Patents Assigned to Hooker Chemicals & Plastics Corporation
  • Patent number: 4458306
    Abstract: An industrial plating system operative from a relatively high voltage, 60 Hz, three phase a-c source for providing a relatively low voltage pulsed d-c for delivering currents above around 1,000 amperes to plating load and including amplitudes of 3,000 to 5,000 amperes, and including a controlled rectifier operative with the a-c source to provide a rectified d-c output voltage of a preselected high amplitude, an inverter operative with the controlled rectifier and situated at substantially the same physical location for providing a pulsed a-c output of a preselected width and a-c frequency, the a-c frequency being from around 300 Hz to 3000 Hz, a high frequency rectifier operative with the inverter for providing plating loads with a rectified pulsed d-c having d-c amplitude and a preselected pulsed d-c frequency, the pulsed d-c frequency being greater than the preselected a-c frequency, the high frequency rectifier having a high frequency step down power transformer and a pair of high speed diodes operative in
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: July 3, 1984
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: James H. Galloway, Carmelo J. Amato
  • Patent number: 4246466
    Abstract: An apparatus for storing electrically generated heat includes a sealed container holding a bed of fusible heat storage medium, such as an alkali metal hydroxide composition, and having an expansion space above the bed of material to accommodate the medium in its liquid phase. A generally horizontal main electric heating unit is located in the bottom portion of the container for heating the fusible medium above its melting point. A first vertical electric heater is provided in the bed of material in thermal contact with the main heating unit and has its active heating portion extends upwardly from the main heating unit only to the height of the heat storage medium in solid phase. A second vertical electric heater is located in the container in thermal contact with the first vertical heater with the active heating portion of the second heater extending only from the height of the fusible medium in solid phase to the height of the medium in the expanded liquid phase.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: January 20, 1981
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Richard E. Rice, Barry M. Cohen, George W. Webb
  • Patent number: 4213407
    Abstract: A process for disposing of sewage sludge resulting from municipal type sewage plants, including the production of dry solid fuel which is used in the flash drying and in the deodorizing system. Supplemental fuels are not required. The system is capable of producing a sludge derived fuel (SDF).
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: July 22, 1980
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Kenneth N. Headley
  • Patent number: 4107229
    Abstract: Vinyl terminated, fully reacted urethane compositions comprise the reaction product of polyisocyanate, an hydroxyalkylated novolac and an ethylenically unsaturated alcohol. The vinyl terminated compositions are copolymerizable with ethylenically unsaturated monomers to produce thermoset polymers characterized by excellent physical properties and a high degree of resistance to acids and alkalies. The polymers are especially useful in the manufacture of molded articles and laminates and in the formulation of marine coatings.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: August 15, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Richard B. Tideswell, Jeffrey E. Selley
  • Patent number: 4107373
    Abstract: Cellulosic materials such as paper, wood, cotton, rayon and the like are rendered flame retardant by the intimate association therewith of an effective flame retardant amount of a reaction product of aqueous solution of sulfamic acid and an alkylene oxide e.g., ethylene oxide. Amounts of said reaction product of at least, and preferably in excess of, 0.5 percent by weight are generally effective to render the cellulosic material flame retardant. Preferably the reaction product is rendered neutral before or after application to the cellulosic material in order that the material be rendered noncorrosive and nonirritating in nature.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: August 15, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: George T. Miller
  • Patent number: 4107005
    Abstract: This disclosure is directed to fluorocarbon polymers, polymeric membranes, and electrochemical cells and processes. The polymers and membranes are produced by radiation techniques to provide improved products. For example, .alpha., .beta., .beta.-trifluorostyrene in an inert organic solvent is grafted onto an inert film, such as tetrafluoroethylene-hexafluoropropylene copolymer, by irradiation, i.e. with Co-60 gamma radiation at a dose of several Mrad. The grafted film is then sulfonated, preferably in a chlorosulfonic acid bath. The resulting film is useful as a membrane or diaphragm in various electrochemical cells such as chlor-alkali or fuel cells.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: August 15, 1978
    Assignees: Hooker Chemicals & Plastics Corporation, RAI Research Corporation
    Inventors: Vincent F. D'Agostino, Joseph Y. Lee, Edward H. Cook, Jr.
  • Patent number: 4107023
    Abstract: A filter press halate cell is disclosed, where a plurality of electrode units are arranged to form a cell. Each unit comprises a synthetic organic polymeric electrolytic cell frame housing an anode and a cathode in spaced relationship with each other. The cell frame contains electrolyte, initially a metal halide solution, and is arranged to allow electrical current to be conducted through the solution and between the anode and cathode, partially electrolyzing the solution to halogen, metal hydroxide and hydrogen. The halogen and metal hydroxide react at least partially in the cell to form hypohalite, halide and water. Means are taught for introducing feed through an inlet, and withdrawing electrolyte through an outlet. Clearance means and passageway means are taught for conducting reaction products upwardly between the anode and cathode and through the cell, as are means for removing hydrogen at the top of the cell.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: August 15, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Bernardus J. Mentz
  • Patent number: 4087480
    Abstract: There is provided a polymer composition based upon an oxyalkylated novolac intermixed with a vinyl halide polymer. The compositions of the invention provide improved processing characteristics with reduced melt viscosity and improved physical and mechanical properties. Mixtures of (1) polyvinyl halide, oxyalkylated novolac and impact modifier, such as an acrylic polymer or (2) mixtures of oxyalkylated novolac and polyvinyl halide modified to provide improved impact strength by graft polymerization show improved compatibility of the rubbery polymer phase resulting in optimum impact strength for the composition.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: May 2, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Akio Takahashi, Geoffrey H. Smith, Brian M. Rushton, Myron C. Annis
  • Patent number: 4083823
    Abstract: A no-bake foundry binder system comprises an alkali metal silicate binder and a hydroxy-terminated polyester.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: April 11, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: James R. Welcome, deceased, by Elizabeth M. Welcome, administratrix
  • Patent number: 4082712
    Abstract: An improved process for curing sulfhydryl-terminated thioether polymers substantially devoid of aliphatic unsaturation having a sulfhydryl functionality of 2 to 3 to obtain thioether elastomers is disclosed wherein the liquid thioether is reacted with a curing amount of tertiary butyl perbenzoate. Preferably the curing reaction is carried out at about ambient temperature in the presence of a copper, especially a divalent copper, promoter for the reaction. The improved curing process shortens the curing time and extends the effective working life of the curing reaction mixture. The cured products are of enhanced thermal stability and are useful as elastomeric sealants such as architectural sealants.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: April 4, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Bobby F. Dannels
  • Patent number: 4082606
    Abstract: An integral forced circulation evaporator apparatus which comprises an evaporating chamber, providing therein a liquid space and a vapor space, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said evaporating chamber being surmounted on said heating zone, in direct communication with the upper ends of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone, in direct communication with the lower ends of said heat exchange tubes; pump means horizontally disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber, a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in d
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: April 4, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: James E. Houston, Reynard W. Gingrich, Earl A. Schilt
  • Patent number: 4081317
    Abstract: The colored body content of the effluent from the alkali of a multi-stage cellulosic pulp bleach process is greatly reduced by extracting bleached cellulosic pulp with hypochlorite at a pH from about 6 to less than 9.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: March 28, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Ralph J. Gall, Frederick H. Thompson
  • Patent number: 4081413
    Abstract: Polyvinyl chloride compositions comprising per 100 parts by weight of polyvinyl chloride, about 0.7 to 14 parts of a polyvinyl chloride plasticizer, about 4 to 25 parts of an impact-modifier, about 1 to 3 parts of a processing aid, and about 1 to 3 parts of at least one lubricant. The compositions are preferably stabilized with a total of about 6 and 9 parts of stabilizer and stabilizer booster combination. The compositions are formable with finger pressure at temperatures above a minimum forming temperature for each specific composition. Said minimum forming temperature is preferably between about 120.degree. F and 160.degree. F.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: March 28, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Axel W. Tybus, Leonard A. Fabrizio
  • Patent number: 4079123
    Abstract: An improved process is provided for the production of chlorine dioxide and chlorine wherein an alkali metal chlorate and a strong acid selected from the group sulfuric acid, hydrochloric acid, phosphoric acid, and mixtures thereof are circulated and reacted in an integral forced circulation crystallizing reaction evaporator comprising in vertical disposition:a. an upper crystallizing evaporation chamber having a substantially vertically disposed cylindrical partition which divides at least the lower portion of the reaction evaporation chamber into a first and second substantially concentric cylindrical sections;B. a heat exchange chamber, andC. a lower pump chamber, having a pump means disposed therein to provide forced circulation of fluids within the reaction evaporator.An aqueous slurry of alkali metal salt of the strong acid is withdrawn from the lower portion of the pump chamber and chlorine dioxide, chlorine, and water vapor are withdrawn from the evaporation chamber.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: March 14, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Willard A. Fuller, Earl A. Schilt
  • Patent number: 4079034
    Abstract: An aromatic polyester of an aromatic dicarboxylic acid and halogenated bisphenol having a glass transition point above about 175.degree. C is employed as a non-blooming fire retardant additive for polymer compositions.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: March 14, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Anthony L. Lemper, Jerold C. Rosenfeld
  • Patent number: 4078984
    Abstract: A novel circuit of electrolytic cells, comprising novel monopolar cells with novel means of electrical cell to cell connections and electrical cell to jumper switch connections, resulting in a reduction of the necessary amount of highly conductive materials for these connections, and in a reduction of floor space required for the circuit, as well as in improved conditions for cell operation.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: March 14, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Wolfgang Strewe
  • Patent number: 4077850
    Abstract: A method for the purification of monochlorobenzene contaminated with partly chlorinated aliphatic compounds comprises (a) selectively photochlorinating the contaminated monochlorobenzene to convert the partly chlorinated aliphatic compounds to substantially fully chlorinated aliphatic compounds and (b) separating the monochlorobenzene from the more fully chlorinated aliphatic compounds by distillation.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: March 7, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Stephen Robota, James A. Whelan
  • Patent number: 4075448
    Abstract: An electrochemical cell circuit has vacuum interrupter cell by-pass switches provided in order to prevent the impurities in the environment, caused by leakage from the electrochemical cells, from interfering with the switch operation.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: February 21, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Jack H. Seedorf, Robert M. Hruda, Donald E. Abell
  • Patent number: 4075238
    Abstract: Polyhalobenzylic disulfooxonium compounds are produced by the reaction of aromatic methyl, halomethyl or hydroxymethyl substituents with sulfur trioxide. The disulfooxonium salts are readily converted to alcohols by hydrolysis to provide monomers for the production of fire resistant polymers and additives for polymers. Likewise, the disulfooxonium compounds of this invention present chemical intermediates for a wide range of useful products such as halogenated pesticides.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: February 21, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: Victor Mark, Leon R. Zengierski
  • Patent number: 4071582
    Abstract: An improved vinyl halide or vinyl halide copolymer containing up to 50 percent of a copolymer can be obtained by polymerizing in contact with an aliphatic hydrocarbon olefin homopolymer, copolymer or terpolymer in a process of bulk polymerizing comprising single stage or two-stage bulk polymerization wherein high speed agitation is used during the first stage and low speed agitation is used in the second stage. By polymerizing in the presence of the olefin polymer or copolymer, reduced particle size, reduced lump formation, and lower melt viscosity and improved impact strength can be obtained in the resin product. Small amounts of the olefin polymer or copolymer are effective in providing particle size control, reducing lump formation and eliminating scale build-up. Larger amounts of olefin polymer increase impact strength, reduce melt viscosity and provide excellent mold release properties in the final product.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: January 31, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: Akio Takahashi