Patents Assigned to Olin
  • Patent number: 4374986
    Abstract: Described are selected siloxane adducts of tris(2-hydroxyethyl)isocyanurate having the formula: ##STR1## wherein each R and R' is individually selected from lower alkyl groups having 1 to 4 carbon atoms and lower alkoxy groups having 1 to 4 carbon atoms; and the sum of m, n, and p is from 0 to about 20; with the proviso that each R' is a lower alkoxy group when the sum of m, n, and p is 0. These siloxane adducts are also described as good functional fluids, particularly as lubricants and lubricant additives.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: February 22, 1983
    Assignee: Olin Corporation
    Inventors: Jacqueline M. Renner, Robert N. Scott, David F. Gavin
  • Patent number: 4374712
    Abstract: An improved cathode with a conductive metal core and a Raney-type catalytic surface predominately derived from an adherent ternary aluminide intermetallic crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion contains molybdenum and titanium to give a precursor alloy having the formula Ni.sub.x Mo.sub.y Ti.sub.z Al.sub.3 where x is within the range of from about 75 to about 94 weight percent, y is within the range of from about 5 to about 20 weight percent and z is within the range of from about 1 to about 5 weight percent of the Ni-Mo-Ti portion of the alloy. Also disclosed is a method of producing a low overvoltage cathode which includes the steps of taking a Ni-Mo-Ti core or substrate having about 5-20 weight percentage of Mo and about 1-5 weight percent Ti, coating it with aluminum then heat treating to form a Ni-Mo-Ti-Al tertiary alloy with mostly NiAl.sub.3 (ordered orthorhombic) crystal structure.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: February 22, 1983
    Assignee: Olin Corporation
    Inventor: Thomas J. Gray
  • Patent number: 4374934
    Abstract: A select, low density semi-flexible foam polymer composition is prepared from a very select reaction mixture which is characterized by a foaming agent which consists essentially of water and is substantially free of fluorinated hydrocarbon compounds, and a relatively low reaction mixture NCO/OH index of from about 20 to about 70. The foam polymer composition is particularly useful in packaging fragile or shock-sensitive objects.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: February 22, 1983
    Assignee: Olin Corporation
    Inventor: Robert J. Raynor
  • Patent number: 4374985
    Abstract: Hydrated alkali metal dichloroisocyanurate particles are prepared in a process which comprises, in a first step, spraying droplets of an aqueous slurry of alkali metal dichloroisocyanurate into an evaporation zone fed with a moving stream of heated gas to evaporate water from the droplets and form dry porous solid spherical particles of hydrated sodium dichloroisocyanurate. In a second step, the dry particles are fluidized in a cooling gas until cooled to a temperature below about 50.degree. C. The resulting porous hydrated particles have a uniform distribution of hydration, are dust-free, and quickly dissolve in water.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: February 22, 1983
    Assignee: Olin Corporation
    Inventors: David F. Doonan, Noel N. Coe
  • Patent number: 4373571
    Abstract: An apparatus and process is provided for electromagnetically forming a material into a desired thin strip shape. The apparatus and process includes a first portion containing a sump of said material in molten form. A second portion is located downstream of and communicates with the first portion. The second portion defines a containment zone of 5 mm or less for electromagnetically shaping the molten material into the thin strip shape whereby efficiency is improved through reduction of power consumption.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: February 15, 1983
    Assignee: Olin Corporation
    Inventors: John C. Yarwood, Gerhart K. Gaule, Gary L. Ungarean
  • Patent number: 4372352
    Abstract: In a foam dispensing head for discharging foam in a low pressure system there is provided at least first and second orifice rods rotatably insertable within receiving bores cooperative respectively with adjacent first and second mix component infeed ports, each rod having a plurality of predetermined sized orifices therein through which the mix components flow under pressure to a mixing chamber in impinging fashion to selectively permit the desired flow rate of mix components to be maintained into the mixing chamber so as to insure proper admixing of the foam at selected predetermined flow rates.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: February 8, 1983
    Assignee: Olin Corporation
    Inventors: Pasquale J. Coppola, Gerald V. Dever, Jr.
  • Patent number: 4369832
    Abstract: A continuous lubrication casting mold for use in a process of continuously casting molten metals and alloys wherein a parting and/or lubricating agent reservoir is provided in the mold body. The agent is continuously applied over the inner surface of the mold after being introduced through passages within or through the mold section. The lubricant passages may be an intrinsic characteristic of the mold material or may be provided in the form of feed holes through the mold section. The ability to transmit lubricant through to the internal surface of the mold can be varied within the length of the casting mold to provide for variable lubricant transfer rates to different parts of the casting surface.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: January 25, 1983
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Derek E. Tyler
  • Patent number: 4370214
    Abstract: An electrode for use in the electrolysis of aqueous solutions of ionizable compounds is produced by a method which comprises affixing filaments to a support fabric to form a network of filaments. An electroconductive metal is deposted on the filaments to form metal coated filaments. During the metal deposition, interfilament bonding takes place at contact sites between adjacent filaments. Removing the support fabric from the metal coated filament network produces a reticulate electrode having a porosity of at least about 80 percent. The three dimensional electrodes are highly conductive, have high internal surface area, and are mechanically strong.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: January 25, 1983
    Assignee: Olin Corporation
    Inventor: Igor V. Kadija
  • Patent number: 4370361
    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 cuter 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 NiAl.sub.3 structure and then leaching out the Al to produce a Raney surface.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: January 25, 1983
    Assignee: Olin Corporation
    Inventor: Thomas J. Gray
  • Patent number: 4368073
    Abstract: Disclosed is a process for separating gold from acidic solutions having a pH below about 3 which comprises the steps of:(a) adding a sufficient amount of the sodium salt of 2-mercaptopyridine-N-oxide to cause at least a portion of the gold in the aqueous acidic solution precipitate from the solution; and(b) separating the precipitated gold from the acidic solution.Also disclosed is that gold is selectively precipitated from acidic solutions containing other metals [e.g., Fe, Cu, Zn, Sn] when the molar ratio of added sodium 2-mercaptopyridine-N-oxide to gold in the acidic solution is less than about 1.5:1.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: January 11, 1983
    Assignee: Olin Corporation
    Inventors: Sigmund Breister, Joseph R. Reiner
  • Patent number: 4368109
    Abstract: In an electrolytic cell, spacers of predetermined thickness are positioned with improved sealing apparatus between the plurality of adjacently positioned and generally parallel electrodes to define and maintain a uniform gap of predetermined thickness between planes which pass through at least the adjacent sides of each pair of adjacent electrode frames.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: January 11, 1983
    Assignee: Olin Corporation
    Inventor: James M. Ford
  • Patent number: 4367123
    Abstract: A process and apparatus for electroplating a spot of metal on a substrate and optionally a plurality of such spots in a desired arrangement. A column of electrolyte having a transverse cross-sectional shape corresponding about to the shape of the desired spot of metal to be plated is formed between an anode and the substrate which is connected as a cathode. The electrolyte is supplied by force of gravity with a desired hydrostatic head pressure. The substrate can be sequentially advanced to electrodeposit spots of metal at different points on the substrate.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: January 4, 1983
    Assignee: Olin Corporation
    Inventor: Alexander F. Beck
  • Patent number: 4367213
    Abstract: Disclosed is a process for reducing hexavalent chromium [Cr(VI)] in aqueous solutions to trivalent chromium [Cr(III)] by reacting a catalyzed hydrazine composition with the hexavalent chromium at a pH in the range from about 6.0 to about 8.0 to form an aqueous slurry of trivalent chromium compound, said catalyzed hydrazine composition comprising(a) a hydrazine compound,(b) at least 0.0005 parts by weight of a quinone compound per one part of hydrazine compound; and, preferably;(c) at least about 0.0005 parts by weight of an organometallic complex per part of hydrazine compound, said organometallic complex being the reaction product of:(i) a hydroxide selected from the group consisting of cobaltous hydroxide and manganous hydroxide; and(ii) at least one organic ligand selected from the group consisting of unsubstituted and substituted amino derivatives of carboxylic acids and salts thereof.The solid particles of trivalent chromium may then be separated from the aqueous solution by conventional means (e.g.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: January 4, 1983
    Assignee: Olin Corporation
    Inventors: Louis C. Fiorucci, Michael E. Johnson
  • Patent number: 4367209
    Abstract: A process for producing neutral calcium hypochlorite which comprises reacting an aqueous slurry of lime containing insoluble impurities with chlorine to form a first slurry of dibasic calcium hypochlorite crystals and insoluble impurities. The insoluble impurities are separated from the first slurry by employing separation means for classifying solids with respect to particle size. Dibasic calcium hypochlorite crystals are then separated and admixed with an alkali metal hypochlorite and recycle dibasic calcium hypochlorite crystals to form a mixing zone slurry. This slurry is reacted with chlorine to form a paste of neutral calcium hypochlorite. The paste is separated into a cake of neutral calcium hypochlorite and a paste liquor and the cake of neutral calcium hypochlorite recovered. The paste liquor is reacted with lime to form a second slurry of dibasic calcium hypochlorite crystals which are separated from their mother liquor and returned to the mixing zone as recycle dibasic calcium hypochlorite.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: January 4, 1983
    Assignee: Olin Corporation
    Inventors: Walter J. Sakowski, Budd L. Duncan
  • Patent number: 4367134
    Abstract: A method of assembling an electrolytic membrane cell is disclosed. The method includes the steps of conditioning the membranes with a conditioning fluid, assembling a vertical stack of horizontal electrode frames with a horizontal membrane sheet between each pair of frames, applying pressure to vertically compress the vertical stack, rotating the compressed vertical stack from a vertical orientation through approximately 90.degree. in which orientation of the stack is called a "pack", connecting the pack into an electrical circuit and to raw material supply lines and product withdrawal lines and then electrically operating the pack while maintaining the pack in a horizontal orientation.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: January 4, 1983
    Assignee: Olin Corporation
    Inventor: Morton S. Kircher
  • Patent number: 4366265
    Abstract: A novel process for the preparation of starch-amine-based polyols which involves reacting starch with a polyhydric alcohol in the presence of an acid catalyst to form a crude polyglucoside reaction product, the proportion of alcohol to starch being at least 0.3 mole of alcohol per glucose unit weight of starch. An amine compound is admixed with the reaction product, and the mixture is then oxyalkylated with a lower alkylene oxide. Polyurethane foams may be prepared by reacting the resulting polyether polyols with an organic polyisocyanate in the presence of a foaming agent and a reaction catalyst. The physical properties of the resulting foams are excellent.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: December 28, 1982
    Assignee: Olin Corporation
    Inventors: Stephen Fuzesi, John G. Bayusik
  • Patent number: 4363352
    Abstract: A continuous lubrication casting mold for use in a process of continuously casting molten metals and alloys wherein a parting and/or lubricating agent reservoir is provided in the mold body. The agent is continuously applied over the inner surface of the mold after being introduced through passages within or through the mold section. The lubricant passages may be an intrinsic characteristic of the mold material or may be provided in the form of feed holes through the mold section. The ability to transmit lubricant through to the internal surface of the mold can be varied within the length of the casting mold to provide for variable lubricant transfer rates to different parts of the casting surface.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: December 14, 1982
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Derek E. Tyler
  • Patent number: 4362262
    Abstract: Novel and advantageous metal laminates particularly useful in making coins comprising a copper core and a cladding metallurgically bonded thereto of a copper base alloy containing from 2 to 3.5% aluminum, from 1 to 2.5% silicon and the balance essentially copper. Disclosure also teaches a method of preparing copper laminates by providing a copper core in strip form in the hard temper and a copper alloy cladding fully annealed in strip form, wherein the components are rolled together in a single pass with a reduction of from 50 to 75% to provide the metallurgically bonded laminate.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: December 7, 1982
    Assignee: Olin Corporation
    Inventors: Joseph Winter, William Brenneman, Julius C. Fister
  • Patent number: 4361445
    Abstract: A rapid and effective surface cleaning process for copper alloys, particularly copper alloys containing aluminum and other metals tending to form surface coatings of refractory oxides during annealing treatments, consists of treating such alloys or articles fabricated thereof for a short time in a hot aqueous solution of an alkali hydroxide, rinsing with water, and then immersing for a short time in a hot aqueous solution of ferric sulfate, or other ferric salt of a mineral acid, followed by rinsing with water.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: November 30, 1982
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Murray A. Heine, Andrew J. Brock
  • Patent number: 4360671
    Abstract: A highly pure cyanuric acid produced by pyrolyzing a nitrogenous containing material capable of yielding cyanuric acid, such as urea, in an alkyl dinitrile solvent such as adiponitrile, at elevated temperatures, is disclosed. The overall process converts substantially all of the urea to cyanuric acid and cyanuric acid derivatives which are capable of being converted into trichloroisocyanuric acid and similar compounds, while allowing substantially complete recovery of the nitrile solvent for reuse.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: November 23, 1982
    Assignee: Olin Corporation
    Inventors: John A. Wojtowicz, Douglas A. Farmer, Jr.