Patents Assigned to Olin
  • Polyurethane elastomers and polyurea elastomers made using high functionality, low unsaturation level polyols prepared with double metal cyanide catalysts
    Patent number: 5136010
    Abstract: This invention relates to a method of fabricating an elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of no greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocyanate to produce an isocyanate-terminated prepolymer, and (e) reacting said isocyanate-terminated prepolymer with a chain extender in a mold in order to produce the elastomer. Also claimed is the elastomer produced by the above method utilizing a one-shot technique.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: August 4, 1992
    Assignee: Olin Corporation
    Inventors: John W. Reisch, Deborah M. Capone
  • Seal ring for pyrotechnically initiated projectile
    Patent number: 5133259
    Abstract: A pyrotechnically initiated explosive projectile has coaxially arranged, a nose incendiary, a penetrator core, a high explosive, and an overall jacket. A seal ring is installed between the nose incendiary and the penetrator core to preclude relative movement between the core and the jacket during projectile assembly, acceleration and spin up from prematurely igniting the incendiary charge. The seal ring has a front collar portion which preferably has a diameter greater than that of the inside diameter of the jacket so that the collar scrapes the inside wall of the jacket during insertion to remove incendiary residual so that no incendiary can lodge between the jacket and the penetrator core.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: July 28, 1992
    Assignee: Olin Corporation
    Inventor: David K. Schluckebier
  • Dual range periodic chemical dispenser for swimming pools
    Patent number: 5133381
    Abstract: An improved chemical feeder employing periodic partial immersion in a forced circulation system is provided having a soluble chemical hopper, and a dissolving chamber into which the soluble chemical chamber extends an adjustable distance and a discharge chamber in fluid flow communication with the dissolving chamber to selectively receive chemically treated water from the dissolving chamber and discharge it into a flow loop connected to the forced circulation system. A visual indicator ring is preferably present to show the height of the hopper. The adjustable hopper allows an expanded range of chemical feed rates for the feeder.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: July 28, 1992
    Assignee: Olin Corporation
    Inventors: Richard B. Wood, Christopher M. Zetena, Richard M. Mullins, Carl V. Schatz
  • Carrier ring having first and second ring means with bonded surfaces
    Patent number: 5132773
    Abstract: A two-piece carrier ring is provided. First and second rings are affixed to opposing sides of the exterior portion of a leadframe and protect the leads from distortion. The rings are molded prior to bonding to the leadframe so that the rings may be formed from a wide variety of plastics. The premolded rings are polymerized prior to bonding preventing distortion of the leads by shrinking of the rings.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: July 21, 1992
    Assignee: Olin Corporation
    Inventors: Jeffrey S. Braden, Matthew D. Penry
  • Process for producing perchloric acid and ammonium perchlorate
    Patent number: 5131989
    Abstract: Ammonium perchlorate is produced a process which comprises:(a) oxidizing a solution of chloric acid substantially free of ionic impurities,(b) introducing gaseous ammonia or an ammonium hydroxide solution into the crystallizing zone to produce ammonium perchlorate crystals, wherein the aqueous solution of perchloric acid and/or the ammonium hydroxide solution is in droplet form.High purity ammonium perchlorate crystals can now be produced directly which are free of transition metals, sulfates and phosphates, as well as substantially free of other ionic impurities including alkali metals, chlorate and chloride.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: July 21, 1992
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Richard W. Ralston, Jr., Harry J. Loftis
  • Intermediate transfer surface and method of color printing
    Patent number: 5132743
    Abstract: an improved intermediate transfer surface employing a conductive material dispersed in a fluorosilicone layer is provided for use in electrostatic color image transfers. The intermediate transfer surface is heat and solvent resistant and retains its electrical conductivity upon exposure to both heat and solvent, while exhibiting excellent thermal release characteristics for contact transfers of dried liquid color toners. A method of xeroprinting a color image onto a receiving substrate using a first electrostatic transfer through a liquid-filled gap to the conductive intermediate transfer surface and then a second contact transfer from the conductive intermediate transfer surface to a final receiving surface is also disclosed.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: July 21, 1992
    Assignee: Olin Corporation
    Inventors: David P. Bujese, Peter E. Materazzi
  • Belt casting of molten metal
    Patent number: 5131451
    Abstract: A method and apparatus for the casting of metals in which a molten stream of metal is atomized into a spray of highly liquid droplets. The droplets are deposited on a moving substrate such as an endless belt provided with side dams. The droplets flow in a direction transverse to the direction of movement of the substrate and are contained by the side dams. The droplets may have an average size of 300 microns and the spray may have a liquid to solid ratio of at least 50%. This arrangement overcomes the problems of splashing and turbulence caused by the relative flow between the melt and the belt in regular belt casting and overcomes porosity problems associated with spray casting.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: July 21, 1992
    Assignee: Olin Corporation
    Inventors: Sankaranarayanan Ashok, Harvey P. Cheskis
  • Hunting bullet with reduced environmental lead exposure
    Patent number: 5127332
    Abstract: A controlled expanding small caliber bullet is disclosed which comprises a unitary metal body of generally H shaped cross section having an ogival nose portion, a cylindrical heel portion behind the nose portion, and an integral transverse partition therebetween. The nose portion has an empty hollow point formed by a forwardly open central blind bore. The heel portion has a rearwardly opened cavity filled with a dense material such as lead. The cavity is closed behind the lead core by a solid disk crimped into mechanical engagement with the heel portion of the metal body.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: July 7, 1992
    Assignee: Olin Corporation
    Inventors: Alan J. Corzine, Gerald E. Eberhart
  • Reduced recoil compression formed shotshell casing
    Patent number: 5127331
    Abstract: A shotshell casing has a tubular body with an open mouth end and an integral compression formed basewad portion at the other end. A metal case head is preferably installed over the basewad portion. The basewad portion has a circumferential channel in the wall of the body above the end of the basewad portion. This channel forms a cavity beneath the metal case head which collapses upon propellant ignition to absorb a portion of the recoil force produced upon shotshell firing.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: July 7, 1992
    Assignee: Olin Corporation
    Inventor: Billy J. Stoops
  • Hermetically sealed shot shell having an increased volume and a method for making same
    Patent number: 5121693
    Abstract: An increased volume shotshell having a biaxially oriented plastic tubular body has an end closure disk heat sealed to the open end of the shotshell eliminating the conventional star crimp closure. The increases volume results from making available the space normally taken up by the internal folds of the crimp. The end closure on the open end of the shotshell tube is fused to the tubular body to seal the shot load without destroying the biaxial orientation of the open end of the tubular body.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 16, 1992
    Assignee: Olin Corporation
    Inventor: Gregory R. Kosteck
  • Lead frame having polymer coated surface portions
    Patent number: 5122858
    Abstract: A composite leadframe for electronic packages is provided. A polymer layer coats a portion of the leadframe. The polymer layer increases the adhesive bond between the leadframe and a molding resin. Water vapor does not accumulate under the leads and die attach paddle minimizing the popcorn effect.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: June 16, 1992
    Assignee: Olin Corporation
    Inventors: Deepak Mahulikar, Julius C. Fister, Gerald N. Violette
  • Incorporation of ceramic particles into a copper base matrix to form a composite material
    Patent number: 5120612
    Abstract: A method of casting a copper based composite which includes a second phase ceramic particles. A copper or copper based alloy containing a eutectic reactive element is spray cast with the ceramic particles being injected into the spray cast stream of material prior to its being deposited onto the moving substrate. The eutectic reactive element diffuses into the ceramic particles and provides a good bond between the copper based matrix and the second phase ceramic particles. The ceramic particles may be selected from the group consisting of oxides, borides, nitrides, carbides and mixtures thereof. The eutectic reactive materials may include zirconium, chromium, titanium, aluminum and magnesium.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: June 9, 1992
    Assignee: Olin Corporation
    Inventor: Sankaranarayanan Ashok
  • Process for purifying wastewater with hypochlorous acid
    Patent number: 5120452
    Abstract: A process for treating wastewater the improvement which comprises admixing with the wastewater at least 0.5 percent by weight of a solution consisting of hypochlorous acid having a pH of less than 3 to prepare disinfected wastewater having substantially no available chlorine residual.The novel process of the present invention provides rapid, intimate mixing of the highly pure, highly acidic hypochlorous acid solution with the wastewater stream to disinfect wastewater bodies while minimizing unwanted side effects. The process eliminates the need for storing and handling pressurized gaseous or liquid chlorine.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: June 9, 1992
    Assignee: Olin Corporation
    Inventors: Richard C. Ness, Budd L. Duncan, Sudhir K. Mendiratta, Donald R. Leonard
  • Anionic polycarboxylated surfactants as dye-leveling agents
    Patent number: 5120326
    Abstract: The present invention relates to a new dye-leveling agent for acid dyes, as well as a blend of the dye-leveling agent with a wetting agent. The acid dye-leveling agent enables polyamide-containing fibers to be evenly dyed without streaking during dyeing of the fibers. The dye-leveling agents are particularly useful with respect to nylon, wool, and silk fibers.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: June 9, 1992
    Assignee: Olin Corporation
    Inventors: Thomas C. Hemling, Harry Stitzel
  • Process for purifying impotable water with hypochlorous acid
    Patent number: 5118426
    Abstract: A process for sanitizing impotable water the improvement which comprises admixing with the impotable water a solution consisting of hypochlorous acid containing at least 0.5 percent by weight of HOCl and having a pH of less than 3 to prepare potable water having an available chlorine residual.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: June 2, 1992
    Assignee: Olin Corporation
    Inventors: Budd L. Duncan, Richard C. Ness, Sudhir K. Mendiratta, Donald R. Leonard
  • Thermoset polyurethane elastomers and polyurea elastomers made using high functionality, low unsaturation level polyols prepared with double metal cyanide catalysts
    Patent number: 5116931
    Abstract: This invention relates to a method of fabricating a thermoset elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of not greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocynate to produce an isocyanate-terminated prepolymer, and (e) reacting said isocyanate-terminated prepolymer with a chain extender other than ethylene glycol in a mold in order to produce the elastomer. Also claimed is the elastomer produced by the above method utilizing a one-shot technique.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: May 26, 1992
    Assignee: Olin Corporation
    Inventors: John W. Reisch, Deborah M. Capone
  • Non-catalytic oxidation of propylene to propylene oxide
    Patent number: 5117011
    Abstract: There is provided a process for the non-catalytic oxidation of gaseous hydrocarbons, preferably propylene. A mixture of propylene, oxygen and a inert diluent are provided to a rector vessel capable of maintaining an isothermal reaction. Maintaining a temperature in the range of about 200.degree. C. to about 350.degree. C. and a propylene partial pressure of about 80 psia to about 300 psia provides the highest propylene oxide selectivity.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: May 26, 1992
    Assignee: Olin Corporation
    Inventors: Ruford T. Pennington, Michael C. Fullington
  • Method of producing a hypohalogenated acid
    Patent number: 5116593
    Abstract: A method of using an elongated, generally vertically extending cocurrent reactor vessel for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a gaseous halogen is provided wherein an atomizer is mounted near the top of the reactor vessel to atomize the liquid alkali metal hydroxide into droplets in the vessel. The vessel has a spraying and reaction zone immediately beneath the atomizer and a drying zone beneath the spraying and reaction zone to produce a gaseous hypochlorous acid and a substantially dry solid salt by-product.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: May 26, 1992
    Assignee: Olin Corporation
    Inventors: James K. Melton, Garland E. Hilliard, John H. Shaffer
  • Container for swimming pool chemical tablets
    Patent number: D328332
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: July 28, 1992
    Assignee: Olin Corporation
    Inventor: Raymond N. Fink
  • Container for swimming pool chemical tablets for use in skimmers, floaters or feeders
    Patent number: D328333
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: July 28, 1992
    Assignee: Olin Corporation
    Inventor: John M. Casberg