Patents by Inventor Wilfred Stübbe

Wilfred Stübbe 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).

  • Coating materials with high solids content and good levelling, multicoat paint systems produced therefrom and use thereof
    Patent number: 8790752
    Abstract: Disclosed is a coating composition based on aprotic solvents and comprising at least one hydroxyl-containing compound (A) and at least one compound (B) having isocyanate groups and having at least one silane group of the formula (I) —X—Si—R?xG3-x??(I) with G=identical or different hydrolyzable groups, R?=hydrogen, alkyl or cycloalkyl, X=organic radical, R?=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and characterized in that (i) the compound (B) containing isocyanate groups and silane groups comprises uretdione groups, and (ii) the compound (B) has been prepared from a linear aliphatic diisocyanate. The present invention additionally provides multistage coating methods using these coating compositions, and the use of the coating compositions as clearcoat, and application of the coating method for automotive refinish and/or for the coating of plastics substrates.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 29, 2014
    Assignee: BASF Coatings GmbH
    Inventors: Matthijs Groenewolt, Alexandra Steffens, Wilfred Stübbe, Wilma Nimz
  • COATING MATERIALS WITH HIGH SOLIDS CONTENT AND GOOD LEVELLING, MULTI-COAT PAINT SYSTEMS PRODUCED THEREFROM AND USE THEREOF
    Publication number: 20130136865
    Abstract: Disclosed is a coating composition based on aprotic solvents and comprising at least one hydroxyl-containing compound (A) and at least one compound (B) having isocyanate groups and having at least one silane group of the formula (I) —X—Si—R?xG3-x??(I) with G=identical or different hydrolyzable groups, R?=hydrogen, alkyl or cycloalkyl, X=organic radical, R?=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and characterized in that (i) the compound (B) containing isocyanate groups and silane groups comprises uretdione groups, and (ii) the compound (B) has been prepared from a linear aliphatic diisocyanate. The present invention additionally provides multistage coating methods using these coating compositions, and the use of the coating compositions as clearcoat, and application of the coating method for automotive refinish and/or for the coating of plastics substrates.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 30, 2013
    Applicant: BASF COATINGS GMBH
    Inventors: Matthijs Groenewolt, Alexandra Steffens, Wilfred Stübbe, Wilma Nimz