Patents by Inventor Frank K. Chi

Frank K. Chi 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).

  • Patent number: 5834120
    Abstract: A fire protection material is provided for protecting electrical cables and components. The material comprises an endothermic-reactive insulating fibrous material including an inorganic endothermic filler which undergoes multiple endothermic reactions between the range 100.degree. C. and 750.degree. C.; inorganic fiber material; and an organic polymer binder. The weight ratio of endothermic filler to inorganic fiber is preferably in the range of 0.25 to 3.0. The fire protection material is in the form of semi-rigid or rigid board or may be moulded into sections.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: November 10, 1998
    Assignees: Unifrax Corporation, Darchem Engineering Ltd.
    Inventors: Keith Murray, Clifton Philpott, Frank K. Chi, Timothy S. Lintz, Ralph W. Paddock, Mark D. Stahlman
  • Patent number: 5053362
    Abstract: A moldable refractory composition containing from about 42 to about 83% by weight of a liquid vehicle, such as water; from about 13 to 50% by weight of ceramic fiber; from about 0.5 to 7% by weight of an inorganic binder derived from an inorganic colloidal dispersion having active hydroxyl groups capable of reacting with hydroxyl groups of the ceramic fiber; and from about 0.5 to 5% by weight of a high molecular weight organic resin which serves multiple functions including tackifier of the wet composition, cohesiveness of the wet composition, appropriate rheology of the wet composition to provide shelf life and a wide range of applications and in dry composition to provide green strength. Also described is the method of manufacture for the subject refractory moldable composition.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: October 1, 1991
    Assignee: The Carborundum Company
    Inventors: Frank K. Chi, Tanyol Halil
  • Patent number: 4742111
    Abstract: What is disclosed are aqueous compositions which are useful for coating solid substrates such as glass, plastic and metal. The aqueous compositions comprise colloidal silica, a phenolic resin, water and at least one hydrolyzable silane. An example of such a composition is colloidal silica, phenolic resin, water and CH.sub.3 SiO.sub.3/2 obtained from CH.sub.3 Si(OCH.sub.3).sub.3.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: May 3, 1988
    Assignee: Dow Corning Corporation
    Inventor: Frank K. Chi
  • Patent number: 4584340
    Abstract: What is disclosed are aqueous compositions which are useful for coating solid substrates such as glass, plastic and metal. The aqueous compositions comprise colloidal silica, a phenolic resin, water and at least one hydrolyzable silane. An example of such a composition is colloidal silica, phenolic resin, water and CH.sub.3 SiO.sub.3/2 obtained from CH.sub.3 Si(OCH.sub.3).sub.3.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: April 22, 1986
    Assignee: Dow Corning Corporation
    Inventor: Frank K. Chi
  • Patent number: 4460640
    Abstract: What is disclosed is a method of preparing fiber reinforced glass composites from high modulus fibers and organopolysiloxane resins. The composites are obtained by firing a partially cured, pressed, and post-cured prepreg to an elevated temperature in an inert atmosphere. A simple, low temperature laminating procedure is used in the composite preparation in place of the standard hot pressing technique.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: July 17, 1984
    Assignee: Dow Corning Corporation
    Inventors: Frank K. Chi, Gary L. Stark
  • Patent number: 4460639
    Abstract: What is disclosed is a method of preparing fiber reinforced glass composites from high modulus fibers and resin sols of organosilsesquioxanes, metal oxides, and metal alkoxides. The composites are obtained by firing a partially cured, pressed, and post-cured prepreg to an elevated temperature in an inert atmosphere. A simple, low temperature laminating procedure is used in the preparation of these composites in place of the standard hot pressing technique.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: July 17, 1984
    Assignee: Dow Corning Corporation
    Inventors: Frank K. Chi, Gary L. Stark
  • Patent number: 4311738
    Abstract: Non-ferrous metal substrates such as aluminum are coated with a composition consisting essentially of a dispersion of colloidal titania particles in a water/polar organic solvent medium of a partial condensate formed by hydrolyzing a silane such as methyltrimethoxysilane in the presence of the colloidal titania particles and in the presence of a sufficient amount of an acid such as acetic acid to provide a pH in the range of from 2 to 6. Optionally, the composition can contain up to 20 weight percent of colloidal silica and/or up to 5 weight percent of other types of monoorganosilsesquioxanes based upon the total weight of solids in the composition. The coated substrates are heated until the coating cures, preferably at 50.degree. C. to 150.degree. C., to form a transparent coating which renders the substrate more resistant to corrosion induced by acids or salts such as road salt or ocean spray.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: January 19, 1982
    Assignee: Dow Corning Corporation
    Inventor: Frank K. Chi
  • Patent number: 4275118
    Abstract: A pigment-free coating composition comprising an acidic dispersion of colloidal titania, colloidal silica and hydroxylated silsesquioxane in an alcohol-water medium. A coating of the composition cured on a plastic substrate such as polycarbonate results in a hard, abrasion-resistant protective coating. Such coatings transmit visible light, but absorb wavelengths of ultraviolet light which cause degradation of the substrate surface and resultant adhesion-loss of the protective coating upon weathering. A cured coating of these compositions deposited on metal substrates such as aluminum results in a hard, abrasion resistant coating which offers slightly more corrosion protection than such a composition without colloidal titania.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: June 23, 1981
    Assignee: Dow Corning Corporation
    Inventors: Ronald H. Baney, Frank K. Chi