Patents by Inventor Henry R. Nychka
Henry R. Nychka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 4377715Abstract: Octafluoropropane or perfluoropropane is produced by introducing fluorine into an elongated inner zone surrounded by a porous member which is substantially resistant to fluorine corrosion and introducing a three carbon compound which is propane, a partially fluorinated propane, propene, a partially fluorinated propene, hexafluoropropene or mixtures thereof outside the porous member. When the porous member is metal, a perfluorinated diluent is used. When the porous member is fused alumina, conventional diluents such as nitrogen, or even no diluent may be employed.Type: GrantFiled: December 26, 1979Date of Patent: March 22, 1983Assignee: Allied CorporationInventors: Henry R. Nychka, John B. Hino, Richard E. Eibeck, Martin A. Robinson
-
Patent number: 4155941Abstract: A haloethane is dechlorinated by reacting in the gaseous phase a haloethane selected from CCl.sub.2 FFCClF.sub.2, CClF.sub.2 CClF.sub.2 and CCl.sub.2 FCCl.sub.2 F with ethylene in the presence of a transition metal catalyst selected from iron, nickel, vanadium and chromium oxides, chlorides and fluorides and recovering a perhaloethylene and vinyl chloride. Perhaloethylenes are used as monomers for halogenated polymers. Vinyl chloride is also a widely used monomer.Type: GrantFiled: November 28, 1977Date of Patent: May 22, 1979Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Richard E. Eibeck
-
Patent number: 4105691Abstract: Chlorofluorinated carboxylic acids may be effectively produced by an oxychlorofluorination process by reacting a gaseous mixture of a starting material selected from a saturated aliphatic carboxy containing compound, a saturated aliphatic carboxylic acid halide and a saturated aliphatic aldehyde in which all atoms are selected from C, H and O, and corresponding hydrohalogenated compounds in which the halo atoms are selected from chloro and fluoro, or mixtures thereof, an oxygen-containing gas, a chlorinating agent selected from the group consisting of HCl and Cl.sub.2 and mixtures thereof, and HF, in the presence of a Deacon catalyst supported by a stable, inert metal salt carrier.Type: GrantFiled: December 22, 1975Date of Patent: August 8, 1978Assignee: Allied Chemical CorporationInventors: Richard F. Sweeney, James O. Peterson, Bernard Sukornick, Henry R. Nychka, Richard E. Eibeck, Morris B. Berenbaum
-
Patent number: 4088704Abstract: Highly chlorinated hydrocarbons having one to three carbons such as CCl.sub.4, C.sub.2 Cl.sub.6 and C.sub.3 Cl.sub.8 are reacted with HF in the presence of a fluorination catalyst such as gamma aluminum fluoride. The effluent is reacted with unhalogenated or underhalogenated hydrocarbons having 1 to 3 carbons, such as CH.sub.4, CH.sub.3 Cl, C.sub.2 H.sub.5 Cl, C.sub.2 H.sub.6, CH.sub.2 .dbd.CHCl and CFCl.dbd.CCl.sub.2, and O.sub.2 in the presence of an oxychlorination catalyst, such as cupric chloride with alkali halide or alkaline earth halide promoters on alpha aluminum fluoride. Fluorocarbons having 1 to 3 carbons such as CCl.sub.2 F.sub.2, C.sub.2 Cl.sub.3 F.sub.3 and C.sub.2 Cl.sub.2 F.sub.4 are separated from the effluent. Preferably, highly chlorinated materials are recycled onto the fluorination catalyst and underhalogenated materials are recycled onto the oxychlorination catalyst.Type: GrantFiled: January 21, 1977Date of Patent: May 9, 1978Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Richard E. Eibeck
-
Patent number: 4072726Abstract: Fluorinated esters of the formula C.sub.n H.sub.x F.sub.2n+1-x CO.sub.2 CH.sub.2 C.sub.m H.sub.y F.sub.2m+1-y such as CF.sub.3 CO.sub.2 CH.sub.2 CF.sub.3 are hydrogenated to fluorinated alcohols such as CF.sub.3 CH.sub.2 OH using a catalyst having between 50 and 100 percent, and preferably 75-95 percent CuO by weight. In the above formula n= 1 to 13, m= 1 to 13, x= 0 to 3 and y= 0 to 3. In the most preferred esters, n= m and x= y= 0. The catalyst may also contain 0-50 percent and preferably 5-25 percent by weight of a filler or binder such as a silicate salt. The reaction produces greater yields of alcohol and longer catalyst life than with chromite catalysts, and may proceed at substantially atmospheric pressures.Type: GrantFiled: January 21, 1977Date of Patent: February 7, 1978Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Richard E. Eibeck, Martin A. Robinson, Edward S. Jones
-
Patent number: 4060555Abstract: Chlorofluorinated aliphatic ketones may be effectively produced by an oxychlorofluorination process by reacting a gaseous mixture of a starting material selected from an aliphatic ketone and a halogenated aliphatic ketone in which the halogen atoms are selected from chlorine and fluorine, or mixtures thereof, an oxygen-containing gas, a chlorinating agent selected from the group consisting of HCl and Cl.sub.2 and mixtures thereof, and HF, in the presence of a Deacon catalyst supported by a stable, inert metal salt carrier.Type: GrantFiled: December 22, 1975Date of Patent: November 29, 1977Assignee: Allied Chemical CorporationInventors: James Oliver Peterson, Bernard Sukornick, Richard Francis Sweeney, Henry R. Nychka, Richard E. Eibeck, Morris B. Berenbaum
-
Patent number: 4052468Abstract: Chlorofluorinated cycloaliphatic hydrocarbons may be effectively produced by an oxychlorofluorination process by reacting a gaseous mixture of a starting material selected from a cycloaliphatic hydrocarbon and a cycloaliphatic hydrohalocarbon in which the halo atoms are selected from chloro and fluoro, or mixtures thereof, an oxygen-containing gas, a chlorinating agent selected from the group consisting of HCl and Cl.sub.2 and mixtures thereof, and HF, in the presence of a Deacon catalyst supported by a stable, inert metal salt carrier.Type: GrantFiled: December 22, 1975Date of Patent: October 4, 1977Assignee: Allied Chemical CorporationInventors: James Oliver Peterson, Bernard Sukornick, Richard Francis Sweeney, Henry R. Nychka, Richard E. Eibeck, Morris B. Berenbaum
-
Patent number: 4052470Abstract: Chlorofluorinated acyclic hydrocarbons may be produced produced by a commercially viable oxychlorofluorination process by reacting a gaseous mixture of a starting material selected from an acyclic hydrocarbon containing up to four carbon atoms and an acyclic hydrohalocarbon containing up to four carbon atoms in which the halo atoms are selected from chloro and fluoro, or mixtures thereof, an oxygen-containing gas, a chlorinating agent selected from the group consisting of HCl and Cl.sub.2 and mixtures thereof, and HF, in the presence of a Deacon catalyst supported by a stable, inert metal salt carrier.Type: GrantFiled: December 22, 1975Date of Patent: October 4, 1977Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Richard E. Eibeck, Morris B. Berenbaum
-
Patent number: 4042524Abstract: The invention comprises a novel compound having the chemical name 2-(t-butoxymethyl) tetrahydrofuran and a novel absorption pair comprising 2-(t-butoxymethyl) tetrahydrofuran as the solvent and a lower alkyl fluorocarbon as the solute. The invention further comprises a method of absorption heating and method of absorption refrigeration using the novel absorption pair and absorption heating and an absorption cooling apparatus using the novel absorption pair.Type: GrantFiled: April 10, 1975Date of Patent: August 16, 1977Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Richard E. Eibeck, Chien C. Li
-
Patent number: 4012453Abstract: Chlorofluorinated aromatic hydrocarbons may be effectively produced by an oxychlorofluorination process by reacting a gaseous mixture of a starting material selected from an aromatic hydrocarbon and an aromatic hydrohalocarbon in which the halo atoms are selected from chloro and fluoro, or mixtures thereof, an oxygen-containing gas, a chlorinating agent selected from the group consisting of HCl and Cl.sub.2 and mixtures thereof, and HF, in the presence of a Deacon catalyst supported by a stable, inert metal salt carrier.Type: GrantFiled: December 22, 1975Date of Patent: March 15, 1977Assignee: Allied Chemical CorporationInventors: Henry R. Nychka, Morris B. Berenbaum, Martin A. Robinson, Richard E. Eibeck