Patents Represented by Attorney Jay P. Friedenson

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  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally methanol or ethanol
    Patent number: 5137651
    Abstract: Azeotrope-like compositions comprising 1,1,-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally ethanol or methanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: August 11, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Leonard M. Stachura, Ellen L. Swan, Peter B. Logsdon, Rajat S. Basu
  • Additives which stabilize hydrohalocarbon blowing agent in polyurethane and polyisocyanurate foam formulations during polymerization
    Patent number: 5137929
    Abstract: The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of additives which decrease the formation of haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, catalyst, surfactant, and at least one additive wherein the additive is capable of decreasing the amount of decomposition of said dehydrohalocarbon blowing agent to haloalkenes during polymerization of the polyisocyanate and the polyol.Depending upon the polyol and polyisocyanate used and the quantity of polyisocyanate used, the compositions may be used in pour-in-place molded foams; rigid urethane spray foams; rigid high and low density foams for slabstock, froth foams, and molded foams; rigid laminated boardstock; or specialty foams.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: August 11, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Timothy R. Demmin, Richard E. Eibeck, Gary M. Knopeck, Robert C. Parker, Donna M. Ruszaj, Stephen F. Yates, George D. Green, Keith A. Horn, Willis Hammond, Raymond H. P. Thomas
  • Method of preparing foam using a partially fluorinated alkane having a tertiary structure as a blowing agent
    Patent number: 5130345
    Abstract: A method for preparing polyurethane and polyisocyanurate foams which comprises reacting and foaming a mixture of ingredients which will react to form the polyurethane or polyisocyanurate foams in the presence of a blowing agent comprising a partially fluorinated alkane having four or five carbon atoms and a tertiary structure. The method is advantageous because partially fluorinated alkanes having a tertiary structure have zero ozone depletion potentials, are nonflammable, and have higher solvency toward polyols.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: July 14, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Chien C. Li, Bernard Sukornick
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms
    Patent number: 5124064
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of dichloropentafluoropropane and an alkanol having 1-4 carbon atoms
    Patent number: 5124065
    Abstract: Stable azeotrope-like compositions consisting essentially of dichloropentafluoropropane and an alkanol having 1-4 carbon atoms which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, David P. Wilson, Dennis M. Lavery, Richard M. Hollister, Richard E. Eibeck, Michael Vanderpuy, Rajat Basu, Ellen L. Swan
  • Dichlorotrifluoroethane stabilized to minimize hydrolysis thereof
    Patent number: 5124503
    Abstract: The present invention provides stabilized compositions comprising dichlorotrifluoroethane and effective stabilizing amounts of alkanol having 4 or 5 carbon atoms, nitroalkane having 1 to 3 carbon atoms, and a third component of 1,2-epoxyalkane having 2 to 7 carbon atoms or phosphite ester. Stabilized dichlorotrifluoroethane is useful in a variety of vapor degreasing, cold cleaning, and solvent cleaning applications including defluxing.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Chien C. Li, Kane D. Cook, Alfred A. Riederer
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms
    Patent number: 5124063
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms
    Patent number: 5122294
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: June 16, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms
    Patent number: 5120461
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 9, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Method of cleaning using partially fluorinated alkenes having a tertiary structure as solvent
    Patent number: 5118360
    Abstract: Novel partially fluorinated alkenes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF.sub.3, CHF.sub.2, CH.sub.2 F, and CH.sub.3 CF.sub.2, and R' is an alkenyl or fluoroalkenyl group having 1 to 6 carbon atoms have utility as solvents in a variety of industrial cleaning applications including cold cleaning, dry cleaning, and defluxing of printed circuit boards.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: June 2, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Chien C. Li, Kane D. Cook, Rajat S. Basu
  • Method of cleaning using partially fluorinated alkanes having a tertiary structure as solvent
    Patent number: 5118359
    Abstract: Novel partially fluorinated alkanes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF.sub.3, CHF.sub.2, CH.sub.2 F, and CH.sub.3 CF.sub.2, and R' is an alkyl or fluoroalkyl group having 1 to 6 carbon atoms with the proviso that when each R is CF.sub.3, R' is not CF.sub.3 (CF.sub.2).sub.2 --, CF.sub.3 CF.sub.2 --, or CF.sub.3 have utility as solvents in a variety of industrial cleaning applications including cold cleaning, dry cleaning, and defluxing of printed circuit boards.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: June 2, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Chien C. Li, Bernard Sukornick
  • Azeotrope-like compositions of dichloropentafluoropropane and a hydrocarbon containing six carbon atoms
    Patent number: 5118438
    Abstract: Stable azeotrope-like compositions consisting essentially of dichloropentafluoropropane and a hydrocarbon containing six carbon atoms which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 2, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, David P. Wilson, Dennis M. Lavery, Richard M. Hollister, Richard E. Eibeck, Michael Vanderpuy
  • Azeotrope-like compositions of dichloropentafluoropropane, ethanol and a hydrocarbon containing six carbon atoms
    Patent number: 5118437
    Abstract: Novel azeotrope-like compositions comprising dichloropentafluoropropane, ethanol and a hydrocarbon containing six carbon atoms which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 2, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, David P. Wilson, Dennis M. Lavery, Richard M. Hollister
  • Azeotrope-like compositions of dichloropentafluoropropane and 1,2-dichloroethylene
    Patent number: 5116526
    Abstract: Azeotrope-like compositions comprising dichloropentafluoropropane and 1,2-dichloroethylene are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: May 26, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, Richard E. Eibeck, Michael Van Der Puy, Richard M. Hollister, Dennis M. Lavery, David P. Wilson
  • Lubricants useful with 1,1-dichloro-2,2,2-trifluoroethane
    Patent number: 5108632
    Abstract: The present invention provides a composition for use in compression refrigeration and air-conditioning comprising: (a) 1,1-dichloro-2,2,2-trifluoroethane; and (b) a sufficient amount to provide lubrication of a lubricant therefor wherein said lubricant is an aliphatic non-hydrogen containing compound, an aliphatic compound having greater than about 80 percent non-hydrogen containing atoms, or an aliphatic hydrogen-containing compound having greater than about 80 percent exterior primary hydrogens, has an viscosity of about 5 to about 150 centistokes at 37.degree. C., and is miscible in combination with said 1,1-dichloro-2,2,2-trifluroethane in the range of about 0.degree. C. to at least +20.degree. C. The compositions may further comprise an effective amount of stabilizer.The present composition is useful in compression refrigeration and air-conditioning equipment.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: April 28, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Raymond H. P. Thomas, Ruth H. Chen, Hang T. Pham, David P. Wilson
  • Azeotrope-like compositions of dichloropentafluoropropane, methanol and a hydrocarbon containing six carbon atoms
    Patent number: 5106526
    Abstract: Novel azeotrope-like compositions comprising dichloropentafluoropropane, methanol, and a hydrocarbon containing six carbon atoms which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: April 21, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, David P. Wilson, Dennis M. Lavery, Richard M. Hollister
  • Azeotrope-like compositions of dichloropentafluoropropane, 2-propanol and a hydrocarbon containing six carbon atoms
    Patent number: 5104565
    Abstract: Novel azeotrope-like compositions comprising dichloropentafluoropropane, 2-propanol and a hydrocarbon containing six carbon atoms which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: April 14, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Hillel Magid, David P. Wilson, Richard M. Hollister, Dennis M. Lavery
  • Process for removing vinylidene chloride and other unsaturated compounds from 1,1-dichloro-1-fluoroethane by hydrogenation
    Patent number: 5105035
    Abstract: Vinylidene chloride and other unsaturated impurities are removed from HCFC-141b by reaction with hydrogen over a catalyst such as palladium on alumina.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: April 14, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Li Wang, Stephen F. Yates, Russell W. Johnson
  • Polyoxyalkylene glycol refrigeration lubricants having pendant, non-terminal perfluoroalkyl groups
    Patent number: 5100569
    Abstract: The present invention provides a composition for use in refrigeration and air-conditioning comprising: (a) at least one refrigerant selected from the group consisting of hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, and chlorofluorocarbon; and (b) a sufficient amount to provide lubrication of at least one polyoxyalkylene glycol. The polyoxyalkylene glycol has at least one pendant non-terminal perfluorinated alkyl group on its hydrocarbon polymer backbone. The polyoxyalkylene glycol is terminated with a group selected from the group consisting of hydrogen, alkyl, and fluoroalkyl. The polyoxyalkylene glycol has a molecular weight of about 300 to about 4,000 and a viscosity of about 5 to about 300 centistokes at 37.degree. C. The polyoxyalkylene glycol is miscible in combination with the refrigerant in the range between about -40.degree. C. and at least about +20.degree. C.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: March 31, 1992
    Assignee: Allied-Signal Inc.
    Inventors: David Nalewajek, Richard E. Eibeck, Raymond H. Thomas
  • Process for converting hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can then be rendered nonhazardous
    Patent number: 5089241
    Abstract: The present invention provides a process for the conversion of hazardous hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can be rendered nonhazardous. In particular, the hexafluoroarsenic acid or salt is converted to arsenic acid or salt which can be converted to a water insoluble salt. Known insolubilization and stabilization technology then renders the material nonhazardous.The present process involves converting hexafluoroarsenic acid or salt thereof contained in an aqueous mixture to arsenic acid or salt thereof.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: February 18, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Robert A. Smith, Douglas G. Frick, Charles L. Redmon, Somanahalli N. Subbanna