Patents Assigned to Olin
  • Patent number: 3987129
    Abstract: An improved process is disclosed for the preparation of bis(2-haloalkyl) phosphorohalidates. This process comprises the steps of reacting phosphorus trihalide with a stoichiometric excess of alkylene oxide to form tris(2-haloalkyl) phosphite, substantially eliminating the presence of unreacted alkylene oxide in the tris(2-haloalkyl) phosphite, and finally converting it to bis(2-haloalkyl) phosphorohalidate by reaction with halogen.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: October 19, 1976
    Assignee: Olin Corporation
    Inventors: Philip M. Pivawer, Adrian D'Souza, Joseph J. Levitzky
  • Patent number: 3985589
    Abstract: Processing copper base alloys to improve the stress corrosion resistance thereof. Copper base alloys containing from 12.5 to 30% nickel and 12.5 to 30% manganese are subjected to a duplex aging treatment in order to improve the stress corrosion resistance thereof.
    Type: Grant
    Filed: November 1, 1974
    Date of Patent: October 12, 1976
    Assignee: Olin Corporation
    Inventors: Stanley Shapiro, Richard D. Lanam
  • Patent number: 3983761
    Abstract: An endless woven garniture tape or belt for cigarette making machines comprising a combination of natural, chemically modified, and synthetic fibers in a unique blend and arrangement which possesses properties that result in superior wear life performance without sacrificing other performance criteria. The warp is made from combed sak cotton fiber threads, with a multiplicity of such threads mercerized and plied together to form each warp thread. The filling threads are made up of a multifilament synthetic core wrapped with cotton fiber with a multiplicity of such wrapped threads plied together to form each filling thread. Endless belts made according to this invention have a wear life approximating three times the normal wear life of conventional belts used on cigarette making machines.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: October 5, 1976
    Assignee: Olin Corporation
    Inventor: Emory Eugene Stewart
  • Patent number: 3983048
    Abstract: The rapid removal of dissolved oxygen from aqueous solutions is accomplished by the use of a composition comprised of a mixture of an aqueous solution of hydrazine and a catalytic proportion of an aryl amine compound. The compositions of this invention are particularly useful in the removal of dissolved oxygen from aqueous solutions such as boiler water, thereby inhibiting corrosion of the metal surfaces of the boiler.
    Type: Grant
    Filed: December 10, 1973
    Date of Patent: September 28, 1976
    Assignee: Olin Corporation
    Inventors: Henry W. Schiessl, John D. Kaufman, David A. Csejka
  • Patent number: 3983025
    Abstract: An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained and compared with predetermined standards. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: September 28, 1976
    Assignee: Olin Corporation
    Inventor: Richard W. Ralston, Jr.
  • Patent number: 3980322
    Abstract: A device for stopping a runaway ski from sliding down a hill after a skier has fallen and the ski has been released from the skier's foot. Provision is made so that the ski will not be released from the skier's foot in a static drop situation, such as where the ski accidentally comes loose from the skier's foot while the skier is riding on a lift, but will be released in a dynamic release situation, such as where the skier falls while skiing.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: September 14, 1976
    Assignee: Olin Corporation
    Inventor: Hermann Schultes
  • Patent number: 3980544
    Abstract: Apparatus is provided for securing a fabricated diaphragm to each of a section of electrodes. A diaphragm encloses each electrode and has an open end adjacent to the electrode plate. The apparatus comprises two bars, one positioned along a first side and one positioned along a third side of the electrode section. A plurality of elements are attached to each of the bars. The elements are positioned between adjacent electrodes and secure one edge of each of two adjacent diaphragms. The elements may be interconnected to provide additional sealing of the diaphragm. A rod is positioned along the second and fourth sides of the electrode section to seal the outer edge of the diaphragm enclosing the external electrodes of the section.The apparatus is employed in electrolytic diaphragm cells for producing chlorine and caustic soda by the electrolysis of alkali metal chloride solutions.A method is provided for employing the apparatus to effectively seal the diaphragm to the electrode section.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: September 14, 1976
    Assignee: Olin Corporation
    Inventors: John O. Adams, Kenneth E. Woodard, Jr., Steven J. Specht
  • Patent number: 3980579
    Abstract: A catalytically stabilized polyol composition, for use in the preparation of polyurethane foam, is disclosed which comprises a halogen-containing polyol, an amine catalyst and a sulfur-containing organotin compound.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: September 14, 1976
    Assignee: Olin Corporation
    Inventors: Allan H. Syrop, Peter P. Priga
  • Patent number: 3978602
    Abstract: A shell deflector-catcher which can be removably mounted on the receiver of a firearm adjacent to the shell ejection port therein. The device is provided with tabs which engage walls of the receiver and a springy finger which lies adjacent to the ejection port and contacts spent shells ejected therefrom to deflect the shells downwardly toward the ground. The spring finger may be fitted with a removable cap which enlarges the dimensions of the finger to enable it to cooperate with one side wall of the ejection port to catch ejected shells and prevent them from falling to the ground.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: September 7, 1976
    Assignee: Olin Corporation
    Inventors: Edward Lucas Morrow, Peter Edward Colatosti
  • Patent number: 3979427
    Abstract: A process for preparing an organic isocyanate by reacting an organic nitroso compound with carbon monoxide in the presence of a catalyst comprised of a mixture of a noble metal and a Lewis acid.
    Type: Grant
    Filed: January 21, 1969
    Date of Patent: September 7, 1976
    Assignee: Olin Corporation
    Inventors: Gerhard F. Ottmann, David F. Gavin, Ehernfried H. Kober
  • Patent number: 3979403
    Abstract: A process is provided for preparing 3-trichloromethyl-5-chloro-1,2,4-thiadiazole in improved yields by reacting a defined molar excess trichloroacetamidine with trichloromethanesulfenyl chloride while controlling pH of the reaction mixture. The present process may advantageously be employed in a batch or continuous process.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: September 7, 1976
    Assignee: Olin Corporation
    Inventors: Philip M. Pivawer, Douglas A. Farmer, Jr.
  • Patent number: 3978880
    Abstract: A diaphragm and valve assembly using the same for controlling fluid flow from a pressurized source of fluid. The diaphragm is longitudinally perforated at a peripheral area to permit axial flow of the fluid past the diaphragm, and is radially perforated to provide ambient atmospheric pressure on the downstream side of the diaphragm. The valve assembly is of the type which regulates fluid flow in response to pressure changes occurring at the fluid source which pressure changes result from ambient temperature changes thus establishing a preset fluid flow rate which persists throughout a wide range of ambient temperatures.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: September 7, 1976
    Assignee: Olin Corporation
    Inventors: Marlyn Dale Crown, Carl Eugene Finley
  • Patent number: 3976675
    Abstract: A novel silicate-based surfactant composition is prepared by a selective process involving (1) reaction of silicon tetrahalide with water and alcohol followed by (2) transesterification with a polyether alcohol. The resulting surfactant composition is utilized as a stabilizer in the production of polyurethane foam.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: August 24, 1976
    Assignee: Olin Corporation
    Inventors: Robert N. Scott, Henry F. Lederle, Frank J. Milnes, Maurice A. Raymond
  • Patent number: 3976477
    Abstract: A high conductivity high temperature copper alloy containing mischmetal and phosphorus in a specific ratio. The alloy is free from internal copper oxides and is suitable for applications requiring stability at elevated temperatures. Strengths on the order of 70 KSI and conductivities on the order of 90% IACS are obtainable in cold worked material.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: August 24, 1976
    Assignee: Olin Corporation
    Inventors: Jacob Crane, Eugene Shapiro
  • Patent number: 3976756
    Abstract: A method for preparing hydrazine and its compounds is described. Hypochlorous acid in a non-aqueous solvent is reacted with a carbonyl compound and with a nitrogen-contributing compound selected from the group consisting of ammonia, primary alkyl amines and mixtures of these. Hydrazine intermediates such as azines, hydrazones, and diazacyclopropanes are obtained and these may, if desired, be converted to hydrazine and its compounds, e.g., by hydrolysis.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: August 24, 1976
    Assignee: Olin Corporation
    Inventor: John A. Wojtowicz
  • Patent number: 3975255
    Abstract: Inter-electrode spacing in an electrolytic diaphragm cell is controlled by the attachment of a spacer to the anode edge which is closest to the cathode wall. In addition to providing the proper inter-electrode spacing the spacer serves as a guide for the anode during the positioning of an anode between adjacent diaphragm covered cathodes while assembling in cell. This minimizes damage to the diaphragm during assembly.
    Type: Grant
    Filed: February 27, 1974
    Date of Patent: August 17, 1976
    Assignee: Olin Corporation
    Inventor: Morton S. Kircher
  • Patent number: 3970041
    Abstract: An apparatus for depositing a fibrous diaphragm on electrodes having foraminous surfaces which includes a tank having a bottom and side walls. A dividing means, such as a rack, having a plurality of frames, each having a top edge, and side edges, is positioned in the tank. The rack may be attached along one of the side edges of the frames to one of the side walls of the tank or it may be secured to support members positioned on the bottom of the tank. The frames of the rack are spaced apart from each other by a distance related to the spacing between electrodes. The frames may have cross members joining the side edges and have rollers on the top edge and the cross members.The apparatus is suitably used in depositing a fibrous diaphragm on electrodes having a large surface area and narrow spacing between adjacent electrodes. The apparatus prevents bridging of the fiber between electrodes and also prevents adjacent electrodes from being drawn together during the application of a vacuum to deposit the diaphragm.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: July 20, 1976
    Assignee: Olin Corporation
    Inventor: Morton S. Kircher
  • Patent number: 3969546
    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 in a fluidized bed. 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 particles is removed from the spraying zone and further processed, if desired. In one embodiment, the coated particles with or without sizing are further dried to produce granular particles having the desired moisture content.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: July 13, 1976
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman
  • Patent number: 3969423
    Abstract: A continuous process for preparing 2,4,4,4-tetrachlorobutanol by reacting allyl alcohol with carbon tetrachloride in the presence of a catalyst system comprised of carbon dioxide and an iron-containing material.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: July 13, 1976
    Assignee: Olin Corporation
    Inventor: Neal E. Morganson
  • Patent number: 3968170
    Abstract: A new group of halogenated acetals is disclosed. These acetals, which are derived from the reaction of 2,4,4,4-tetrachlorobutanol with an aldehyde, are useful as additives for reducing the burning rate of polyurethane foam.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: July 6, 1976
    Assignee: Olin Corporation
    Inventors: John S. Babiec, Jr., Richard J. Turley