Patents by Inventor Harald Kiesow

Harald Kiesow 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 the reactive coloration of leather
    Patent number: 8382857
    Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is halogen, C1-C4-alkyl or C1-C4-alkoxy, k is 0, 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 8, generally in the region of 8 to 11.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: February 26, 2013
    Assignee: BASF SE
    Inventors: Laszlo Somogyi, Andrea Zamponi, Harald Kiesow
  • Method for the reactive coloring of leather
    Patent number: 8372161
    Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: February 12, 2013
    Assignee: BASF SE
    Inventors: Laszlo Somogyi, Andrea Zamponi, Rolf Streicher, Harald Kiesow, Rainer Erhardt
  • Compounds and their use for producing leather and as dispersants
    Patent number: 8211550
    Abstract: A process for the production of leather using one or more reaction products of (a) triamines or higher amines with (b) at least one compound of the general formula I A1-R1??I where R1 is selected from hydrocarbon radicals having 10 to 5000 carbon atoms, straight-chain or branched, saturated or having from one to three C—C double bonds, and A1 from groups capable of reacting with amines.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: July 3, 2012
    Assignee: BASF SE
    Inventors: Stephan Hüffer, Sebastien Garnier, Oliver Reese, Günter Scherr, Harald Kiesow
  • COMPOUNDS AND THEIR USE FOR PRODUCING LEATHER AND AS DISPERSANTS
    Publication number: 20100227186
    Abstract: A process for the production of leather using one or more reaction products of (a) triamines or higher amines with (b) at least one compound of the general formula I A1-R1??I where R1 is selected from hydrocarbon radicals having 10 to 5000 carbon atoms, straight-chain or branched, saturated or having from one to three C—C double bonds, and A1 from groups capable of reacting with amines.
    Type: Application
    Filed: August 8, 2007
    Publication date: September 9, 2010
    Applicant: BASF SE
    Inventors: Stephan Hüffer, Sebastien Garnier, Oliver Reese, Günter Scherr, Harald Kiesow
  • Method for the Reactive Coloration of Leather
    Publication number: 20070234488
    Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is halogen, C1-C4-alkyl or C1-C4-alkoxy, k is 0, 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 8, generally in the region of 8 to 11.
    Type: Application
    Filed: June 7, 2005
    Publication date: October 11, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Laszio Somogyi, Andrea Zamponi, Harald Kiesow
  • Method for the reactive coloring of leather
    Publication number: 20070033746
    Abstract: The present invention relates to a process for dyeing leather with at least one dye F which has at least one alkaline-activable group of the formula A; where - - - - denotes the bond to the rest of the dye molecule; X is an electron-attracting radical, k is 1, 2 or 3, n is 0 or 1 and B is a CH?CH2 group or a CH2—CH2-Q group, where Q is an alkaline-detachable group, which comprises treating the leather with an aqueous float comprising at least one dye F at a pH of not less than 7.5. The present invention also relates to novel dyes which are particularly useful for reactive dyeing of leather.
    Type: Application
    Filed: October 28, 2004
    Publication date: February 15, 2007
    Applicant: BASF Aktiengessellschaft
    Inventors: Laszlo Somogyi, Andrea Zamponi, Rolf Streicher, Harald Kiesow, Rainer Erhardt