Patents Assigned to Olin
  • Method of imaging resist patterns of high resolution on the surface of a conductor
    Patent number: 4661431
    Abstract: An electrostatic latent image in a desired pattern is formed on an electrostatically imageable surface and toned with a liquid toner to form a toner image on the surface. The toner image is then transferred while still wet to a transfer sheet and then to the surface of a conductor, or the toner image may be transferred directly to the surface of a conductor without a transfer sheet, such direct transfer being preferred. The toner image is then fused to the conductor surface to provide an etch resist pattern of high resolution on the conductor surface. The conductor may then be etched to form a high density printed circuit. In the direct transfer method a nonpolar insulating solvent-carrier is applied to the surface of the conductor and the electrostatically imageable surface.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: April 28, 1987
    Assignee: Olin Hunt Specialty Products, Inc.
    Inventors: David P. Bujese, Peter J. Calabrese, Gary W. Schmidt, Abelardo M. Santos
  • Hydrazine stabilizers for nc propellants
    Patent number: 4659403
    Abstract: The invention relates to propellant powders and specifically to stabilizers for nitrocellulose-based propellant powders.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: April 21, 1987
    Assignee: Olin Corporation
    Inventors: Ernest J. Kirschke, Eugene F. Rothgery
  • Method of making low thermal expansivity and high thermal conductivity substrate
    Patent number: 4659404
    Abstract: A composite is provided which is adaptable to be a substrate for an electronic application. The composite comprises first material particles having a coefficient of thermal expansion in the range of about -20.times.10.sup.-7 to about 50.times.10.sup.-7 in/in/.degree. C. Second material particles having a coefficient of thermal expansion in the range of about 100.times.10.sup.-7 to about 200.times.10.sup.-7 in/in/.degree. C. are mixed with the first material particles. A bonding agent adheres the first and second material particles into a coherent composite having a coefficient of thermal expansion in the range of about 1.times.10.sup.-7 to about 50.times.10.sup.-7 in/in/.degree. C.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: April 21, 1987
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Method of producing ferromagnetic particles
    Patent number: 4657583
    Abstract: The present invention relates to a method for producing magnetic particles for use in recording media. The method comprises providing an alloy capable of forming a magnetic precipitate, aging the alloy to form a magnetic precipitate comprising a plurality of magnetic particles dispersed throughout a surrounding matrix; and dissolving the matrix to leave the magnetic particles. Magnetic particles produced by the present method are characterized by a size in the range of about 100 .ANG. to about 2000 .ANG., a single magnetic domain, an aspect ratio up to about 10:1, a relatively smooth surface, and a substantially uniform composition throughout.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: April 14, 1987
    Assignee: Olin Corporation
    Inventors: Jacob Crane, George J. Muench, Yousef Saleh, Lifun Lin
  • Process for producing cyanuric acid from urea hydrohalides
    Patent number: 4656271
    Abstract: A process for producing cyanuric acid which comprises feeding a urea hydrohalide compound to a pyrolysis zone.The urea hydrohalide compound is pyrolyzed to produce a solid reaction mixture of cyanuric acid and an ammonium halide. The solid reaction mixture is vaporized to remove the ammonium halide to form a gaseous mixture containing ammonia and hydrogen halide which is simultaneously removed from the pyrolysis zone. The cyanuric acid recovered is substantially free of ammonium halide.The novel process produces high purity cyanuric acid in the absence of liquid effluents while readily recovering the ammonia and hydrogen halide values.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: April 7, 1987
    Assignee: Olin Corporation
    Inventor: John A. Wojtowicz
  • Hermetically sealed semiconductor casing
    Patent number: 4656499
    Abstract: An improved hermetically sealed semiconductor casing and a process for producing the casing are disclosed. This casing includes a lead frame having an electrical device affixed thereto. A base member is glass bonded to a matching surface of the lead frame. A metal window frame shaped device is provided having one surface with a refractory oxide coating and a second opposite readily solderable surface. The refractory oxide layer of the window frame device is glass bonded to the lead frame and the base member. The semiconductor or electrical device is connected to the lead frame after the window frame has been glass bonded into place. A metal lid having a solderable surface is solder bonded to the solderable surface of the window frame to hermetically seal the electrical device within the casing.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: April 7, 1987
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • High velocity notched ammunition sabot
    Patent number: 4653404
    Abstract: A high velocity ammunition sabot with internal notches of special design to give reliable break-up upon exit from a rifled gun barrel due to centrifugal forces.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: March 31, 1987
    Assignee: Olin Corporation
    Inventor: Henry J. Halverson
  • Polyurethane foam for cleaning and germicidal applications
    Patent number: 4654234
    Abstract: A flexible non-reticulated foam pad having on a surface thereof a polyurethane coating consisting essentially of a cured isocyanate-terminated prepolymer, the penetration of the prepolymer coating being no more than about 50 percent of the thickness of the flexible urethane foam. The coated surface provides an abrasive area which enhances its use in cleaning applications as well as increasing the resistance to tear propagation of the wet foam. In addition, the major portion of the foam pad is available for the release of cleaning and sanitizing agents or the absorption of liquids such as water. The novel foam pads are suitable for household, institutional and industrial use.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: March 31, 1987
    Assignee: Olin Corporation
    Inventors: Michael L. Rosin, Feagin A. Wing, Jr.
  • Apparatus and process for the continuous plating of wide delicate metal foil
    Patent number: 4652346
    Abstract: The present invention relates to a process and apparatus for forming a substantially uniform electrodeposit on a metal or metal alloy foil. The apparatus includes a frame assembly for substantially preventing bowing and/or flapping of the metal or metal alloy foil and for promoting substantially uniform electrodeposits by maintaining the gap between the foil and each treatment anode substantially constant. The process and apparatus have particular utility in the treatment of delicate copper foil for use in electronic and electrical applications.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: March 24, 1987
    Assignee: Olin Corporation
    Inventor: Ned W. Polan
  • Plasma deposition applications for communication cables
    Patent number: 4652323
    Abstract: The present invention is directed to a communication cable having improved adhesion between metallic and non-metallic layers. The cable has a metallic core structure in which at least one optical fiber and/or electrical conductor is housed, at least one external layer fabricated from a non-metallic material and an adherent, plasma deposited polymeric film coating between the core structure and an external layer for improving the adhesion between the core structure and the external layer. A process and apparatus for fabricating the communication cable are also described.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: March 24, 1987
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Plastic armor piercing projectile
    Patent number: 4649829
    Abstract: A plastic covered armor piercing projectile with tubular monocoque penetrator surrounded by lightweight metal washers mounted on a metal butt plug all surrounded by an aerodynamic plastic skin.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: March 17, 1987
    Assignee: Olin Corporation
    Inventor: Stephen J. Bilsbury
  • Projectile with enhanced target penetrating power
    Patent number: 4648324
    Abstract: A projectile with enhanced power for penetrating a target includes an elongated thick-walled casing having a main body with a cavity and a nose with a bore. The nose is interfitted with the main body such that its bore merges with the cavity. An elongated rod-like heavy penetrator extends longitudinally through the main body cavity and into the nose bore. An incendiary charge is disposed in the nose bore, whereas an explosive charge is disposed in the main body cavity. An annular ring is anchored to the main body at the location where the nose bore merges with the main body cavity. The ring has a central opening through which the penetrator is received and aligned for forward penetrating travel upon impact of the nose with the target. The ring separates the nose bore and the main body cavity, retaining the incendiary charge in the nose bore.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: March 10, 1987
    Assignee: Olin Corporation
    Inventor: Brian K. McDermott
  • Method for producing a metal alloy strip
    Patent number: 4648437
    Abstract: A method for producing a metallic strip is disclosed. A metallic melt containing above about 20% by weight of iron is formed into a strip so that fine iron particles are distributed throughout. The strip may be rolled to elongate the iron particles.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: March 10, 1987
    Assignee: Olin Corporation
    Inventors: Michael J. Pryor, Michael L. Santella
  • Electrical component forming process
    Patent number: 4649083
    Abstract: The process of forming a composite with an alloy having an alloy component of about 0.5 to 12% aluminum and a matrix selected from a material of the group consisting of copper, iron or nickel. The alloy is heated in an oxygen-rich atmosphere to form a material oxide-rich layer on a surface of the alloy. The alloy is then heated in a reducing atmosphere to reduce the material oxide-rich layer to form an aluminum oxide on the surface of the alloy and a material-rich layer on the aluminum oxide layer.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: March 10, 1987
    Assignee: Olin Corporation
    Inventors: Julius C. Fister, John F. Breedis
  • Copper stainproofing technique
    Patent number: 4647315
    Abstract: The present invention relates to a technique for improving the tarnish and oxidation resistance of copper and copper base alloy materials. The technique of the present invention involves immersing the copper or copper base alloy material in a dilute aqueous chromic acid-phosphoric acid solution. After emerging from the chromic acid-phosphoric acid solution, the copper or copper base alloy material is preferably rinsed with a dilute aqueous caustic solution and dried. Copper and copper base alloy materials treated in accordance with the present invention have particular utility in printed circuit applications.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: March 3, 1987
    Assignee: Olin Corporation
    Inventors: Arvind Parthasarathi, Ned W. Polan
  • Metallurgical structure control of electrodeposits using ultrasonic agitation
    Patent number: 4647345
    Abstract: A system for producing continuous lengths of electroformed metal foil or strip having enhanced ductility and a moderately refined grain structure is described. The system includes an anode and a cathode having a moving plating surface at least partially immersed within an electrolytic solution. To obtain the aforementioned improvements in foil or strip properties, the electrolytic solution is sonically agitated in the vicinity of the moving plating surface. Preferably, one or more ultrasonic generators are used to agitate the electrolyte. The generators may be mounted in a variety of locations including within the electrolyte flow path, within one of the anode and the cathode, or in contact with a surface of either the anode or the cathode.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: March 3, 1987
    Assignee: Olin Corporation
    Inventor: Ned W. Polan
  • Swimming pool chemical dispenser
    Patent number: 4643881
    Abstract: A pool chemical dispenser is provided that comprises a rotatably adjustable top, a container and a ballast disk cooperative with the top such that the specific gravity of the material of the top and the container is less than 1.0 and the specific gravity of the material of the ballast disk is greater than 1.0 thereby permitting the dispenser to float off the bottom of the skimmer in which it is immersed in water when less than about 10% of the pool chemical remains in the container and invert, remaining on the top of the surface of the water to indicate the pool chemical is exhausted.
    Type: Grant
    Filed: December 11, 1984
    Date of Patent: February 17, 1987
    Assignee: Olin Corporation
    Inventors: Roy P. Alexander, J. Philip Faust, Alan H. Milford
  • Variable stroke, electronically controlled fuel injection control system
    Patent number: 4643155
    Abstract: A fuel injection control system for an internal combustion engine utilizes a fuel injection pump in which the pump cylinder is in fluid communication with the fuel injection nozzle and a piezoelectric actuated spill valve. A cam drive actuates the pump piston to achieve a constant velocity during the pumping cycle (constant velocity relative to degrees of rotation of the engine crankshaft). An index wheel connected to either the engine crankshaft or the pump camshaft is used in conjunction with an initial position detector, angular position detector and a pump control unit to close and open the spill valve at predetermine positions of the pump piston during the pumping cycle. The pump control unit includes a computer connected to various engine parameter transducers to adjust the closing and opening of the spill valve to achieve a desired fuel injection volume.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: February 17, 1987
    Assignee: Olin Corporation
    Inventor: Cormac G. O'Neill
  • Alpha copper base alloy adapted to be formed as a semi-solid metal slurry
    Patent number: 4642146
    Abstract: A copper base alloy capable of forming a microstructure comprising a plurality of discrete particles in a surrounding metal matrix having a lower melting point than the particles. The alloy consists essentially of from about 3% to about 6% nickel, from about 2% to about 4.25% aluminum, from about 0.25% to about 1.2% silicon, from about 5% to about 15% zinc, up to about 5% iron and the balance essentially copper. When iron is included in an amount from about 3% to about 5% and zinc is restricted to a range of from about 8% to about 10%, the alloy is capable of forming the desired structure in the as-cast condition using a process which does not include stirring during casting.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: February 10, 1987
    Assignee: Olin Corporation
    Inventors: Sankaranarayanan Ashok, John F. Breedis
  • Snow ski display box
    Patent number: D288534
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: March 3, 1987
    Assignee: Olin Corporation
    Inventors: Paul J. Angelico, Richard N. Crumb, John R. Szeklicki