Patents by Inventor Joachim Kochta

Joachim Kochta 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).

  • Drying composition comprising an odoriferous substance
    Patent number: 5951970
    Abstract: The invention relates to a composition which donates an odoriferous substance and absorbs moisture, and can preferably be employed in wardrobes and similar containers, and in small rooms, for keeping the atmosphere dry.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: September 14, 1999
    Assignee: Haarmann & Reimer GmbH
    Inventors: Wolfgang Wrede, Joachim Kochta
  • Polyisocyanate addition compounds containing cyanamide groups and their use
    Patent number: 5554711
    Abstract: The invention relates to reaction products prepared from(a) organic polyisocyanates,(b) 0.005 to 0.9 equivalents of a C.sub.6-24 alcohol per equivalent of NCO or latent NCO present in component (a),(c) 0.1 to 0.995 mol of cyanamide per equivalent of NCO or latent NCO present in component (a), and(d) ammonia or a volatile amine as neutralizing agent for the cyanamide groups of component (c),with the proviso that the reaction products are free from polyester and polyether groups and from halogen atoms.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: September 10, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harro Tr aubel, Thomas M unzmay, Tillmann Hassel, Wilhelm Kr ummel, Hans-Albert Ehlert, Joachim Kochta
  • Softening and waterproofing retanning agents
    Patent number: 5472741
    Abstract: Copolymers containing incorporated radicals of long-chain alcohols and neutralized carboxyl groups are suitable as retanning agents for leather. They result in an excellent combination of water repellency, softness and grain tightness.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: December 5, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Sackmann, Bruno Bomer, Joachim Kochta, Henricus Slaats
  • Use of ester urethanes for retanning
    Patent number: 5417723
    Abstract: The present invention relates to a process for retanning chrome-tanned leather comprising applying to leather a reaction product of(a) at least one glycerol monoester of a saturated C.sub.12-18 monocarboxylic acid,(b) at least one diisocyanate selected from the group consisting of toluene diisocyanate, hexamethylene diisocyanate, and isophorone diisocyanate, and(c) dimethylolpropionic acid,wherein(i) the components (a), (b) and (c) are so selected that the molar ratio of the isocyanate groups of component (b) to the sum of the hydroxyl groups of components (a) plus (c) is about 0.5 to about 1.05 and(ii) the molar ratio of compound (c) to compound (a) is about 0.7 to about 1.5 and wherein(iii) the carboxyl groups originating from compound (c) are at least partly neutralized.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: May 23, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harro Traubel, Wilhelm Krummel, Joachim Kochta
  • Process for producing chrome leather
    Patent number: 5340365
    Abstract: In the production of chrome leather, a pretreatment of delimed and bated pelts with condensation products not having a tanning action leads to substrates which, without any problems, can be mechanically dewatered and shaved or split and shaved.The properties of the leathers produced therefrom by chrome tanning do not differ from those of leathers which have been conventionally chrome-tanned and shaved.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 23, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Wehling, Franz Schade, Joachim Kochta, Herbert Burkhardt, Peter Schindlmayr