Patents Assigned to Olin
  • Pyrithione-containing bioactive polymers and their use in paint and wood preservative products
    Patent number: 4596864
    Abstract: Disclosed is a bioactive polymer comprising an effective biocidal amount of moieties derived from pyrithione and having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are individually selected from hydrogen and alkyl groups having from 1 to 4 carbon atoms; and PT represents the pyrithione moiety which is defined as ##STR2## wherein R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are individually selected from hydrogen and, a lower alkyl group having from 1 to about 8 carbon atoms, a lower alkoxy group having from 1 to about 8 carbon atoms, a nitro group and a halo group.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: June 24, 1986
    Assignee: Olin Corporation
    Inventors: Samuel I. Trotz, Theodore H. Fedynyshyn
  • Optical fiber cables having improved hermeticity
    Patent number: 4594766
    Abstract: The present invention relates to a process and apparatus for fabricating optical fiber cables having improved hermeticity. The optical fiber cables are formed by first reducing the water content of the buffer material surrounding each optical fiber. Thereafter, the dried optical fiber(s) are encapsulated into a metal or metal alloy tube. After fiber encapsulation, the tube may be sealed to prevent the ingress of moisture and/or water from the surrounding environment.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: June 17, 1986
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., Eugene Shapiro, Joseph Winter
  • Method of making semiconductor casing
    Patent number: 4594770
    Abstract: A casing for an electrical component comprises a metal lead frame having the electrical component connected thereto. A metal base member is bonded to one surface of the lead frame. A plastic housing member is bonded to a second surface of the lead frame. An adhesive seals and bonds the metal base member and plastic housing member to the lead frame so as to enclose the electrical component.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: June 17, 1986
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Process for using selected fatty acid adducts of a 1,2,4-triazole as sizing or waterproofing agents for cellulosic materials
    Patent number: 4595458
    Abstract: Disclosed is a process for treating a cellulosic material selected from the group consisting of cellulose, regenerated cellulose, and mixtures thereof, comprising the steps of:contacting the cellulosic material with a dispersion comprising an effective sizing or waterproofing amount of a fatty acid adduct of a 1,2,4-triazole having the formula: ##STR1## wherein R is an alkyl or alkenyl group having about 11 to about 21 carbon atoms and wherein R.sub.1 and R.sub.2 are individually selected from hydrogen or a lower alkyl group having 1 to 4 carbon atoms.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: June 17, 1986
    Assignee: Olin Corporation
    Inventors: Richard L. Frentzel, Michael L. Rosin
  • Multipurpose copper alloys with moderate conductivity and high strength
    Patent number: 4594221
    Abstract: A multipurpose copper base alloy having an improved combination of ultimate tensile strength and electrical conductivity. The alloy can be tailored for applications such as in connectors or leadframes by processing. The alloy may be processed to provide improved bead formability at some sacrifice in strength. The alloy in the stabilized condition shows surprising improvement in stress relaxation resistance. The alloy comprises a Cu-Ni-Si alloy to which about 0.05 to about 0.45% by weight magnesium is added.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: June 10, 1986
    Assignee: Olin Corporation
    Inventors: Ronald N. Caron, John F. Breedis
  • Copper base alloy for forging from a semi-solid slurry condition
    Patent number: 4594117
    Abstract: A process and apparatus for forming a thin-walled, elongated member having superior strength properties from an age hardenable copper base alloy consisting essentially of about 3% to about 20% nickel, about 5% to about 10% aluminum, and the balance essentially copper, is described herein. A slug or billet of a slurry cast, age hardenable copper base alloy is formed into a semi-solid slurry having about 5% to about 40% of the alloy in a liquid phase. The semi-solid slurry is then thixoforged to form the thin-walled, elongated member. Thereafter, the member is age hardened to provide a product having desired strength properties. The process and apparatus of the instant invention may be utilized to form cartridge casings.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: June 10, 1986
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Joseph Winter, Jonathan A. Dantzig
  • Cigarette paper with reduced CO on burning
    Patent number: 4590955
    Abstract: The present invention relates to smoking article wrappers having a non-ionic surfactant added to the wrapper. The non-ionic surfactant is added to the wrapper in an amount sufficient to reduce the amount of carbon monoxide produced upon burning of the wrapper.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: May 27, 1986
    Assignee: Olin Corporation
    Inventor: Ajit S. Dixit
  • Preparation of ionomers and polyurethane elastomers from carboxylic acid-containing monoether and polyether polyol addition products
    Patent number: 4590255
    Abstract: A process for making metal salt (ionomers) of carboxylic acid-containing mono- and polyether polyol addition products by (1) reacting maleic acid, fumaric acid, itaconic acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator to form a carboxylic acid group-containing addition product and (2) neutralizing said addition product with a sufficient amount of metal ions selected from the group consisting of metals from Groups 1a, 2a, 8, 1b and 2b of the Periodic Table to convert at least about 10% of the carboxylic acid groups to ionomeric salt groups. These ionomers may be then changed into useful polyurethane elastomers by reaction with organic polyisocyanates.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: May 20, 1986
    Assignee: Olin Corporation
    Inventors: James M. O'Connor, Richard L. Frentzel
  • Process for producing high purity solutions of alkali metal hydrosulfites
    Patent number: 4590058
    Abstract: High purity solutions of alkali metal hydrosulfites having low concentrations of alkali metal thiosulfates are produced in a process which comprises feeding an alcohol-free aqueous solution of an alkali metal hydrosulfite containing an alkali metal thiosulfate as an impurity to a crystallizing zone. Produced in the crystallizing zone is a slurry of alkali metal hydrosulfite crystals which is conveyed from the crystallizing zone to a separating zone. The separating zone, employing a non-gravitational separation means, recovers a slurry of alkali metal hydrosulfite crystals from a first mother liquor. A portion of the slurry of alkali metal hydrosulfite crystals is conveyed to a concentrating zone to recover a cake of alkali metal hydrosulfite crystals from a second mother liquor.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: May 20, 1986
    Assignee: Olin Corporation
    Inventor: David W. Cawlfield
  • Membrane cell jumper switch
    Patent number: 4589966
    Abstract: An electrolytic cell jumper switch system is disclosed which eliminates all damaging reverse currents without utilizing any additional rectifiers, power supply or auxiliary power or current sources by loading the electrical current flow through resistor modules around the cell to be disconnected, bypassing the current flow around the bus bar connection between the adjacent cells and the cell to be disconnected by closing a connecting switch and finally reopening the connecting switch to transfer the total current load in the switch back to the resistor modules.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: May 20, 1986
    Assignee: Olin Corporation
    Inventor: James M. Ford
  • Three-step plasma treatment of copper foils to enhance their laminate adhesion
    Patent number: 4588641
    Abstract: A three-step plasma treatment for improving the laminate adhesion of metallic and non-metallic substrates is described. The treatment comprises sequentially exposing the substrate to a first plasma of oxygen gas, a second plasma of a hydrocarbon monomer gas and a third plasma of oxygen gas. The process has particular utility in forming polymeric films on one or more surfaces of copper or copper alloy foils to be used in printed circuit applications.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: May 13, 1986
    Assignee: Olin Corporation
    Inventors: Reza Haque, Edward F. Smith, III
  • High current density cell
    Patent number: 4588483
    Abstract: A filter press membrane electrolytic cell having at least one cathode and one anode sandwiched about a permselective ion exchange membrane which employs a cathode having a first layer and a second layer cooperative with the membrane such that the voltage cofficient during operation at current densities greater than 4.0 kiloamperes per square meter is less than about 0.20 volts per kiloampere per square meter.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: May 13, 1986
    Assignee: Olin Corporation
    Inventors: Kenneth E. Woodard, Jr., David D. Justice, Garland E. Hilliard
  • Copper-tin alloys having improved wear properties
    Patent number: 4586967
    Abstract: A copper-tin alloy having improved wear performance and a process for forming the alloy is described herein. The alloy consists essentially of about 2% to about 11%, preferably about 3.5% to about 9% tin, about 0.03% to about 0.75%, preferably about 0.08% to about 0.5% phosphorous and the balance essentially copper. The processing for improving the wear performance includes a final heat treatment at a temperature in the range of about 400.degree. C. to about 650.degree. C., preferably about 500.degree. C. to about 600.degree. C. in an atmosphere having a dew point in the range of about -75.degree. C. to about +95.degree. C., preferably -57.degree. C. to +21.degree. C. and an oxygen level in the range of about 0.001 ppm to about 225 ppm.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: May 6, 1986
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, Frank N. Mandigo
  • Process for oxidizing halopyridines to halopyridine-N-oxides
    Patent number: 4585871
    Abstract: Described is a process for oxidizing 2-chloropyridine or 2-bromopyridine to the corresponding N-oxide with peracetic acid generated in situ from H.sub.2 O.sub.2 and acetic acid in the presence of a catalyst selected from the group consisting of sulfuric acid, alkali metal bisulfates, ammonium bisulfate, and mixtures thereof.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: April 29, 1986
    Assignee: Olin Corporation
    Inventor: Max M. Boudakian
  • Beta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same
    Patent number: 4585494
    Abstract: A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about 10.5% by weight aluminum, at least about 10% by weight nickel and the balance essentially copper. In accordance with an alternative embodiment the nickel can be replaced on a one for one basis by iron within certain limits. The alloys are processed by chill casting with a cooling rate throughout the section of the casting comprising at least about 10.degree. C./sec. The alloys as-cast or when reheated to a semi-solid exhibit a microstructure suitable for press forging.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: April 29, 1986
    Assignee: Olin Corporation
    Inventors: Sankaranarayanan Ashok, John F. Breedis
  • Hydrogenation of long chain olefinic oils with Raney catalyst
    Patent number: 4584139
    Abstract: An improved monolithic hydrogenation catalyst and processes for using same to hydrogenate animal and vegetable oils, said catalyst being comprised of a Raney metal alloy surface layer integral with and derived from a selected nickel alloy monolithic substrate mesh structure wherein said surface layer is predominantly derived from an adherent Beta structured crystalline precursor outer portion thereon. The catalyst is adaptable to both continuous and batch hydrogenation and shows enhanced activity, improved triene to diene selectivity and a low isomerization index. Hydrogenated oils show lower linolenic and stearic contents, lower trans-isomer percentages and lower melting points as compared to commercial products of equivalent iodine number.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: April 22, 1986
    Assignee: Olin Corporation
    Inventors: Thomas J. Gray, Norman G. Masse, Tai-Nang Huang, Michael J. Morgan
  • Adhesion primers for encapsulating epoxies
    Patent number: 4582556
    Abstract: A copper plastic laminate is provided having a high bond strength. The copper is selected from the group consisting of copper and copper alloys and has on its surface a uniform glassy-like, substantially pore-free coating of copper phosphate. A plastic encapsulating material containing a mold release agent is adhesively bonded to the copper.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: April 15, 1986
    Assignee: Olin Corporation
    Inventors: Sheldon H. Butt, Edward F. Smith, III, F. Dennis Gyurina
  • Process for producing meta-aminobenzotrifluoride
    Patent number: 4582935
    Abstract: Disclosing a process for making meta-aminobenzotrifluoride comprising:reacting meta-nitrobenzotrichloride with hydrogen fluoride in the presence of ammonium ions under a pressure of at least about 35 psig and at a temperature of at least about 55.degree. C. for sufficient time in the presence of water and a metal catalyst to form meta-aminobenzotrifluoride, wherein the amount of water added is at least one mole percent of the meta-nitrobenzotrichloride.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: April 15, 1986
    Assignee: Olin Corporation
    Inventor: Max M. Boudakian
  • Optical fiber cable repair and joining technique and kit for performing the same
    Patent number: 4580874
    Abstract: A method for repairing or joining together optical fiber cables is described herein that uses a ferrule to connect two optical fiber cable lengths. Each cable length comprises a metal tube containing one or more optical fibers and a filler material. The ferrule is placed in overlapping relationship with each tube and a lap joint is effected between the ferrule and each tube. An outer sleeve having a length substantially equal to a gap between the tubes is formed about the ferrule and is bonded to each tube. The outer sleeve preferably has an outer periphery substantially corresponding to the outer periphery of the tubes so that the joined cable has a substantially continuous surface. A kit for performing the method is also described.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: April 8, 1986
    Assignee: Olin Corporation
    Inventors: Joseph Winter, Martin H. Dempsey
  • Swimming pool chemical tablet
    Patent number: D283649
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: April 29, 1986
    Assignee: Olin Corporation
    Inventor: John M. Casberg