Patents Assigned to Olin
  • Process and apparatus for the removal of oxyhalide species from aqueous solutions
    Patent number: 5167777
    Abstract: A process for electrochemically treating an aqueous solution containing inorganic oxyhalide species is disclosed in which the aqueous solution is fed into the catholyte compartment of an electrochemical reduction cell using a high surface area cathode separated from an anolyte compartment to electrochemically reduce substantially all of the oxyhalide species to halide ions and produce a purified water product.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: December 1, 1992
    Assignee: Olin Corporation
    Inventors: Jerry J. Kaczur, David W. Cawlfield, Kenneth E. Woodard
  • Identification, characterization, and method of production of a novel microbial lipase
    Patent number: 5168060
    Abstract: A novel lipase from a newly-discovered strain of Pseudomonas alcaligenes microorganism having (i) an optimum pH for activity of about 10.+-.0.5; (ii) an optimum temperature for activity of about 45.degree. to 55.degree. C.; (iii) an optimum pH for stability of about 7.0.+-.0.5; (iv) a molecular weight as measured by SDS-PAGE of about 3.0.times.10.sup.4 ; and (v) chemical stability for at least a 60 day mean half-life in the presence of a 10 percent solution of polyoxyethylene (23) lauryl ether in 25 millimolar aqueous calcium chloride. Also claimed is a biologically pure culture of the microorganism, and a method for the production of the lipase.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: December 1, 1992
    Assignee: Olin Corporation
    Inventor: Paul E. Holmes
  • Process for producing chlorine dioxide
    Patent number: 5165911
    Abstract: A process which comprises heating a reaction mixture comprised of an aqueous solution containing perchlorate ions, chlorate ions and hydrogen ions to produce chlorine dioxide and oxygen gas.The novel process of the present invention provides a commercially viable process for producing chlorine dioxide from mixtures of oxy-chlorine species in the absence of a reducing agent. The process can be operated without producing an acidic salt by-product while producing a chlorine dioxide product which is substantially free of chlorine. In addition, the process of the invention permits a reduction in the amount of acid fed to the chlorine dioxide generator.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: November 24, 1992
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, Sudhir K. Mendiratta
  • Anti-tarnish treatment of metal foil
    Patent number: 5164235
    Abstract: A process for imparting tarnish resistance to copper and copper alloy materials, particularly copper foil. The material is first treated with an acidic chromium-containing solution to deposit chromium ions on said foil. Thereafter the material is treated with a basic zinc ion containing solution to deposit zinc ions thereon. Finally, the material is rinsed in distilled water to remove any residual basic solution.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: November 17, 1992
    Assignee: Olin Corporation
    Inventor: Chung-Yao Chao
  • Algicidally enhanced calcium hypochlorite compositions
    Patent number: 5164109
    Abstract: Compositions consisting essentially of calcium hypochlorite and a water soluble zinc salt, the compositions containing from about 40 percent to about 99 percent by weight of calcium hypochlorite, provide controlled release of the components for continuous and effective sanitation and algae control to waters treated for use in swimming pools and spas.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: November 17, 1992
    Assignee: Olin Corporation
    Inventor: John A. Wojtowicz
  • Method of assembling a pyrotechnically initiated projectile
    Patent number: 5164533
    Abstract: A method of assembling a pyrotechnically initiated explosive projectile having coaxially arranged, a nose incendiary, a penetrator core, a high explosive, and an overall jacket. A seal ring is installed between the nose incendiary and the penetrator core to preclude relative movement between the core and the jacket during projectile assembly, acceleration and spin up from prematurely igniting the incendiary charge. The seal ring has a front collar portion which preferably has a diameter greater than that of the inside diameter of the jacket so that the collar scrapes the inside wall of the jacket during insertion to remove incendiary residual so that no incendiary can lodge between the jacket and the penetrator core.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: November 17, 1992
    Assignee: Olin Corporation
    Inventor: David K. Schluckebier
  • Long rod penetrator
    Patent number: 5162607
    Abstract: A reinforced sub-caliber kinetic energy penetrator comprises an elongated solid cylindrical hard metal body having a plurality of circumferential channels in said surface of said body. A plurality of circumferential reinforcing bands are swaged into the channels in the body to mechanically interlock the bands and said body together. The reinforcing bands stiffen the penetrator during impact with a target at oblique angles and enhance the target penetration and after armor effects.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: November 10, 1992
    Assignee: Olin Corporation
    Inventor: Edwin G. Steiner
  • Preparation of isocyanates using a silver salt promoted rearrangement
    Patent number: 5162575
    Abstract: The present invention relates to a process for producing isocyanates which comprises reacting an N-halogenated amide with an organic base in an essentially water-free modified Hofmann reaction using a soluble silver salt promoter in the presence of an organic solvent. Also disclosed is a process for producing a carbamate which comprises reacting an N-halogenated amide with an organic base in an essentially water-free modified Hofmann reaction using a soluble silver salt promoter in the presence of an alcohol solvent.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: November 10, 1992
    Assignee: Olin Corporation
    Inventor: Ming Shen
  • Process for the production of perchloric acid
    Patent number: 5160416
    Abstract: An electrolytic filter press membrane cell and a method of operating the cell to produce concentrated perchloric acid are disclosed. The cell employs concentrated hypochlorous acid as the anolyte and operates with a two-stage single oxidation process at high current density.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: November 3, 1992
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, Ronald L. Dotson, Budd L. Duncan, Sudhir K. Mendiratta, Kenneth E. Woodard, Jr.
  • Electrochemical chlorine dioxide generator
    Patent number: 5158658
    Abstract: An electrochemical process and electrolytic cell for manufacturing chlorine-free chlorine dioxide from dilute alkali metal chlorite solutions in a single step is disclosed. The electrolytic cell uses a porous flow-through anode and a cathode separated by a suitable separator.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 27, 1992
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, Jerry J. Kaczur
  • Electrostatic color printing system utilizing an image transfer belt
    Patent number: 5158846
    Abstract: An improved color printing method and the apparatus for employing the method are provided for continuously superimposing a plurality of separate color toner images onto a common conductive intermediate transfer belt from a plurality of developing drums across a liquid filled gap to form a single full color image. The separate colors have masters mounted to the developing drums and the superimposed full color image is contact transferred with the aid of heat and pressure from the conductive intermediate transfer belt to the final receiving paper substrate after all of the liquid has been removed from the superimposed full color image.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: October 27, 1992
    Assignee: Olin Corporation
    Inventor: David P. Bujese
  • Process for the manufacture of a three layer tape for tape automated bonding
    Patent number: 5156716
    Abstract: A method for the manufacture of an electronic circuit is provided. A non-conductive substrate is provided with an indexing means and personality windows by etching. An adhesive is deposited on one surface of the substrate to coat at least those regions to be laminated to a metallic foil. The foil is bonded to the non-conductive substrate and patterned into a plurality of circuit traces. Mechanical stamping of the substrate is not required providing a means to inexpensively manufacture small quantities of a desired circuit configuration.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: October 20, 1992
    Assignee: Olin Corporation
    Inventor: Arvind Parthasarathi
  • Cartridge assembly
    Patent number: 5155295
    Abstract: A cartridge assembly is provided, in one embodiment, comprising a combustible casing with an open forward end and an open breach end, enclosed at the breech end by a thin metal stub casing, a projectile assembly mounted in the forward end, an igniter assembly, a resilient obturator pop riveted to the casing, and annular sabot, and a plurality of flexible combustible priming tubes immersed in a propellant charge and extending the length of the casing. In another embodiment, the combustible casing comprises two separate casings joined together with fasteners, each casing having a set of flexible combustible priming tubes, an interface portion defined between the two where respective ends of combustible priming tubes abut. In both embodiments, the priming tubes combust rapidly producing complete ignition of the propellant charge and resultant stable projectile flight.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: October 13, 1992
    Assignee: Olin Corporation
    Inventor: Ralph F. Campoli
  • Aluminum alloy semiconductor packages
    Patent number: 5155299
    Abstract: The present invention relates to a packagae adapted to house an electronic device, such as a semiconductor integrated circuit. The package components are comprised of aluminum based alloy. At least a portion of the surfaces of the package components are anodized to enhance corrosion resistance and increase bond strength. The aluminum based packages are characterized by lighter weight than cooper based packages and better thermal conductivity than plastic based packages.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: October 13, 1992
    Assignee: Olin Corporation
    Inventors: Deepak Mahulikar, James M. Popplewell
  • Method for applying biocidal clothes dryer additive to laundered fabrics
    Patent number: 5154947
    Abstract: The present invention relates to a method for imparting biocidal protection to clothing or other fabrics which comprises contacting the clothing or other fabrics with a biocidally effective amount of pyrithione acid, or salt(s) thereof, or combinations thereof, in an automatic laundry dryer. Also disclosed is a transfer substrate containing a biocide consisting essentially of pyrithione acid, or salt(s) thereof, or combinations thereof, said biocide being present in or on said transfer substrate in an amount sufficient to impart antimicrobial activity to clothing or other fabric in an automatic clothes dryer.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: October 13, 1992
    Assignee: Olin Corporation
    Inventors: Charles E. Branch, Thomas E. Robitaille
  • Production of spray cast strip
    Patent number: 5154219
    Abstract: The spray casting of metal wherein an atomized spray of metal droplets is caused to be deposited upon a moving metallic foil substrate. The metallic foil substrate is maintained under tension as it passes in a position to receive the deposit such that thermal distortion is eliminated without causing tensile failure. In the second embodiment, the leading edge of the spray is positioned such that it does not contact the foil whereby the low mass density thereof does not contribute to deposit helping to eliminate bottom porosity.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: October 13, 1992
    Assignee: Olin Corporation
    Inventors: W. Gary Watson, Michael A. D'Onofrio, Carlos J. Rivera, Melillo Thomas J.
  • Recovery of dichlorine monoxide from hypochlorous acid solutions
    Patent number: 5152915
    Abstract: A process for producing dichlorine monoxide which includes: feeding an aqueous solution of hypochlorous acid containing at least 20% by weight of HOCl to a reaction vessel; maintaining the temperature of the aqueous solution of hypochlorous acid in the range of from about -10.degree. to about +40.degree. C.; passing an inert gas through the aqueous solution of hypochlorous acid to produce a gaseous mixture comprising dichlorine monoxide, chlorine and inert gas; an contacting the gaseous mixture with dry ice to provide a solid phase of dry ice and dichlorine monoxide.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: October 6, 1992
    Assignee: Olin Corporation
    Inventors: Richard W. Ralston, Jr., Budd L. Duncan, Ronald L. Dotson
  • Apparatus for producing a fast dissolving granular product
    Patent number: 5149398
    Abstract: A process and apparatus utilizing the process of the present invention are provided to produce a fast dissolving, thermally sensitive granular product. The process employs a fluidized spray dryer having a fluidized bed of granular particles into which recycled off-sized product is fed after being agglomerated to adjust particle size. The spray dryer optionally can employ a second nozzle positioned above the fluidized bed. The process can be employed in the production of calcium hypochlorite water sanitizing chemical wherein the chlorine is supplied from a hypochlorous acid reactor and lime hypochlorinator.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: September 22, 1992
    Assignee: Olin Corporation
    Inventors: John H. Shaffer, William L. Kurtz, John H. Hubbard
  • Color printing apparatus and process using first and second transfer surfaces
    Patent number: 5150161
    Abstract: Apparatus and a method of using the apparatus to transfer a liquid toned image from a first master surface to a final receiving surface via two intermediate transfer surfaces is disclosed. The liquid developed image is transferred three times, the initial transfer from the master surface being a non-contact transfer and the next two transfers being contact transfers. The second intermediate transfer surface is tacky or adhesive to remove all of the dried toner image from the first intermediate transfer surface.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: September 22, 1992
    Assignee: Olin Corporation
    Inventor: David P. Bujese
  • Feeding system for belt casting of molten metal
    Patent number: 5148855
    Abstract: A casting system for casting molten metal into a continuous solidified strip. A source of molten metal is fed onto a tundish which is interposed between the source of molten metal and a continuous substrate system preferably in the form of a continuous belt. The tundish directs the molten metal onto the moving belt in a direction toward the upstream end thereof so that it is moving in a direction opposed to the direction of the belt. This method of feeding the melt onto the belt results in less turbulance, a dampening of the molten metal and a spreading of the material across the width of the belt.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: September 22, 1992
    Assignee: Olin Corporation
    Inventor: Sankaranarayanan Ashok