Patents Represented by Attorney Richard C. Stewart
  • Patent number: 4710545
    Abstract: Polymer-bound alkyl diarylphosphinite catalyst compositions having the formula I: ##STR1## wherein the trivalent phosphorus is substituted by one alkoxy group and one aryl group and wherein the third bond of phosphorus is a P-C bond to a pendant aryl groups of the polymer matrix and wherein .circle.p --C.sub.6 H.sub.4 -- is a polymer matrix containing aromatic groups such as polystyrene cross-linked with divinylbenzene and wherein at least 1% of pendant aryl groups of the polymer matrix are bound to phosphorus and wherein Ar is substituted by electron-donating groups such as alkyl, alkoxy, and N,N-dialkylamino, are disclosed. Polymer-bound aryl dialkyl phosphonites having the formula II, .circle.p --C.sub.6 H.sub.4 --P(OR).sub.2 and polymer-bound diarylphosphinous chlorides having the formula .circle.p --C.sub.6 H.sub.4 --P--(Ar')--Cl are also disclosed. Processes for making the polymer-bound phosphinites, phosphonites and phosphinous chlorides are also disclosed.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: December 1, 1987
    Assignee: Allied Corporation
    Inventors: William J. Boyle, Jr., Frank Mares, Andrea M. Corbo
  • Patent number: 4709101
    Abstract: An improved process for the production of methyl ethers of the type in which methanol is reacted with a branched monoolefin in the presence of a catalytically effective amount of one or more acid catalyst, said improvements comprising carrying out said reaction in one or two steps in the presence of one or more liquid organic compounds having one or more hydroxy substituents which functions as a carrier for the branched monoolefins. The hydroxy compound also inhibits the polymerization of the branched monoolefins.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: November 24, 1987
    Assignee: Allied Corporation
    Inventors: Divakaran Masilamani, George S. Hammond, Andiappan K. S. Murthy
  • Patent number: 4709122
    Abstract: This invention relates to a new and improved hermetically sealed container for semiconductor and other electronic devices, to a novel sealing cover for use in fabricating the above-referenced hermetically sealed container, and to novel processes for manufacturing said container and cover wherein the cover is plated with a nickel/indium alloy in which the weight percent indium in said alloy is less than about 10 weight percent.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: November 24, 1987
    Assignee: Allied Corporation
    Inventor: George J. Samuels
  • Patent number: 4707294
    Abstract: Solid hydroxylammonium sulfate is reacted with an alcohol solution of an alkali metal hydroxide or alkoxide to produce an alcoholic hydroxylamine liquid phase and a sulfate-containing solid phase. The liquid phase may be used for further reactions such as oxidations, hydroxamic acid production or neutralization to other hydroxylammonium salts. The different bases behave differently with regard to suitable and preferable solvents and temperatures.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: November 17, 1987
    Assignee: Allied Corporation
    Inventors: Chempolil T. Mathew, Harry E. Ulmer
  • Patent number: 4705904
    Abstract: A vapor phase synthesis of hexafluoroisobutylene, which comprises contacting in the vapor phase in a catalyst zone, B, of a reactor hexafluoropropylene oxide with a fluorinated catalyst such as fluorinated silica-alumina at a temperature of about 400.degree.-600.degree. C. for a residence time sufficient to form a vapor stream comprising hexafluoroacetone which is thereafter directly contacted in a heating zone of the reactor with a vapor stream comprising a keytone-generating compound such as acetic anhydride at a temperature of about 500.degree.-700.degree. C. for a residence time sufficient to form a stream comprising hexafluoroisobutylene, substantially-free of perfluoroisobutylene and recovering the hexafluoroisobutylene product is disclosed.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: November 10, 1987
    Assignee: Allied Corporation
    Inventors: John H. Bonfield, Harry E. Ulmer
  • Patent number: 4704480
    Abstract: A novel process is described for the production of aliphatic ketones and an optional consequetive production of the corresponding carbinols. The starting reactants comprise ketones or aldehydes or compounds capable of converting to these in situ, such as alcohols. The reaction takes place in the presence of hydrogen in a selective temperature range, utilizing a catalyst comprising copper oxide.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: November 3, 1987
    Assignee: Allied Corporation
    Inventors: Fred J. Gefri, Divakaran Masilamani, Andiappan K. S. Murthy
  • Patent number: 4696693
    Abstract: The invention relates to novel urease inhibited fertilizer compositions containing urea and a urease inhibiting amount of one or more diaminophosphinyl compounds having oxidized sulfur functions, and methods and composition for inhibiting the activity of urease through use of such compounds.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: September 29, 1987
    Assignee: Allied Corporation
    Inventors: Michael D. Swerdloff, Milorad M. Rogic, Larry L. Hendrickson
  • Patent number: 4695521
    Abstract: This invention relates to a novel anode for use in batteries, and to batteries containing the anode, which anode comprises of an electronically conductive n-doped conjugated backbone polymer having finely divided elemental alkali metal particles dispersed therein.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: September 22, 1987
    Assignee: Allied Corporation
    Inventors: Lawrence W. Shacklette, James E. Toth, Ronald L. Elsenbaumer
  • Patent number: 4686015
    Abstract: An improved method of manufacturing printed circuit boards of the type in which a metal clad substrate is covered with a photoresist, the photoresist is masked with a predetermined circuit image, the photoresist is exposed and the exposed photoresist is removed to provide a circuit image on the surface of the metal, the circuit image is electroplated with a metallic etch resist and the remaining photoresist and exposed metal cladding is removed to provide a board having a metal circuit covered by a metallic etch resist, the improvement comprising a metallic etch resist composed of a nickel/indium alloy containing from about 0.1 to about 10 weight percent indium based on the total weight of the alloy.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: August 11, 1987
    Assignee: Allied Corporation
    Inventors: George J. Samuels, Joseph M. Garman
  • Patent number: 4681792
    Abstract: The present invention provides improved, flexible articles of manufacture comprising a plurality of first flexible layers arranged in a first portion of said article, each of said first layers consisting essentially of fibers, the fibers of each of said flat layers comprising fibers having a tensile modulus of at least about 300 g/denier and a tenacity of at least about 15 g/denier and a plurality of second flexible layers arranged in a second portion of said article, each of said second flexible layers comprising fibers, the resistance to displacement of fibers in each of said second flexible layers being greater than the resistance to displacement of fibers in each of said first flexible layers.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: July 21, 1987
    Assignee: Allied Corporation
    Inventors: Gary A. Harpell, Igor Palley, Dusan C. Prevorsek
  • Patent number: 4675097
    Abstract: A process for converting heavy hydrocarbon into light hydrocarbon which comprises contacting heavy hydrocarbon having an API gravity at 25.degree. C. of less than about 20, such as Boscan heavy crude oil and tar sand bitumen, with a liquid comprising water, and carbon monoxide in the presence of an externally added catalyst comprising a mixture of sulfur and at least one of ferric oxide, ferric sulfide, ferrous sulfide and pyrite a residue and a phase comprising light hydrocarbon, gas and water; separating the residue and said phase; and recovering from said phase light hydrocarbon having an API gravity at 25.degree. C. of greater than about 20, and having a hydrogen to carbon mole ratio greater than that of the heavy hydrocarbon feedstock.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: June 23, 1987
    Assignee: Allied Corporation
    Inventors: Kundanbhai M. Patel, Alex Y. Bekker, Andiappan K. S. Murthy, Fredrick J. Gefri
  • Patent number: 4670286
    Abstract: A sterile shaped prosthetic device, suitable for insertion into a mammalian body, is at least partly composed of a bioresorbable material that is digestible by macrophages, its surface properties favor the attachment and adhesion of fibroblast cells capable of producing collagen for organized connective tissues, and the material itself or its degradation products can induce in vivo the formation of new capillary vessels (termed a "vasotropic" effect herein). Preferred prosthetic devices have through passages, the interspatial dimensions which are sufficient to permit several layers of mammalian cells to form within each passage. The invading fibroblast cells commence formation of collagen leading to connective tissue while macrophages and extracellular enzymes degrade the material, and newly formed capillary vessels penetrate the prosthesis and provide blood containing oxygen and nutrients which further the formation of organized tissue around as well as within the prosthetic device.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: June 2, 1987
    Assignee: Allied Corporation
    Inventors: Emery Nyilas, Tin-Ho Chiu
  • Patent number: 4668596
    Abstract: This invention relates to a novel anode for use in batteries, and to batteries containing the anode, which anode comprises a mixture of a conjugated backbone polymer and another electroactive material selected from the group consisting of metals which alloy with alkali metals and alkali metal cation inserting materials as for example transition metal chalcogenides.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: May 26, 1987
    Assignee: Allied Corporation
    Inventors: Lawrence W. Shacklette, Taiguang R. Jow, James E. Toth, MacRae Maxfield
  • Patent number: 4661615
    Abstract: Selective conversion of acrylonitrile into 1,4-dicyano-1-butene by contacting a liquid phase comprising acrylonitrile with an effective amount of a polymer-bound alkyl diarylphosphinite catalyst having the formula I: ##STR1## wherein the trivalent phosphorus is substituted by one alkoxy group and one aryl group and wherein the third bond of phosphorus is a P--C bond to a pendant aryl group of the polymer matrix, such as polystyrene cross-linked with divinylbenzene is disclosed. Treatment of the liquid phase, prior to contacting same with the polymer-bound catalyst, with a drying agent comprising a polymer-bound dialkyl arylphosphonite and regeneration of the drying agent are also disclosed.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: April 28, 1987
    Assignee: Allied Corporation
    Inventors: William J. Boyle, Jr., Frank Mares, Andrea M. Wallo
  • Patent number: 4661383
    Abstract: A novel method for grafting polymers to polytetrafluoroethylene (PTFE) and composites grafted according to this method are described. PTFE at a surface of a substrate is reduced to polyacetylene (PA) and then doped with a suitable dopant. The doped PA/PTFE substrate is then contacted with a polymerizable monomer precursor capable of polymerizing with doped PA, to form the polymer of said precursor chemically bonded to the surface of the PA/PTFE substrate. A grafted composite with layers of varying thickness may be formed by further contacting the substrate bonded to polymer with preformed polymer of a similar cohesive energy density.
    Type: Grant
    Filed: May 4, 1986
    Date of Patent: April 28, 1987
    Assignee: Allied Corporation
    Inventors: Ronald L. Elsenbaumer, Dawn M. Ivory, Zafar Iqbal, R. Henry Baughman
  • Patent number: 4650839
    Abstract: Modified phenolic resins and cured resins prepared therefrom.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: March 17, 1987
    Assignee: Allied Corporation
    Inventors: Sajal Das, Dusan C. Prevorsek
  • Patent number: 4650838
    Abstract: Modified phenolic resins and cured resins prepared therefrom.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: March 17, 1987
    Assignee: Allied Corporation
    Inventors: Sajal Das, Dusan C. Prevorsek
  • Patent number: 4647651
    Abstract: A novel process is disclosed for producing fluorinated pyromellitate surfactants. The process comprises two primary steps. The first step involves reacting pyromellitic dianhydride with fluorinated alcohol at a mole ratio of about two moles of fluorinated alcohol per mole of pyromellitic dianhydride, thereby producing a pyromellitate having two fluorinated esters moieties and two carboxylic acid moieties. Thereafter, the fluorinated pyromellitate with carboxylic acid moieties is reacted with an oxirane compound in the presence of trimellitic anhydride to produce fluorinated pyromellitate mixtures having a reduced percentage of fluorine.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: March 3, 1987
    Assignee: Allied Corporation
    Inventor: Bryce C. Oxenrider
  • Patent number: 4647686
    Abstract: This invention relates to a process for preparing keto-cyano alkane compounds by treating the corresponding alpha substituted cycloalkanone compound with oxygen and ammonia in the presence of a transition metal catalyst.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: March 3, 1987
    Assignee: Allied Corporation
    Inventors: Divakaran Masilamani, Edward H. Manahan
  • Patent number: 4640006
    Abstract: Conjugated backbone polymers (e.g., polyacetylene), especially formed into a battery electrode, are contacted with a compound MR where M is an alkali metal and R is alkyl of 1-12 carbons, phenyl or alkylphenyl of 7-12 carbons. The method is particularly suited to treatment of battery electrodes to avoid a high initial internal resistance.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: February 3, 1987
    Assignee: Allied Corporation
    Inventors: Ronald L. Elsenbaumer, Granville G. Miller, James E. Toth