Patents by Inventor Riza N. Oezelli

Riza N. Oezelli 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).

  • Glass primer
    Patent number: 4735830
    Abstract: The invention relates to a new primer for pretreating glass in readiness for waterproof bonding to other substrates. The primer contains resins, functional silanes, solvents, and organosilazanes and, if desired, polyfunctional isocyanates and other additives. Compared with conventional primers, the resistance of the bond to hydrolysis is significantly improved.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: April 5, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Riza N. Oezelli, Hans-Josef Hoffman, Hans-Peter Kohlstadt
  • Glass primer
    Patent number: 4670057
    Abstract: The invention relates to a new primer for pretreating glass in readiness for waterproof bonding to other substrates. The primer contains resins, functional silanes, solvents, and organosilazanes and, if desired, polyfunctional isocyanates and other additives. Compared with conventional primers, the resistance of the bond to hydrolysis is significantly improved.
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: June 2, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Riza N. Oezelli, Hans-Josef Hoffmann, Hans-Peter Kohlstadt
  • Polyurethane lacquers containing nitroso-aromatics
    Patent number: 4569961
    Abstract: An improved polyurethane lacquer for coating an elastomer containing at least one polyfunctional aromatic nitroso compound as an adhesion improver and optionally, lacquer-nonreactive spacer particles.
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: February 11, 1986
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Riza N. Oezelli, Hartmut Lippert
  • Flocking adhesive for flexible substrates
    Patent number: 4535121
    Abstract: An adhesive for flocking elastomers, more especially apolar elastomers, such as EPDM. The adhesive contains an isocyanate-terminated polyurethane prepolymer and, as an adhesion promoter, a reaction product of an aromatic diisocyanate with a polyfunctional epoxide, particularly triglycidyl isocyanurate. The strength of adhesion and resistance of the bonds can be further increased by the addition of aromatic nitroso compounds, for example, 1,4-dinitrosobenzene.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: August 13, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Riza N. Oezelli, Hans-Josef Hoffmann, Hartmut Lippert
  • Process for preparing organosilazanes
    Patent number: 4255549
    Abstract: This invention is directed to an improved process for the preparation of condensable, film-forming organosilazanes by ammonolysis of organohalosilanes with liquid ammonia, the improvement comprising reacting a from about 5 to 15% by weight solution of organohalosilane in inert solvent with excess liquid ammonia under pressure at temperatures between 0.degree. and 50.degree. C.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: March 10, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Peter Christophliemk, Riza N. Oezelli, Guenther Tischbirek