Patents Assigned to Olin
  • Cooperative rolling process and apparatus
    Patent number: 4244203
    Abstract: An apparatus and process for rolling metal strip to provide increased percentage reductions in the thickness of the strip per pass and increased total reduction between anneals. A 4-high rolling mill is modified so that it is back-up roll driven such that the back-up rolls have different peripheral speeds in the same ratio as the desired strip reduction. The strip travels through the mill in a serpentine arrangement to provide three reductions per pass. Forward and back tension are applied to the strip during rolling.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: January 13, 1981
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Joseph Winter
  • Membrane cell chlor-alkali process having improved overall efficiency
    Patent number: 4242184
    Abstract: A process for the preparation of an alkali metal hydroxide and halogen from an alkali metal halide in a plurality of electrolytic cells, wherein each electrolytic cell is physically arranged in series with respect to the other electrolytic cells, the series having a first electrolytic cell and a last electrolytic cell, so that for a selected cell in the series, after the first electrolytic cell, catholyte alkali metal hydroxide from the catholyte chamber of a previous electrolytic cell is conveyed to the catholyte chamber of the selected electrolytic cell. The concentration of the alkali metal hydroxide is progressively increased toward a desired final concentration in the last cell through the series of electrolytic cells. Each electrolytic cell has an anolyte chamber containing an anode and a catholyte chamber containing a cathode, separated by a permselective membrane.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventor: James M. Ford
  • Copper base alloy containing manganese and iron
    Patent number: 4242131
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 0.1 to less than 1% iron; about 1.1 to 8% manganese; and the balance essentially copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Copper base alloy containing manganese
    Patent number: 4242133
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 1.1 to 8% manganese; and the balance copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Copper base alloy containing manganese and nickle
    Patent number: 4242132
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 0.1 to less than 1.0% nickel; about 1.1 to 8% manganese; and the balance essentially copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Raney alloy coated cathode for chlor-alkali cells
    Patent number: 4240895
    Abstract: An improved cathode with a conductive metal core and a Raney-type catalytic surface predominantly derived from an adherent NiAl.sub.3 crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum added to give a precursor alloy having the formula Ni.sub.x Mo.sub.1-x Al.sub.3 where x is within the range of from about 5 to about 15 weight percent. Also disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Mo core or substrate having about 5-20 weight percentage of Mo and coating it with aluminum then heat treating to form a Ni-Mo-Al alloy with mostly NaAl.sub.3 structure and then leaching out the Al to produce a Raney surface.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: December 23, 1980
    Assignee: Olin Corporation
    Inventor: Thomas J. Gray
  • Driver assembly for small-diameter fasteners
    Patent number: 4239143
    Abstract: A driver assembly for reliably driving relatively small-diameter washered and nonwashered fasteners from an indirect-acting powder-actuated tool comprises an adapter, carried on the muzzle end of the tool barrel and having a bore wherein is operatively disposed an adapter piston adapted for cooperation with the tool piston. The adapter bore comprises two portions: a first portion, of a size to slidingly admit the shank of the tool piston, and a second portion, having a diameter of a size to guide and support the fastener during driving thereof. The adapter piston includes a head slidingly fitted in the first adapter bore portion and a shank so fitted in the second bore portion. The adapter piston is preferably spaced apart from the tool piston when both are in the driving position, whereby tool recoil is reduced.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: December 16, 1980
    Assignee: Olin Corporation
    Inventor: Peter W. Johnson
  • Process for the production of concentrated cyanuric acid slurries
    Patent number: 4237285
    Abstract: Concentrated slurries of cyanuric acid are produced in a process which comprises feeding urea to a hot solvent. In the hot solvent, the urea is pyrolyzed to produce a reaction mixture of cyanuric acid particles in the solvent. Agitation of the reaction mixture forms a suspension of cyanuric acid particles. At cyanuric acid concentrations of from about 20 to about 50 percent by weight, the cyanuric acid particles are settled from the suspension to produce a concentrated slurry phase and a supernatent solvent phase. The concentrated slurry phase is then separated from the solvent phase.The process produces concentrated cyanuric acid slurries which minimize the complexity and cost of solvent recovery, reduces energy requirements for heating the reaction mixture and recovering the solvent, and maximizes heat transfer efficiency during the pyrolysis reaction.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: December 2, 1980
    Assignee: Olin Corporation
    Inventors: John A. Bartoszek, Louis C. Hirdler
  • Process for textile bleaching with dibasic magnesium hypochlorite
    Patent number: 4236891
    Abstract: Textile fabrics are bleached in a process which comprises contacting the textiles with an aqueous solution of dibasic magnesium hypoclorite. The bleaching solution is maintained at a pH of from about 3 to about 8 by the addition of an acid or acid salt.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: December 2, 1980
    Assignee: Olin Corporation
    Inventors: Michael Scardera, Garrett B. Schifilliti
  • Ingot shape control by dynamic head in electromagnetic casting
    Patent number: 4236570
    Abstract: A method and apparatus is disclosed for electromagnetic casting of metal and alloy ingots of desired shape having portions of small radius of curvature. An open-ended container or hot-top having spaced internal baffles is placed before the electromagnetic induction station of the casting apparatus to provide desired metal flow patterns. Also disclosed is a downspout having nozzle portions which provide preferred directionality to supplied molten metal.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: December 2, 1980
    Assignee: Olin Corporation
    Inventors: Gerhart K. Gaule, John C. Yarwood, Derek E. Tyler
  • Bis(dimethylbenzyl)diphenylamine scorch inhibitor for polyurethane foams containing halogenated phosphate esters
    Patent number: 4235975
    Abstract: Polyurethane foam formulations containing halogenated phosphate ester additives are inhibited against scorching through the use of an effective amount of 4,4'-bis(.alpha., .alpha.-dimethylbenyl)diphenylamine.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: November 25, 1980
    Assignee: Olin Corporation
    Inventors: Frank J. Preston, Steven T. Nakos, Louis Rua, Jr.
  • Heat exchange panel
    Patent number: 4235287
    Abstract: A heat exchange panel having a desired system of internal tubular passageways is described, wherein the internal passageways include opposed headers connected by connecting portions of said passageways extending therebetween. The headers are designed to provide uniform fluid distribution and to enable efficient drainage of fluid from the unit, including any entrapped gases.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: November 25, 1980
    Assignee: Olin Corporation
    Inventors: Charles A. Kleine, Verne L. Middleton
  • Silicone oil compositions containing silicate cluster compounds
    Patent number: 4234441
    Abstract: Novel compositions are described comprising silicone oils and silicate cluster compounds. The addition of the cluster compounds serves to enhance the silicone oils and accommodate the solubilizing of various additive materials that otherwise are not compatible with the silicones.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: November 18, 1980
    Assignee: Olin Corporation
    Inventors: Robert N. Scott, David F. Gavin, Frank J. Milnes
  • Electrolytic process for potassium hydroxide
    Patent number: 4233122
    Abstract: Improved current efficiency is obtained in an electrolytic membrane cell for the production of potassium hydroxide by employing in combination:(a) a membrane comprised of a carboxylic acid substituted polymer prepared by reacting a fluorinated olefin with a comonomer having a functional group selected from the group consisting of carboxylic acid and a functional group which can be converted to carboxylic acid;(b) a potassium chloride brine feed through the anolyte chamber of the cell having a concentration in the range from about 250 to about 300 grams of potassium chloride per liter;(c) a cell operating temperature in the range from about 90.degree. to about 100.degree. C.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: Richard W. Lynch, Garland E. Hilliard, Ronald L. Dotson
  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4233068
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of tin or silicon, or mixtures of each of these elements, along with magnesium or magnesium plus aluminum to a copper-zinc base to attain the stress relaxation performance. The composition and processing of this alloy system maintains at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., John M. Vitek, Eugene Shapiro
  • Liquid polymer hydration
    Patent number: 4233265
    Abstract: Described is a mixing apparatus and its use in the hydration of liquid polymers. The apparatus includes two packed mixing columns, each having two reducing couplings attached thereto to form an inlet and an outlet to each column. The outlet of the first mixing column is connected to the inlet of the second mixing column via means of a reducing passageway. The apparatus also has sources of supply for liquid polymer and water connected to the inlet of the first mixing column through metering means and injection check means. The apparatus provides controlled mixing velocity during the hydration with non-shearing agitation and without a chemical buildup.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventor: Kenneth E. Gasper
  • Modified polyurethane liquid polymer compositions
    Patent number: 4233205
    Abstract: A novel, heat curable, liquid polymer composition is disclosed which comprises a modified urethane oligomer containing ethylenic unsaturation, a free radical catalyst, a polyfunctional mercaptan, and a filler.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: James M. O'Connor, Willie J. Sessions
  • Continuous process for the production of monoalkali metal cyanurates
    Patent number: 4233444
    Abstract: A continuous process is disclosed for the production of monoalkali metal cyanurates. In the process, cyanuric acid and an aqueous solution of the alkali metal hydroxide are continuously reacted in a first reactor to produce a first slurry comprised of cyanuric acid and a monoalkali metal cyanurate. This first slurry is conveyed to a second reactor to further react the cyanuric acid with the alkali metal hydroxide to produce a second slurry comprised of the monalkali metal cyanurate.The novel process produces slurries of monoalkali metal cyanurate which are consistent both with respect to chemical composition and solids content while reducing equipment and operating costs.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: David F. Doonan, Kurt H. Moller
  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4233069
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of magnesium plus aluminum to a copper-zinc base to attain the stress relaxation performance. Processing of this alloy system should be performed so as to maintain at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., John M. Vitek, Eugene Shapiro
  • Drill tool or the like
    Patent number: D257511
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventor: Hajo Zahn