Patents Assigned to Olin
  • Cell for electrolyzing aqueous solutions using a porous anode separator
    Patent number: 4120772
    Abstract: Electrolysis of alkali metal chloride solutions to produce chlorine and alkali metal hydroxides is accomplished in a cell comprising an anode compartment, a cathode compartment and an anode separator which divides the anode compartment from the cathode compartment. The anode separator is comprised of a porous plate of a valve metal having an electrochemically active coating on the face, and an electrochemically non-active coating on the back and a portion of the interior. The electrochemically non-active barrier layer may include resinous materials, for example, polyarylene compounds or polyolefin compounds.The anode separator provides improved gas separation properties, eliminates the need for a separate diaphragm or membrane and enables the cell to operate with reduced power requirements.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: October 17, 1978
    Assignee: Olin Corporation
    Inventor: Igor V. Kadija
  • Air flow limiting filter
    Patent number: 4119105
    Abstract: An improved smoke control device for smoking articles which contains a valve operative to close off the flow of smoke drawn through the smoking article depending upon the pressure drop or draw rate of each individual puff. Preferably, the valve comprises a resilient flap member responsive to the puff pressure drop for restricting or closing off smoke drawn through the smoking article and which will reopen after the pressure is relieved, thereby limiting each puff to a predetermined yield consistent with that obtainable in a normal puff.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: October 10, 1978
    Assignee: Olin Corporation
    Inventor: William F. Owens, Jr.
  • Process for producing sodium dichloroisocyanurate
    Patent number: 4118570
    Abstract: The present invention is an improvement in a process for the production of sodium dichloroisocyanurate (SDCC) wherein both an aqueous reaction mixture containing SDCC and the by-product NCl.sub.3 and a gaseous phase containing NCl.sub.3 vapor are formed, said improvement comprising passing an inert gas through said aqueous phase to remove said NCl.sub.3 vapor from said gaseous phase.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventor: James P. Brennan
  • Process for preparing dihydroxytoluene
    Patent number: 4118586
    Abstract: A process for preparing dihydroxytoluene by heating toluene diisocyanate distillation residue in the presence of an aqueous solution of phosphoric acid.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, John S. Babiec, Jr.
  • Method of renewing a porous diaphragm having reduced permeability to alkali metal chloride brines
    Patent number: 4118308
    Abstract: A method is provided for renewing the permeability of a porous diaphragm comprised of a synthetic fluorocarbon resin having ion exchange properties which comprises feeding an alkaline solution of an alkali metal chloride having a pH of from about 9 to about 12 to the anode compartment. A first portion of the alkaline brine passes through the porous diaphragm and a second portion contacts the porous diaphragm and is then removed from the anode compartment.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventor: Steven J. Specht
  • Fire control mechanism
    Patent number: 4117761
    Abstract: 1.
    Type: Grant
    Filed: March 31, 1966
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventors: James H. Johnson, Arnold L. Fowler, Julius E. Brooks, Harvey H. Friend
  • Granular calcium hypochlorite by spray graining
    Patent number: 4118524
    Abstract: Granular calcium hypochlorite particles having a core of calcium hypochlorite encapsulated in a plurality of layers of calcium hypochlorite are produced from an aqueous slurry of calcium hypochlorite by spraying a pumpable and sprayable slurry of calcium hypochlorite particles onto suspended particles of solid calcium hypochlorite above a moving bed of said particles. The solid particles coated with the slurry are heated to simultaneously evaporate and remove water from the slurry whereby said particles are coated with a layer of solid calcium hypochlorite.A portion of the moving bed of coated articles is removed from the spraying zone and further processed, if desired. In one embodiment the coated articles, with or without sizing, are dried to produce granular particles having the desired moisture content.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman
  • Granulator with beater bar and deflector
    Patent number: 4117984
    Abstract: A granulator is disclosed which has a housing with an entrance, an outlet and a granulation zone therewithin. A screen divides the granulation zone into inlet and outlet regions, a beater assembly passing repeatedly through the inlet region to force material within the inlet region through the screen and into the outlet region. A deflector applies low impact horizontal forces to the material to produce a desired distribution of the material at the outlet.A slidable screen connection can be provided to allow sliding removal of the screen without disassembly of the housing.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventors: Paul M. Waxelbaum, Fred A. Harris, William J. Brown
  • Copper base alloys possessing improved processability
    Patent number: 4116686
    Abstract: A copper base alloy is disclosed which exhibits improved resistance to crack propagation during hot processing as well as good mechanical properties. The alloy comprises from about 4.0 to about 11.0% tin, from about 0.01 to about 0.3% phosphorus, from about 1.0 to about 5.0% of a material selected from the group consisting of iron and a mixture of iron and cobalt, up to about 0.4% chromium, balance essentially copper. The alloy of the present invention possesses a substantially non-dendritic grain structure in the cast condition which contributes to said resistance to crack propagation.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: September 26, 1978
    Assignee: Olin Corporation
    Inventors: Brian Mravic, Stanley Shapiro, Derek E. Tyler, Abid Khan
  • Wet process phosphoric acid produced using gypsum-containing waste water
    Patent number: 4117091
    Abstract: Diluted sulfuric acid used in the production of wet process phosphoric acid is obtained by the admixing of gypsum-containing waste water with concentrated sulfuric acid and subsequently cooling in a liquid-to-liquid heat exchanger. By maintaining the concentration of the diluted acid at from about 65 to 80% H.sub.2 SO.sub.4, harmful formation of scale in the heat exchanger is prevented. The process permits the recovery of P.sub.2 O.sub.5 values from gypsum-containing waste waters and does not require expensive dilution tanks or flash coolers.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: September 26, 1978
    Assignee: Olin Corporation
    Inventor: Santad Kongpricha
  • Alkoxysilane double cluster compounds with silicone bridges and their preparation and use
    Patent number: 4116847
    Abstract: Novel alkoxysilane cluster compounds are described having the formula: ##STR1## wherein n is an integer from 0 to 300; R is hydrogen, alkyl, alkenyl, aryl, aralkyl or --OSi(OR').sub.3 ; each R' is independently selected from alkyl, alkenyl, aryl or aralkyl with the proviso that at least a majority of R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and R" and R'" are independently selected from hydrogen, alkyl, alkenyl, aryl, aralkyl, hydroalkyl, and halo or cyano substituted alkyl, alkenyl, aryl, aralkyl, and hydroalkyl. The preparation and use of these alkoxysilane cluster compounds also are described.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: September 26, 1978
    Assignee: Olin Corporation
    Inventor: Karl O. Knollmueller
  • Electrolytic cell having membrane enclosed anodes
    Patent number: 4115237
    Abstract: A membrane cell for the electrolysis of aqueous salt solutions is provided in which the foraminous metal anode is enclosed in the membrane. Spacing means are provided to separate the portions coated with an electrocatalytically active material from the membrane. The spacing means may be a nonconducting material or the coated surface of the anode may be faced away from the membrane to permit the anode structure to serve as the spacing means. To provide a low cell voltage and permit efficient hydrogen gas release from the caustic solution, the cathode is spaced apart from the membrane.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: September 19, 1978
    Assignee: Olin Corporation
    Inventors: Kenneth E. Woodard, Jr., Steven J. Specht
  • Granulator
    Patent number: 4114817
    Abstract: An improved granulator is disclosed having housing defining a granulation zone. A screen is attached to the housing within this zone and a contactor device moves repeatedly toward the screen to force material through the screen. A retractor device moves the screen and contactor apart when a predetermined force is reached therebetween. A shear pin sprocket drive connection can be employed to inactivate the contactor when a predetermined force is applied thereto.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 19, 1978
    Assignee: Olin Corporation
    Inventor: Fred A. Harris
  • Process for making peroxycarboxylic acid
    Patent number: 4115410
    Abstract: A method of making a peroxycarboxylic acid is described in which hydrogen peroxide is reacted with carboxylic acid in the presence of a catalyst acid to produce a reaction mixture containing peroxycarboxylic acid, unreacted carboxylic acid and the catalyst acid. This reaction mixture then is treated with ammonia to neutralize the catalyst acid, and the ammonium salt formed is removed in an aqueous phase. The mineral acid-free peroxycarboxylic acid reaction mixture may then advantageously be utilized as an oxidant. The peroxy-acids readily add oxygen to unsaturated compounds to produce epoxide compounds.
    Type: Grant
    Filed: September 15, 1977
    Date of Patent: September 19, 1978
    Assignee: Olin Corporation
    Inventor: Herbert L. Watts
  • Method of bonding using an improved epoxy composition containing chlorine containing polyols
    Patent number: 4113541
    Abstract: An improved method of bonding is disclosed using an epoxy resin composition which incorporates a select group of chlorine-containing polyols.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: September 12, 1978
    Assignee: Olin Corporation
    Inventors: Richard J. Turley, Alexandre Ozolins
  • Method for obtaining uniform porosity in printed inherently porous cigarette tipping papers
    Patent number: 4112154
    Abstract: A method for obtaining uniform porosity in printed inherently porous cigarette tipping papers from base papers of differing relative porosities, comprising measuring the porosity of the base paper and adjusting the viscosity of the ink used to print the base paper relative to the porosity of the base paper. The viscosity of the ink is progressively increased or decreased relative to decreases or increases respectively in the porosity of the base paper to arrive at a predetermined uniform final porosity in the printed paper.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: September 5, 1978
    Assignee: Olin Corporation
    Inventors: Stuart Wayne McCarty, Clarence Morris O'Shields
  • Vinyl chloride polymerization using selected amounts of air, oxygen or nitrogen
    Patent number: 4110527
    Abstract: An improved method for preparing polyvinyl chloride resins by suspension polymerization wherein the reaction vessel is placed under a limited, selected atmosphere of air, oxygen or nitrogen gas prior to charging starting vinyl chloride monomer material.
    Type: Grant
    Filed: April 30, 1973
    Date of Patent: August 29, 1978
    Assignee: Olin Corporation
    Inventors: Edwin T. Chesler, Donald Goodman, Milton Lapkin
  • Improved copper base alloys
    Patent number: 4110132
    Abstract: The instant disclosure teaches a process for obtaining an improved combination of strength and bend properties in copper base alloys having low stacking fault energy. The process is characterized by a critical combination of cold reduction and annealing following recrystallization. Improved copper base alloys are also disclosed.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: August 29, 1978
    Assignee: Olin Corporation
    Inventors: Prakash D. Parikh, Eugene Shapiro
  • Urethane coating composition and process
    Patent number: 4110317
    Abstract: Urethane coatings having improved weather and erosion resistant properties are provided by applying and curing in an atmosphere containing moisture a coating composition comprising(1) an isocyanate-terminated prepolymer comprised of the reaction product of(a) a polytetramethylene ether glycol having an average molecular weight between about 500 and about 700,(b) an oxyalkylated triol having an average molecular weight between about 400 and about 1000 in an amount between 0 and about 20 percent by weight based on the combined weight of the oxyalkylated triol and the polytetramethylene ether glycol, and(c) an organic diisocyanate and(2) an inert organic solvent.These coatings are particularly suitable for helicopter blades, radomes, leading edges of aircraft, and the like.
    Type: Grant
    Filed: January 10, 1974
    Date of Patent: August 29, 1978
    Assignee: Olin Corporation
    Inventor: James F. Moraveck
  • Separator-electrode unit for electrolytic cells
    Patent number: 4110191
    Abstract: An electrode-separator combination unit for use in an electrolytic cell having planar interleaved electrodes and a method of assembling such a unit. Electrodes are individually enclosed in a closed envelope of separator material to form individual electrolyte chambers. The separator can be perforated and electrical conductors, fluid supply conduits and fluid outlet conduits can be sealingly passed through the perforations to allow supply of raw materials to the enclosed electrodes and to allow removal of products therefrom.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: August 29, 1978
    Assignee: Olin Corporation
    Inventors: Steven J. Specht, John O. Adams