Patents Examined by Lorenzo B. Hayes
  • Rust preventives
    Patent number: 4592783
    Abstract: Rust preventives are provided comprising divalent metal salts of the formula: ##STR1## wherein the R groups are independently selected from methyl, hydrogen, and decyl of the formula: ##STR2## wherein n=0 to 3; and wherein from two to three R groups are decyl, zero to two R groups are methyl, and zero to two R groups are hydrogen; and M is a divalent metal selected from Mg, Ca, Ba, and Zn. Useful intermediates for preparing the said rust preventives are also provided.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: June 3, 1986
    Assignee: Koppers Company, Inc.
    Inventors: Hans Dressler, Samuel N. Holter, Nancy Znidarsic
  • Die material and method of using same
    Patent number: 4591385
    Abstract: A die material particularly suitable for the making of castings or the like, comprises 50 to 80 parts of magnesium oxide, 10-40 parts of alumina, 2 to 6 parts of monohydrated ammonium phosphate, and 1 to 4 parts of dihydrated ammonium phosphate. The dry blend thus formed, when mixed with a chilled liquid binder containing a collodial silica sol of about 40 weight percent solids content in the ratio of one portion of the liquid binder and from 2 to 5 portions of the dry blend, forms a ceramic slurry which can be readily set in hot water within 4 to 10 minutes. The set ceramic casting is then dry heated to about 250.degree. F. for one to two hours. Molten metal is then applied on the casting for forming a metal jacket to use in dental prostheses.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: May 27, 1986
    Assignee: Aremco Products, Inc.
    Inventor: Jeannine A. Pearsall
  • Dental cement compositions
    Patent number: 4591384
    Abstract: A dental cement composition comprises a first ingredient containing as the main component a metal oxide and a second ingredient capable of reacting with the first ingredient to form a set mass, and further contains a tannic acid derivative that is sparingly soluble in water and a reducing agent that is soluble in water. The instant cement composition may contain an aluminum salt to improve the properties thereof.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: May 27, 1986
    Assignee: G-C Dental Industrial Corp.
    Inventors: Shoji Akahane, Kazuo Hirota, Kentaro Tomioka
  • Phenolic resin-polyisocyanate binder systems
    Patent number: 4590229
    Abstract: A binder composition containing a phenolic resin in an organic solvent, a polyisocyanate, wherein said organic solvent is substantially free from polar solvents, and methods of making and using the same.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: May 20, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: John J. Gardikes
  • Refractory composition
    Patent number: 4588442
    Abstract: A refractory containing refractory aggregate, clay binder, finely divided metallic powder and short length organic fibers.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: May 13, 1986
    Inventors: Colin Richmond, Michael E. Bennett
  • Process for producing a fire-resistant, light-weight construction board
    Patent number: 4586958
    Abstract: A fire-resistant and light-weight construction board is prepared by treating fly ash and/or paper sludge incineration ash to a swelling treatment with a mineral acid and shaping and hardening the resultant mixture.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: May 6, 1986
    Assignee: Fuji Fire-Proof Material Industry Co., Ltd.
    Inventors: Sadaji Matsuura, Yasuo Arai, Shigeki Aoki, Satoru Ando
  • Long-acting biocidal compositions and method therefor
    Patent number: 4585482
    Abstract: There is disclosed, in one aspect, a long-acting biocidal composition. This composition comprises a chlorine dioxide-liberating compound, such as sodium chlorite, and sufficient organic acid-generating compound, such as poly(lactic acid), to lower the pH of the composition to less than about 7. The organic acid-generating compound is present in a form whereby it is released gradually in the presence of water. Preferably the organic acid-generating compound is encapsulated within or by a film-forming polymer. In another aspect, there is disclosed a method of disinfecting a surface over a prolonged period of time. This method comprises applying to the surface a small but effective amount of the long-acting biocidal composition described above.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: April 29, 1986
    Assignee: Southern Research Institute
    Inventors: Thomas R. Tice, William E. Meyers, Richard M. Gilley, William M. Shannon
  • Aerosol corrosion inhibitors
    Patent number: 4584021
    Abstract: Corrosion inhibitor compositions comprising a mixture of nitroalkane containing 1-3 carbon atoms and an amine neutralized phosphate ester selected from the group consisting of 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate, tertiary C.sub.12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate, diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate and 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate. Such compositions are useful in inhibiting corrosion on the interior surfaces of tin-plated aerosol cans containing water-based aerosol formulations.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: April 22, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Philip L. Bartlett
  • Method of accelerating the breakdown of phenolic resin bonded cores
    Patent number: 4584328
    Abstract: A method of accelerating the breakdown of phenolic resin bonded cores by means of adding a basic salt of alkali metals in powder form to phenolic resin coated sand is disclosed. The basic salt is selected from the group consisting of alkali metal carbonates, bicarbonates and organic acid salts, and mixtures thereof, and is microcapsulated with plastic.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: April 22, 1986
    Inventor: Osamu Madono
  • Corrosion inhibiting composition
    Patent number: 4582538
    Abstract: A non-toxic corrosion-inhibiting coating composition is disclosed. The composition comprises at least 15% by weight wool grease having a moisture content of less than about 10% and at least 0.1 pounds and preferably from about 0.2 to about 0.6 pounds of barium metaborate per gallon of wool grease in the coating composition. Solvent may be used to adjust the viscosity of the composition.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: April 15, 1986
    Inventor: Colin T. Busch
  • Method for cleaning and coating objects
    Patent number: 4582733
    Abstract: A chemical composition particularly useful in a vapor generating apparatus which includes at least one organic compound with two or less carbon atoms and a selected coating compound therein. Upon submersion of an object to be cleaned or dried in a boiling solution of the organic compound the object is not only cleaned or dried, but is also coated with a material which improves its resistance to, for example, erosion, corrosion, friction, and the like.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: April 15, 1986
    Inventor: James W. McCord
  • Fluorine-containing monomer and process for producing the same
    Patent number: 4580981
    Abstract: Disclosed herein is a novel fluorine-containing monomer having one carbon-carbon double bond at one of the main molecular chain ends thereof and a molecular weight of 300 to 1600, obtained by bringing a fluorine-containing telomer having a molecular weight of 200 to 1500 and an OH group at one of the main molecular chain ends thereof into esterification with acryloyl chloride or methacryloyl chloride.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: April 8, 1986
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Nobuo Bannai, Hideyuki Yasumi, Shyoei Hirayama
  • Detergent bleach compositions
    Patent number: 4579678
    Abstract: Built detergent bleach compositions having improved low temperature bleach performance comprising a sequestrant builder; a peroxyacid selected from peracetic acid, monoperoxyphthalic acid and monopersulphate and water soluble salts thereof; and 0.005 to 0.1% by weight of Manganese (II) ions, in the substantial absence of hydrogen peroxide. The compositions can be used for washing and cleaning fabrics at temperatures below 40.degree. C.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: April 1, 1986
    Assignee: Lever Brothers Company
    Inventor: Adrian W. Walker
  • Dental cavity filling composite material
    Patent number: 4579880
    Abstract: A dental filling composite material is disclosed, which contains 10-99% by weight of phosphazene of the formula: ##STR1## in which at least one of R.sub.1 and R.sub.2 represent radicals having not less than 3 carbon atoms and being polymerizable.The filling composite material is low in polymerization shrinkage, thermal expansion coefficient and water absorption and may be quickly polymerized and cured to form a polymer of high compressive strength, flexural strength and hardness.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: April 1, 1986
    Assignee: Nihon University
    Inventors: Masayoshi Ohashi, Misaki Anzai
  • Composition for cleaning surface of substrate
    Patent number: 4578209
    Abstract: The present invention relates to a composition for cleaning a surface of a substrate, which contains as main components, (a) a halogenated hydrocarbon solvent, (b) a fluorine-containing alcohol and (c) an organic acid.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: March 25, 1986
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Iwao Hisamoto, Yukio Omure
  • Detergent bleach compositions
    Patent number: 4578206
    Abstract: Built detergent bleach compositions comprising a surface active agent, a peroxide compound/peracid precursor bleach system which forms peracids in solution, an alkali metal carbonate builder and trace levels of manganese (II) ions.The detergent bleach compositions deliver an improved bleach performance and can be used for washing/cleaning of fabrics at temperatures of below 40.degree. C.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: March 25, 1986
    Assignee: Lever Brothers Company
    Inventor: Adrian W. Walker
  • Process for manufacturing investment molds
    Patent number: 4576216
    Abstract: A process for making an investment mold wherein a paste composition is used as the separating layer between the investment mould of refractory material and the surface of the metal container in which the investment mould itself is located. The composition is constituted by an organic component which can be eliminated by thermal degradation at temperatures above 200.degree. C. and a refractory mineral component which is stable at the casting temperature of the alloy used in the casting process. In a preferred embodiment, the composition comprises vaseline, talc and kaolin.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: March 18, 1986
    Assignee: Newellpharma s.r.l.
    Inventor: Giorgino Perna
  • Rust preventive and process for the preparation thereof
    Patent number: 4576643
    Abstract: Rust preventive containing as binder agent a talloil pitch esterified by means of an alcohol and having an acid number between 0 and 15 mg KOH/g and a process for preparing a binder agent by esterifying a talloil pitch having an acid number between 17 and 50 mg KOH/g with one or more alcohols.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: March 18, 1986
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Kaj M. Skantz, Ari R. E. Christiansen
  • Single package zinc-rich coatings
    Patent number: 4571268
    Abstract: The invention relates to a single package zinc-filled coating particularly useful as applied to metal substrates. The zinc-rich coatings comprise mixtures of partially hydrolyzed ethyl silicate with large amounts of metal particles such as zinc dust in an organic solvent with an alkali metal nitrate as the catalyst. The coating compositions are substantially stable in the absence of moisture and therefore having a long shelf life and can be applied by conventional methods to obtain completely cured films under ambient conditions.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: February 18, 1986
    Assignee: The Sherwin Williams Company
    Inventors: Laura M. Frain, Paul A. Petkus
  • Hydroquinone catalyzed oxygen scavenger and methods of use thereof
    Patent number: 4569783
    Abstract: Compositions and methods for chemically scavenging oxygen from an aqueous medium are disclosed. Salicylaldehyde catalyzed by hydroquinone can be used as an oxygen scavenger in any aqueous medium, but is especially well adapted for use in boiler water systems.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: February 11, 1986
    Assignee: Betz Laboratories, Inc.
    Inventor: John A. Muccitelli