Patents by Inventor Heinz Portz

Heinz Portz 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).

  • Phosphate conversion coatings for composite metals
    Patent number: 4775427
    Abstract: A process for forming a protective coating for protecting a substrate metal from corrosion and improving the adhesion of subsequently applied coatings, comprising treating the metal with an aqueous acidic solution containing molybdate in an amount of from 0.01 to 10.0 g/l, chromium in an amount of from 0.01 to 10.0 g/l, fluoride in an amount of from 0.01 to 10.0 g/l, phosphate in an amount of from 0.01 to 10.0 g/l, zinc in an amount of from 0.005 to 1.0 g/l, and acetate in an amount of from 0.01 to 10.0 g/l. The process successfully treats a variety of metals, and provides high-quality coated composites.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: October 4, 1988
    Assignee: Gerhard Collardin GmbH
    Inventors: Heinz Portz, Horst-Peter Geimer
  • Method for activating metal surfaces prior to zinc phosphation
    Patent number: 4707193
    Abstract: A method for activating a metal surface during a phosphating process by treating the surface with an activating solution containing titanium ions, phosphate ions, and borate ions, after initial cleaning and rinsing but before phosphation.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: November 17, 1987
    Assignee: Gerhard Collardin Gesellschaft mit beschraenkter Haftung
    Inventors: Heinz Portz, Reinhard Opitz
  • Phosphate conversion coating accelerators
    Patent number: 4680064
    Abstract: Phosphate conversion coating accelerators consisting essentially of amidosulfonic acid, N-substitution products and salts thereof, sulfonamides, 1,2,3-oxathiazin-4(3H)-one salts or 6-alkyl derivatives thereof, and ortho-aniline sulfonic acid or its derivatives aklyl-substituted on the ring and salts thereof, and mixtures of the foregoing, and a process for their use.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: July 14, 1987
    Assignee: Gerhard Collardin GmbH
    Inventors: Heinz Portz, Othmar V. Ettingshausen
  • After-passivation of phosphated metal surfaces
    Patent number: 4600447
    Abstract: A composition for the after-passivation of phosphated metal surfaces and a method for its use, the composition containing at least one water soluble salt of tetravalent titanium or divalent manganese, cobalt, nickel or copper.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: July 15, 1986
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Reinhard Opitz, Kurt Hosemann, Heinz Portz