Patents Assigned to Celanese Coatings & Specialties Company
  • Transparent pigment dispersion process
    Patent number: 4017448
    Abstract: Transparent pigment dispersions, having long term storage capabilities and which produce coatings having a rich clean color and excellent transparency are produced by first dispersing the pigment in a resin solution under high speed, high shear, high impact conditions followed by completing the dispersion under conditions of maximized shear and minimized impact. Such pigment dispersions are useful in automotive paints, particularly "metallic" automotive paints.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: April 12, 1977
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Sol Panush
  • Acrylate or methacrylate modified alkyd resins and epoxy esters
    Patent number: 4014830
    Abstract: Air drying epoxy esters and alkyd resins are blended with polyacrylate esters of polyols. Coatings made from these blends have improved air-drying properties over the properties of coatings made from the unmodified resins, particularly in hardness and recoatability after overnight dry.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 29, 1977
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Robert D. Rumfield
  • Thermosetting concrete-containing epoxy
    Patent number: 3988279
    Abstract: Improved concretes and mortars are made from a hydraulic cement, e.g., Portland cement, and aggregate, plus a curable epoxy resin powder. After the concrete or mortar has cured by hydration, it is heated to a temperature high enough to cause the epoxy resin powder to melt, flow and cure.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: October 26, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Harold C. Klassen
  • Rinsing solutions for acid cleaned iron and steel surfaces
    Patent number: 3973998
    Abstract: Metal surfaces, after being cleaned of rust with an aqueous acid solution, are rinsed with an aqueous solution of a chelating agent and an ammonium or alkali metal silicate. Such rinsed surfaces remain rust free for extended periods of time. When coated with primer and top-coat paints, excellent durability and corrosion resistance are obtained.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: August 10, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventors: Vijay Jang Datta, John David White
  • Powder coatings having a variegated, speckled appearance
    Patent number: 3966669
    Abstract: Powder coating compositions which produce a variegated speckled appearance after being applied and baked are made from a dry blend of a finely divided fusible polymeric film forming coating composition and an oil soluble dye. Such coating compositions are useful as decorative and protective coatings for many industrial applications.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: June 29, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Norman Gilbert Wolfe
  • Mercaptan initiated polymerization process carried out in the presence of oxygen
    Patent number: 3960824
    Abstract: Low molecular weight polymers of ethylenically unsaturated monomers are prepared by a bulk polymerization process using organic mercaptans as the polymerization catalysts and carried out in the presence of oxygen. These low molecular weight polymers find utility as high solids casting and coating resins.
    Type: Grant
    Filed: July 9, 1971
    Date of Patent: June 1, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Darrell D. Hicks
  • Dispersion polymerization process using hydroxyalkyl acrylate as protective colloids
    Patent number: 3957711
    Abstract: Aqueous dispersions of synthetic polymers have been made by polymerizing ethylenically unsaturated monomers in water in the presence of a protective colloid which is a polymer of a hydroxyalkyl acrylate or methacrylate. Such aqueous dispersions are useful in paints, adhesives and textile applications.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: May 18, 1976
    Assignee: Celanese Coatings & Specialties Company
    Inventors: Thomas M. Powanda, Ralph F. Patella, Edward J. Kuzma