of isocyanate casting resins and coating compounds with enhanced colour stability.
    Type: Application
    Filed: May 11, 1999
    Publication date: October 31, 2002
    Inventors: ANDREAS HEIDBREDER, ROLAND GRUETZMACHER, ULRICH NAGORNY, ALFRED WESTFECHTEL
  • Publication number: 20020037932
    Abstract: Unsaturated palm oil fatty alcohols with an iodine number in the range from 65 to 85, which contain substantially unsaturated fatty alcohols and mixtures of saturated fatty alcohols of the formula (I):
    Type: Application
    Filed: June 12, 2001
    Publication date: March 28, 2002
    Inventors: Stephan Heck, Norbert Klein, Horst-Dieter Komp, Christiane Boehr, Norbert Huebner, Alfred Westfechtel
  • Publication number: 20020035159
    Abstract: Unsaturated coconut and/or palm nut fatty alcohols having an iodine number in the range from 65 to 85, which essentially comprise unsaturated fatty alcohols and mixtures of saturated fatty alcohols of the formula (I):
    Type: Application
    Filed: June 5, 2001
    Publication date: March 21, 2002
    Inventors: Stephan Heck, Norbert Klein, Horst-Dieter Komp, Christiane Boehr, Norbert Huebner, Alfred Westfechtel
  • Patent number: 6235702
    Abstract: A concentrated aqueous pearlescent composition containing: (a) from 1 to 99.9% by weight of an ester formed by reacting a hydroxy-functionalized carboxylic acid with a fatty alcohol containing from 6 to 22 carbon atoms; (b) from 0.1 to 90% by weight of an emulsifier selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an ampholytic surfactant, a zwitterionic surfactant, an esterquat, and mixtures thereof; and (c) up to 40% by weight of a polyol, all weights being based on the total weight of the composition.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: May 22, 2001
    Assignee: Henkel Kommaditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Stefan Podubrin, Alfred Westfechtel