Patents by Inventor David C. Montrose

David C. Montrose 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 composition
    Patent number: 7887938
    Abstract: A coating composition comprising an aqueous mixture containing acid-stable particles and one or more fluoroacids. The amount of the acid-stable particles in the coating composition is from 0.005% to 8% by weight on a dry weight basis. The acid-stable particles can be selected from aluminum-modified silica particles, nonaluminum-modified silica particles, and organic particles selected from anionically stabilized polymer dispersion particles. The invention is also directed to a coating on a metal substrate. The coating contains acid-stable particles attached to the metal substrate through a metal-oxide matrix. The metal-oxide matrix comprises a metal selected from titanium, zirconium, silicon, hafnium, boron, aluminum, germanium, or tin.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 15, 2011
    Assignee: Henkel AG & Co. KGaA
    Inventors: William E. Fristad, Jengi-Li Liang, David C. Montrose
  • Coating composition
    Patent number: 7332021
    Abstract: A coating composition comprising an aqueous mixture containing acid-stable particles and one or more fluoroacids. The amount of the acid-stable particles in the coating composition is from 0.005% to 8% by weight on a dry weight basis. The acid-stable particles can be selected from aluminum-modified silica particles, nonaluminum-modified silica particles, and organic particles selected from anionically stabilized polymer dispersion particles. The invention is also directed to a coating on a metal substrate. The coating contains acid-stable particles attached to the metal substrate through a metal-oxide matrix. The metal-oxide matrix comprises a metal selected from titanium, zirconium, silicon, hafnium, boron, aluminum, germanium, or tin.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: February 19, 2008
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: William E. Fristad, Jeng-Li Liang, David C. Montrose
  • Moderate temperature manganese phosphate conversion coating composition and process
    Patent number: 5728235
    Abstract: An aqueous solution of manganese phosphate and phosphoric acid, preferably with little or no content of any material conventionally recognized as an accelerator or of any divalent metal ions other than manganese and iron, forms a good quality paint undercoating phosphate conversion coating on metal substrates, particularly on steel and galvanized steel substrates, when contacted by spraying or immersion with the substrates at a temperature of 54.degree.-65.degree. C. for a time of 0.5-5 minutes.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 17, 1998
    Assignee: Henkel Corporation
    Inventors: Mervet S. Boulos, David C. Montrose, Michael Petschel
  • Moderate temperature manganese phosphate conversion coating composition and process
    Patent number: 5595611
    Abstract: An aqueous solution of manganese phosphate and phosphoric acid, preferably with little or no content of any material conventionally recognized as an accelerator or of any divalent metal ions other than manganese and iron, forms a good quality paint undercoating phosphate conversion coating on metal substrates, particularly on steel and galvanized steel substrates, when contacted by spraying or immersion with the substrates at a temperature of 54.degree.-65.degree. C. for a time of 2-5 minutes.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: January 21, 1997
    Assignee: Henkel Corporation
    Inventors: Mervet S. Boulos, David C. Montrose, Michael Petschel