Patents by Inventor David L. Catone

David L. Catone 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).

  • Antimony pentoxide dispersions and method of making
    Patent number: 6040371
    Abstract: Process for preparing an aqueous dispersion of antimony pentoxide sol useful for flame retardancy consisting of the steps forming an aqueous dispersion of phosphated antimony pentoxide sol; mixing the aqueous dispersion with a water-soluble alkanol amine; and concentrating the dispersion to provide an aqueous dispersion containing at least 50 percent by weight of antimony pentoxide; and aqueous antimony pentoxide sol dispersions prepared thereby.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: March 21, 2000
    Assignee: Nyacol Products, Inc.
    Inventor: David L. Catone
  • Stabilized and flame-retardant PVC resins
    Patent number: 5863967
    Abstract: A halogen-containing vinyl resin such as polyvinyl chloride containing a thermal stabilizer and a flame retardant reagent comprising trivalent antimony deposited as a coating on the surface of a colloidal dispersion of antimony pentoxide particles.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: January 26, 1999
    Assignee: Nyacol Products, Inc.
    Inventors: David L. Catone, Mark A. Kinsman
  • Antimony pentoxide dispersions and method of making
    Patent number: 5800740
    Abstract: Process for preparing an aqueous dispersion of antimony pentoxide sol useful for flame retardancy consisting of the steps forming an aqueous dispersion of phosphated antimony pentoxide sol; mixing the aqueous dispersion with a water-soluble alkanol amine; and concentrating the dispersion to provide an aqueous dispersion containing at least 50 percent by weight of antimony pentoxide; and aqueous antimony pentoxide sol dispersions prepared thereby.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: September 1, 1998
    Assignee: Nyacol Products, Inc.
    Inventor: David L. Catone
  • Colloidal antimony pentoxide powders and method of making
    Patent number: 5182048
    Abstract: Disclosed are a novel class of colloidal antimony pentoxide powders having improved dispersibility in polar solvents; and novel processes for preparing same, which processes include the initial step of preparing a new intermediate consisting of an antimony pentoxide/phosphoric acid sol containing at least 35% by weight of antimony pentoxide based upon the total weight of the sol.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: January 26, 1993
    Assignee: Nyacol Products Inc.
    Inventors: Donald P. Kintz, David L. Catone
  • Kaolin clay-based pigment
    Patent number: 4578118
    Abstract: A substantially white, anhydrous, amorphous aluminosilicate pigment is obtained by calcining a combination of previously uncalcined kaolin clay and an alumina source. The calcination is carried out at a temperature of about 870.degree. C. to 1400.degree. C., preferably about 870.degree. C. to 1260.degree. C., for a suitable period of time, e.g., 0.1 to 3 hours. The pigments obtained by the foregoing method display enhanced brightness greater than the merely additive brightness which would be obtained by mixing alumina with a previously calcined kaolin clay and are otherwise well suited for use as paper-filling or coating pigments.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: March 25, 1986
    Assignee: Engelhard Corporation
    Inventors: Fred R. Huege, Richard A. Slepetys, David L. Catone