Patents Assigned to Olin
  • Web backing plate
    Patent number: 4855784
    Abstract: An apparatus for the electrostatic transfer of a developed image from a master to a receiving surface, there is provided a movable backing plate for the flexible carrier support for the master. The movable backing plate supports the transfer roller during development and ensures uniform distance between the master and the charging, developing and cleaning apparatus.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: August 8, 1989
    Assignee: Olin Hunt Specialty Products Inc.
    Inventor: David P. Bujese
  • Chip carrier
    Patent number: 4853491
    Abstract: A chip carrier and a process of assembling a chip carrier are disclosed. The carrier used for mounting a chip comprises a copper or copper base alloy component having a thin refractory oxide layer on a surface thereof. The surface and the oxide layer have an indentation formed therein for receiving the chip. A metallic circuit pattern for electrical connection to the chip is bonded to the oxide layer and insulated from the copper or copper base alloy by the refractory oxide layer. A seal is provided for enclosing the chip to the indentation. Another embodiment of the invention includes a circuit board structure comprising a circuit board device having a first coefficient of thermal expansion. A chip carrier is provided having a second coefficient thermal expansion of substantially the same value as the first coefficient of thermal expansion.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 1, 1989
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Process for concentrating aqueous solutions of hydroxylammonium salts
    Patent number: 4851125
    Abstract: Concentrated solutions of inorganic hydroxylammonium salts can safely be produced in a process for concentrating a dilute solution of an inorganic hydroxylammonium salt by contact with a membrane having a sorption side and a desorption side. The process comprises contacting the dilute solution with the sorption side of a membrane, which is substantially permeable to the solvent and substantially impermeable to the solute of the solution, to sorb the solvent and permit the solvent to flow through the membrane to the desorption side. Desorbing the solvent from the desorption side of the membrane.Highly concentrated aqueous solutions of hydroxylammonium salts which are heat sensitive are produced by the novel process of the invention which does not require directly heating the solution and is substantially free of hazards.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: July 25, 1989
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Robert T. Brooker
  • Printed circuit board
    Patent number: 4851615
    Abstract: A composite comprises a first metal or alloy component having a thin refractory oxide layer on a first surface thereof. A second metal or alloy component has a second thin refractory oxide on the first surface thereof. Means are provided having a closely matched coefficient of thermal expansion to the first and second metal or alloy components for bonding the first and second thin refractory oxide layers and for electrically insulating the first component from the second component whereby thermal stress between the metal or alloy components and the bonding means is substantially eliminated.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: July 25, 1989
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Direct electrochemical reduction of nitric acid to hydroxylamine nitrate
    Patent number: 4849073
    Abstract: A solution of hydroxylamine nitrate is electrolytically produced in an electrochemical cell having a cathode compartment, an anode compartment, and a separator between the cathode compartment and the anode compartment. The process comprises feeding a catholyte consisting essentially of an aqueous nitric acid solution to the cathode compartment. An anolyte solution is fed to the anode compartment. The catholyte is electrolyzed while maintaining the cathodic reaction temperature below about 50.degree. C. and a cathode half-cell potential at from about -0.5 to about -3 volts to produce a hydroxylamine nitrate solution which is recovered from the cathode compartment.The novel process of the present invention directly produces highly concentrated hydroxylamine nitrate solutions of high purity, i.e., suitable for use in a monopropellant.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: July 18, 1989
    Assignee: Olin Corporation
    Inventors: Ronald L. Dotson, Debra Y. Hernandez
  • Heat dissipating interconnect tape for use in tape automated bonding
    Patent number: 4849857
    Abstract: The present invention is directed to an interconnect tape for TAB and electronic packages made from the tape. A heat dissipating pad positioned over the electrically active face of an electronic device transfers heat from the device to the electronic package or to an external heatsink. The tape leads, the heat dissipating pad and the support members for the heat dissipating pad are all formed from the same electrically conductive strip.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: July 18, 1989
    Assignee: Olin Corporation
    Inventors: Sheldon H. Butt, Scott V. Voss
  • Block co-polymers useful as aqueous dispersants
    Patent number: 4847410
    Abstract: A process for preparing water-scale inhibitors and, more specifically, a neat process for preparing acrylic acid/ethylene glycol graft co-polymers and a method for their use as scale inhibitors.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: July 11, 1989
    Assignee: Olin Corporation
    Inventors: Donald L. Lickei, Michael L. Rosin, Ming Shen
  • Long-length continuous metal strip feed device
    Patent number: 4844360
    Abstract: The present invention relates to a device for supplying extra-long lengths of continuous metal strip material to metal processing and/or manufacturing equipment. The device has a central member adapted to receive a plurality of coils of strip material and free to rotate about its longitudinal axis and a plurality of retractable spacing elements for separating adjacent coils of material without interfering with the material feed operation. To insure a supply of material sufficient to enable operation of the equipment for long periods of time, the coils stacked on the central member are interconnected.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: July 4, 1989
    Assignee: Olin Corporation
    Inventors: Joseph Winter, Warren F. Smith, Jr.
  • Continuous process for producing granular calcium hypochlorite particles
    Patent number: 4842841
    Abstract: A continuous process for producing granular calcium hypochlorite particles comprises admixing lime and an aqueous liquid in a mixing zone to form a lime slurry. The lime slurry is fed into a crystallizing zone along with a calcium hypochlorite-containing liquid to produce a slurry of coarse dibasic calcium hypochlorite crystals and to elutriate a fines slurry from the crystallizing zone. The coarse dibasic calcium hypochlorite crystals are separated from a dibasic hypochlorite mother liquor and fed to a chlorinating zone. Reaction of the coarse dibasic calcium hypochlorite crystals with a chlorinating agent is conducted to produce a slurry of hemibasic calcium hypochlorite crystals. The slurry is fed to a separator to separate a hemibasic hypochlorite mother liquor from the hemibasic calcium hypochlorite crystals.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: June 27, 1989
    Assignee: Olin Corporation
    Inventor: Walter C. Saeman
  • Saboted, light armour penetrator round with improved powder mix
    Patent number: 4841863
    Abstract: This invention relates to a saboted, light armour penetrating small caliber ammunition round.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: June 27, 1989
    Assignee: Olin Corporation
    Inventor: Tom J. Bourgeois
  • Method for making multi-layer and pin grid arrays
    Patent number: 4840654
    Abstract: The process of constructing a multi-layer glass-ceramic circuit is disclosed. One or more glass-ceramic substrates is formed from a slurry or molten glass particles and ceramic which was formed at a temperature wherein the glass particles are molten and the ceramic particles are solid. After an electrical conductor pattern is applied on at least a surface of one of the glass-ceramic structures, at least two glass-ceramic structures are stacked on one another with the electrical conductor pattern therebetween and heated until the glass of each glass-ceramic structure bonds with adjacent glass so as to form the multi-layer structure.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: June 20, 1989
    Assignee: Olin Corporation
    Inventor: Michael J. Pryor
  • Adjustable valving rod
    Patent number: 4838458
    Abstract: In a plural component foam dispensing apparatus there is provided an adjustable valving rod which permits the length of the rod to be more accurately adjusted to compensate for varying tolerances and permit the rod to extend out the end of the mixing chamber in its extended position and to retract to the rear of the inlet orifices in its retracted position.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: June 13, 1989
    Assignee: Olin Corporation
    Inventor: C. Marshall Davidson
  • Process for producing an aqueous solution containing chlorine dioxide and chlorine
    Patent number: 4839152
    Abstract: A process for the production of an aqueous solution containing chlorine dioxide and chlorine, which comprises:(a) feeding to a reaction zone a first reactant stream comprising an aqueous solution containing an alkali metal chlorate and an alkali metal chloride;(b) feeding to said reaction zone a second reaction stream comprising an acid admixture of phosphoric acid and sulfuric acid, wherein the weight ratio of said phosphoric acid to said sulfuric acid as expressed as H.sub.3 PO.sub.4 :H.sub.2 SO.sub.4, is from about 1:16 to about 1:3;(c) mixing said first and second reactant streams in said reactant zone; said streams being fed into said reaction zone at rates sufficient to form a reaction product stream comprising an aqueous solution of chlorine dioxide and chlorine in said reaction zone; and(d) withdrawing the resulting aqueous reaction product stream from said reaction zone.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: June 13, 1989
    Assignee: Olin Corporation
    Inventors: Philip A. Vella, Manfred G. Noack
  • Semiconductor packaging
    Patent number: 4839716
    Abstract: A semiconductor package of the small outlined integrated circuit type is disclosed having an angled glass sealing surface. Another aspect of the invention relates to a shield disposed in a semiconductor package to prevent alpha radiation emitted from the sealing glass or other packaging components from impinging on the housed semiconductor device.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: June 13, 1989
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt
  • Sodium hydrosulfite electrolytic cell process control system
    Patent number: 4836903
    Abstract: A process control system for a filter press membrane electrochemical cell is provided that utilizes a microcomputer for multi-tasking functions to concurrently execute four programs to control the cell operation and self-correct out-of-tolerance conditions or shut cell operation down if not corrected within the allotted time period. A core process control program intercommunicates with a timer program, an alarm monitoring program and at least one sequence program in the process control system.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: June 6, 1989
    Assignee: Olin Corporation
    Inventor: David W. Cawlfield
  • Thermally stable light-sensitive compositions with o-quinone diazide and phenolic resin
    Patent number: 4837121
    Abstract: A phenolic resin composition comprising units of formula (I): ##STR1## wherein R.sub.1 is a halogen and R.sub.2 is a lower alkyl group having 1 to 4 carbon atoms and said units of formula (I) are made by condensing the corresponding halogen-substituted resorcinol of formula (A): ##STR2## wherein R.sub.1 is defined above, with the corresponding para-lower alkyl-substituted 2,6-bis(hydroxymethyl)-phenol of formula (B): ##STR3## wherein R.sub.2 is defined above, and wherein the mole ratio of A:B is from about 0.5:1 to 1.7:1. This phenolic resin may be mixed with photoactive compounds (e.g. 1,2-naphthoquinone diazide sensitizers ) to prepare a light-sensitive composition useful as a positive-working photoresist.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: June 6, 1989
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Andrew J. Blakeney, Alfred T. Jeffries, III, Thomas R. Sarubbi
  • Polymer/copper laminate and method for fabrication thereof
    Patent number: 4833022
    Abstract: Polymer/copper laminates and a method for their manufacture employing smooth, untreated, wrought-copper and characterized by cohesive and adhesive strength in the resulting laminates.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: May 23, 1989
    Assignee: Olin Corporation
    Inventors: William G. Bridges, Thomas A. Armer
  • Process for removing aluminum from concentrated alkali metal halide brines
    Patent number: 4830837
    Abstract: A process for purifying an alkali metal halide brine containing aluminum as an impurity which comprises adjusting the pH of the alkali metal halide brine to the range of from about 8.5 to about 9.5 and contacting the alkali metal halide brine with an ion exchange resin having a phosphonic acid group.Using the novel process of the present invention, high purity alkali metal halide brines may be produced for use in electrolytic membrane cells which have concentrations of aluminum reduced to a level which will not cause damage to a cation exchange membrane or affect the membranes ability to transport cations or water molecules.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: May 16, 1989
    Assignee: Olin Corporation
    Inventors: David D. Justice, David A. Helmstetter, Emily J. Reed, Tsujihiko Fukunaga
  • Aqueous developing solution and its use in developing positive-working photoresist composition
    Patent number: 4828965
    Abstract: An aqueous developing solution useful in developing positive-working photoresists comprising:______________________________________ A. Soluble Alkali Metal Phosphate 1.50-3.00% by weight B. Soluble Alkali Metal Silicate 1.00-2.00% by weight C. Mono (lower alkanol) amine 0.40-5.00% by weight D. Soluble Alkylene Glycol 0.25-3.00% by weight E. Lower Alkanol 0.05-1.00% by weight F.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: May 9, 1989
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Richard J. West, Stephen F. Marcotte, Jr., Faris A. Modawar
  • Low thermal expansivity and high thermal conductivity substrate
    Patent number: RE32942
    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: May 15, 1986
    Date of Patent: June 6, 1989
    Assignee: Olin Corporation
    Inventor: Sheldon H. Butt