Patents by Inventor Achim Gast

Achim Gast 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: 9016211
    Abstract: Disclosed are wheelsets having a cured coating produced from the application and curing of a composition comprising a component A comprising a1) 18 to 30% by weight of a polyether polyol with a hydroxy number of 300 to 500 mg KOH/g, a2) 38 to 60% by weight of castor oil, a3) 0.6 to 2.0% by weight of at least one di- or polyamine, a4) 5.6 to 9.0% by weight of trizinc bis(orthophosphate), a5) 2.2 to 3.5% by weight of zinc oxide and/or zinc phosphate, a6) 0.05 to 0.4% by weight of a catalyst which catalyzes urethane formation, where the percentage by weight data are based on the total mass of the coating composition, and a component B comprising one or more di- and/or polyisocyanates in an amount corresponding to a molar ratio of 0.6:1 to 1.2:1 of the isocyanate groups to the hydroxy groups of the constituents a1) and a2).
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: April 28, 2015
    Assignee: BASF Coatings GmbH
    Inventors: Jens Klauer, Egon Warntjes, Klaus Buck, Eugen Hoegele, Achim Gast
  • Publication number: 20140290527
    Abstract: Disclosed are wheelsets having a cured coating produced from the application and curing of a composition comprising a component A comprising a1) 18 to 30% by weight of a polyether polyol with a hydroxy number of 300 to 500 mg KOH/g, a2) 38 to 60% by weight of castor oil, a3) 0.6 to 2.0% by weight of at least one di- or polyamine, a4) 5.6 to 9.0% by weight of trizinc bis(orthophosphate), a5) 2.2 to 3.5% by weight of zinc oxide and/or zinc phosphate, a6) 0.05 to 0.4% by weight of a catalyst which catalyzes urethane formation, where the percentage by weight data are based on the total mass of the coating composition, and a component B comprising one or more di- and/or polyisocyanates in an amount corresponding to a molar ratio of 0.6:1 to 1.2:1 of the isocyanate groups to the hydroxy groups of the constituents a1) and a2).
    Type: Application
    Filed: May 10, 2012
    Publication date: October 2, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Jens Klauer, Egon Warntjes, Klaus Buck, Eugen Hoegele, Achim Gast
  • Patent number: 5840372
    Abstract: The invention relates to a process for the production of two-coat finishes, in which a pigmented aqueous basecoat is applied, the basecoat obtained is coated over with a clearcoat, and basecoat and clearcoat are baked together. The process according to the invention is distinguished in that the aqueous basecoat contains a polyacrylate resin which has been prepared using furfuryl acrylate and/or furfuryl methacrylate.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: November 24, 1998
    Assignee: BASF Lacke+Farben, AG
    Inventors: Heinz Peter Rink, Bernhard Lettmann, Achim Gast
  • Patent number: 5786033
    Abstract: To form multi-layer paint films which have a good finished appearance on objects which are to be painted, using an aqueous base coat composition. An aqueous base coat composition which contains aqueous polyurethane resin and rheology control agent, the electrical conductivity measured in an aqueous solution of 3% by weight concentration of which is 700-900 mS/cm, is painted and then the paint film is formed, a transparent top coat is painted on the base coat paint film obtained in this way, and the base coat and the top coat are baked at the same time.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: July 28, 1998
    Assignee: BASF Lacke + Farben, AG
    Inventors: Achim Gast, Kazuki Shiomi, Hitoshi Taniguchi
  • Patent number: 5503939
    Abstract: The invention relates to a process for the production of two-coat finishes, in which a pigmented aqueous basecoat is applied, the basecoat obtained is coated over with a clearcoat, and basecoat and clearcoat are baked together. The process according to the invention is distinguished in that the aqueous basecoat contains an emulsion polymer which has been prepared in the presence of a reaction product (A), the reaction product (A) being obtained by reacting(i) a butadiene homo- or copolymer,(ii) at least one fatty acid of a drying oil or at least one drying oil or a mixture of at least one fatty acid of a drying oil and at least one drying oil, and(iii) maleic anhydridein a mass ratio of (i):(ii):(iii)=1.0:0.1 to 0.6:0.1 to 0.6 and, after adding a basic aqueous solution, converting the reaction product to an aqueous dispersion.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: April 2, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Heinz P. Rink, Susanne Piontek, Bernhard Lettmann, Stefan Wieditz, Birgit Peitz, Achim Gast