Patents Represented by Attorney Thomas McDonnell
-
Patent number: 4238601Abstract: A bisorthodinitrile of the formula: ##STR1## wherein R' and R" are perfluorinated alkyls having from 1 to 4 carbon at, and the phenyl groups are attached at the para position. A polyphthalocyanine resin is prepared by heating one or more of these bisorthodinitriles at a temperature from about 260.degree. C. to about 295.degree. C. These resins are particularly useful in high-temperature structural composites used in high-temperature, moist or corrosive environments.Type: GrantFiled: June 25, 1979Date of Patent: December 9, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, James R. Griffith
-
Patent number: 4238464Abstract: Revitalization of air by circulation thereof through a quantity of a salt zirconium, titanium or boron and oxygen in the peroxide or higher positive valence state and by mixtures thereof with an alkali metal or alkaline earth hydroxide, oxide, peroxide, superoxide, or ozonide or mixture thereof.Type: GrantFiled: August 9, 1978Date of Patent: December 9, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventor: Paul R. Gustafson
-
Patent number: 4234712Abstract: Polyphthalocyanine resins are obtained by heating one or more bisorthodiniles of the general formula: ##STR1## wherein R represents ##STR2## at temperature at or above the melting point thereof. The resins are useful in high-temperature structural composites and adhesives.Type: GrantFiled: September 14, 1979Date of Patent: November 18, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, James R. Griffith
-
Patent number: 4226801Abstract: Terminated bis(3,4-dicyanophenoxy) alkanes, wherein the alkylene chain is om 2 to 30 carbon atoms in length, is prepared by the reaction of 4-nitrophthalonitrile with a terminated alkane diol at elevated temperatures. A polyphthalocyanine resin is obtained by heating the dicyanophenoxy alkanes neat or with a salt or metal at a temperature from about 180.degree. C. to about 245.degree. C. The polyphthalocyanine resin is useful as a high-temperature structural or composite material which is highly resistant to mechanical stresses and strains.Type: GrantFiled: June 25, 1979Date of Patent: October 7, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, James R. Griffith
-
Patent number: 4223123Abstract: Polyphthalocyanine resins are obtained by heating, at a temperature from ut 260.degree. C. to about 295.degree. C., one or more bisorthodinitriles of the general formula: ##STR1## wherein R' is an alkyl radical with 1 to 6 carbon atoms, R" is hydrogen or an alkyl radical with 1 to 6 carbon atoms, and the phenyl groups are attached at the meta or para position. These resins are particularly useful in high-temperature structural composites.Type: GrantFiled: May 29, 1979Date of Patent: September 16, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, James R. Griffith
-
Patent number: 4209458Abstract: A fluorinated phthalonitrile of the general formula: ##STR1## wherein R' is F or CF.sub.3, R is (CF.sub.2).sub.p, m is 1 or 2, n is 1 or , p is an integer from 3 to 30, x is 1, 2, or 3, y is 1, 2, or 3 and z is 0 or 1 is prepared by reacting 4-iodophthalonitrile with the appropriate diiodide in the presence of activated copper in a dipolar aprotic solvent. Heating this phthalonitrile to a temperature from about its melting point to about 285.degree. C. produces a polyphthalocyanine resin. If a salt or metal is added prior to the heating, a metal or salt-coordinated polyphthalocyanine is produced. Polyphthalocyanines are useful in coatings, laminates, filament windings, castings, and structural composites.Type: GrantFiled: April 4, 1979Date of Patent: June 24, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, James R. Griffith
-
Patent number: 4200669Abstract: A method and apparatus for spraying a surface which comprises: introducing into a laser beam, a powder with a vapor pressure from 10.sup.-2 to 10.sup.-1 atm. in excess of the ambient pressure at a temperature up to about 500.degree. C. above the melting point thereof and with a heat-absorption coefficient from 0.2 to 1; and passing the laser beam over said surface. Since the method and apparatus can coat or alloy or dope a surface, a wide variety of protective coatings can be fabricated.Type: GrantFiled: November 22, 1978Date of Patent: April 29, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert J. Schaefer, Jack D. Ayers
-
Patent number: 4195166Abstract: A polphthalocyanine with the structure formula: ##STR1## prepared by mixing SnCl.sub.2.2H.sub.2 O with N, N'-bis(3,4-dicyanophenyecane diamide of which the structural formula is: ##STR2## heating the mixture to a temperature from about 175.degree. C. to about 185.degree. C. for about 15 to 20 minutes to form a resin; and curing the resin at a temperature from about 190.degree. C. to about 230.degree. C. The polyphthalocyanine is useful as an adhesive, as a matrix for glass or carbon-fiber reinforced composites, and as structural material.Type: GrantFiled: October 23, 1978Date of Patent: March 25, 1980Assignee: The United State of America as represented by the Secretary of the NavyInventors: James R. Griffth, Jacques G. O'Rear
-
Patent number: 4176040Abstract: A method for converting coal to liquid hydrocarbons or oil-soluble solids mprises the steps of contacting said coal with oxygen for at least 15 minutes, at a temperature from about 90.degree. to about 225.degree. C., heating the oxidized coal to a temperature from about 250.degree. to about 450.degree. C., and maintaining the temperature for at least 15 minutes.Type: GrantFiled: May 8, 1978Date of Patent: November 27, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventor: Robert N. Hazlett
-
Patent number: 4175613Abstract: Storage of thermal energy in a ternary mixture of salts which comprises from 22.5 to 26.5 weight percent of sodium chloride, from 18.5 to 22.5 weight percent of potassium chloride and from 53.0 to 57.0 weight percent of magnesium chloride.Type: GrantFiled: June 30, 1978Date of Patent: November 27, 1979Inventor: Talbot A. Chubb
-
Patent number: 4172775Abstract: Mixtures of metals are separated by forming salts of the metals which exhibit photoredox activity with an anion selected to provide insoluble salts at one oxidation state and soluble salts at another oxidation state, forming a solution of these salts with a solvent selected to permit a difference in solubility of salts dissolved at different oxidation salts and to be nonreactive with the nonsoluble salts, irradiating the solution with light at a wavelength which changes the oxidation state of the metal ion most susceptive to a change in oxidation state, and separating the insoluble salt formed thereby from the solution.Type: GrantFiled: February 9, 1978Date of Patent: October 30, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventor: Terence Donohue
-
Patent number: 4165332Abstract: The formation of predominantly primary aliphatic perchlorates and trifluoethanesulfonates by reacting the corresponding silver salt with primary aliphatic halides in benzene at a temperature from about 5.degree. C. to about 50.degree. C. Primary aliphatic perchlorates and trifluoromethanesulfonates are excellent alkylating agents for amines, alcohols, and nitroalcohols.Type: GrantFiled: January 8, 1976Date of Patent: August 21, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles D. Beard, Kurt Baum
-
Patent number: 4160033Abstract: A method of controlling mosquitos by adsorbing onto the surface of a body of water suitable for breeding mosquitos a monomolcular or duplex film of an organic material which reduces the surface tension of the body of water to 30 dynes/cm or less.Type: GrantFiled: January 31, 1977Date of Patent: July 3, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: William D. Garrett, William R. Barger
-
Patent number: 4157358Abstract: A random fluorinated polymer of the general equation: ##STR1## wherein x is an integer from 1 to 4, y is an integer from 0 to 4, z is 1 more, R' is selected from the group consisting of the 1,3 and the 1,4 isomers of --OC(CF.sub.3).sub.2 .phi.C(CF.sub.3).sub.2 O--, R" is selected from the group consisting of the cis and trans isomers of --O(CF.sub.3).sub.2 CCH.sub.2 CH.dbd.CHC(CF.sub.3).sub.2 O--, and R is either R' or R"; and epoxy resins and urethane resins prepared therefrom.Type: GrantFiled: October 13, 1978Date of Patent: June 5, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Donald E. Field, James R. Griffith
-
Patent number: 4139439Abstract: A method of separating isotopes of hydrogen which comprises subjecting a ture of methane and isotopes of hydrogen in a methane to hydrogen mole ratio from about 1000:1 to about 1:10 to a glow electrical discharge from about 10.sup.-3 to about 50eV per hydrogen bond at a temperature from about 50.degree. K. to about 310.degree. K. and at a pressure from about 0.3 Torr to the pressure at which arcing occurs.Type: GrantFiled: May 31, 1978Date of Patent: February 13, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Thomas J. Manuccia, Christine E. Geosling
-
Patent number: 4136107Abstract: Compounds of the general formula: ##STR1## wherein R.sub.1 is a radical of an isomer of phthalaldehyde; R.sub.2 is a adical of an isomer of an aromatic dialdehyde selected from the class consisting of phthalaldehyde, naphthalene dialdehyde, phenanthrene dialdehyde, anthracene dialdehyde, biphenyl dialdehyde, terphenyl dialdehyde; and mixtures thereof and R.sub.3 is a radical of an isomer of an aromatic diamine selected from the class consisting of benzene diamine, naphthalene diamine, phenanthrene diamine anthracene diamine, biphenyl diamine, and terphenyl diamine, and the cyano-condensation resins thereof which are useful in preparing semiconductors.Type: GrantFiled: October 20, 1977Date of Patent: January 23, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: James R. Griffith, Jacques G. O'Rear
-
Patent number: 4133935Abstract: A waterproof electrode useful in metal-working is obtained by coating the ectrode with a polyolefin selected from the class consisting of polyethylene, polypropylene, polybutylene and mixtures thereof at a thickness from 0.25 cm to 0.80 cm by a method which comprises placing the electrode inside a polyolefinic heat-shrinkable tubing of a length sufficient to cover at least 0.6 cm of the bare metal of an electrode with a flux coating and sufficient to extend at least 0.8 cm beyond the electrode and with a diameter and a shrinkability sufficient to bring the polyolefin in contact with the bare metal of a flux-coated electrode.Type: GrantFiled: November 17, 1977Date of Patent: January 9, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventor: Thomas J. Dawson
-
Patent number: 4133862Abstract: Marine fungal growth is inhibited and/or eradicated in wood by contacting e wood with obtusastyrene whose formula is: ##STR1##Type: GrantFiled: June 6, 1977Date of Patent: January 9, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: John D. Bultman, Donald D. Ritchie, Leonard Jurd
-
Patent number: 4132681Abstract: A random fluorinated polymer of the general formula: ##STR1## wherein x is an integer from 1 to 4, y is an integer from 1 to 4, z is 1 more, R' is selected from the group consisting of the 1,3 and the 1,4 isomers of --OC(CF.sub.3).sub.2 .phi.C(CF.sub.3).sub.2 O--, R" is selected from the group consisting of the cis and trans isomers of --O(CF.sub.3).sub.2 CCH.sub.2 CH.dbd.CHC(CF.sub.3).sub.2 O--, and R is either R' or R"; and epoxy resins and urethane resins prepared therefrom.Type: GrantFiled: October 29, 1976Date of Patent: January 2, 1979Assignee: United States of America as represented by the Secretary of the NavyInventors: Donald E. Field, James R. Griffith
-
Patent number: 4132842Abstract: A silicon-phthalocyanine-siloxane polymer having the formula ##STR1## WHEREIN Pc is a phthalocyanine nucleus, Ph is a phenyl group, n is an integer from 1 to 8, and x is an average value up to 20, is prepared by a method including a reaction of a phthalocyanine-silicon-disilanol with a bis(ureido) dialkyl silane or bis(ureido) siloxane or by the reaction of a phthalocyanine-silicon-disilanol with a bis(dialkyl) amino) silane or a bis(dialkylamino) siloxane. These polymers are useful as strengthening agents for high-temperature resins, such as polyimides, poly(phthalocyanines) or epoxies and as coatings or dyes.Type: GrantFiled: February 23, 1978Date of Patent: January 2, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Kenneth J. Wynne, John B. Davison