Patents by Inventor Matthias Hof

Matthias Hof 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: 20110162425
    Abstract: Disclosed is the use of an alkoxylated fatty alcohol of formula (I), RO—(CH2—CHR?—O)n—(CH2CH2—O)m—H, wherein R stands for a saturated and/or unsaturated alkyl moiety containing 12 to 22 carbon atoms, R? is methyl, ethyl or propyl, m represents a number of 1 to 12, preferably 4 to 10, and n represents a number of 1 to 10, preferably 2 to 8, as an emulsifier in metalworking fluids which also contain at least water and one oil component, non-miscible with water, and, optionally, further ingredients, and where the fatty alcohol which forms the R moiety has a iodine value of 15 to 75 g I2/100 g.
    Type: Application
    Filed: August 27, 2009
    Publication date: July 7, 2011
    Inventors: Matthias Hof, Tanja Luedtke
  • Patent number: 7799544
    Abstract: A composition comprising alkyl esters, with a C1-C8 alkyl group, and partial glycerides, with a free glycerol content of, at most, 2%, by weight, based on the weight of the composition, derived in an enzymatically-catalyzed reaction from saturated or unsaturated, straight or branched C8-C22 fatty acids of vegetable oils, and useful, inter alia, in biofuels, such as biodiesel, and as an additive for improving the lubricating performance of fuel compositions.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: September 21, 2010
    Assignee: Cognis IP Management GmbH
    Inventors: Ulrich Schörken, Carolin Meyer, Matthias Hof, Nigel Cooban, Diana Stuhlmann
  • Publication number: 20100048931
    Abstract: Carboxylic acid esters which contain as the alcohol component trimethylolpropane and as the acid component a mixture of (i) linear saturated fatty acids having 8 to 18 C atoms and (ii) linear mono- or polyunsaturated fatty acids having 12 to 22 C atoms, wherein the molar ratio of (i):(ii) is in the range of from 3:1 to 1:3, show a good stability to oxidation and are suitable as base oils for hydraulic oils.
    Type: Application
    Filed: February 1, 2008
    Publication date: February 25, 2010
    Inventors: Alfred Westfechtel, Matthias Hof
  • Publication number: 20080153143
    Abstract: A composition comprising alkyl esters, with a C1-C8 alkyl group, and partial glycerides, with a free glycerol content of, at most, 2%, by weight, based on the weight of the composition, derived in an enzymatically-catalyzed reaction from saturated or unsaturated, straight or branched C8-C22 fatty acids of vegetable oils, and useful, inter alia, in biofuels, such as biodiesel, and as an additive for improving the lubricating performance of fuel compositions.
    Type: Application
    Filed: January 10, 2006
    Publication date: June 26, 2008
    Inventors: Ulrich Schorken, Carolin Meyer, Matthias Hof, Nigel Cooban, Diana Stuhlmann
  • Publication number: 20080033201
    Abstract: A dielectric insulating fluid composition for a transformer including a trimethylol propane ester corresponding to general formula I: where R1, R2, and R3 are the same or different and each represents a linear or branched alkyl group containing 5 to 11 carbon atoms, where an ester having a viscosity of <23 mm2/s at 40° C. and a fire point of >300° C. is provided.
    Type: Application
    Filed: May 18, 2005
    Publication date: February 7, 2008
    Inventors: Matthias Hof, Horst Baehr, Marc Moucha, Nigel Cooban, Andreas Willing
  • Patent number: 6946524
    Abstract: Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group consisting of monoethanolamine and alkylamines of the general formula R—NH2, wherein R represents an alkyl group having from 1 to 4 carbon atoms; are described. The polyester amides thus produced and their uses in stabilizing asphaltenes in crude oil and crude oil derivatives are also described.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 20, 2005
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Wolfgang Breuer, Paul Birnbrich, Claus-Peter Herold, Stephan Von Tapavicza, Didier Groffe, Matthias Hof
  • Publication number: 20040110898
    Abstract: A method for producing polymer capsules, pellets or droplets containing an active ingredient and having an ultra-thin coating is described, in which the active ingredient present in a dispersion with aqueous and organic phase is encapsulated in situ by means of heat-, plasma- or radiation-induced free-radical interfacial polymerization.
    Type: Application
    Filed: November 3, 2003
    Publication date: June 10, 2004
    Inventors: Michael Dreja, Wolfgang von Rybinski, Matthias Hof, Herbert Leonhard, Heinz Rehage
  • Publication number: 20040039125
    Abstract: Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group consisting of monoethanolamine and alkylamines of the general formula R—NH2, wherein R represents an alkyl group having from 1 to 4 carbon atoms; are described. The polyester amides thus produced and their uses in stabilizing asphaltenes in crude oil and crude oil derivatives are also described.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 26, 2004
    Inventors: Wolfgang Breuer, Paul Birnbrich, Claus-Peter Herold, Stephan Von Tapavicza, Didier Groffe, Matthias Hof