Patents Examined by John A. Sopp
  • Patent number: 4670596
    Abstract: Novel alkyl-dinitrodiphenylamine compounds are useful in controlling insects and arachnids. These compounds are useful especially in the control of citrus rust mite.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: June 2, 1987
    Assignee: Eli Lilly and Company
    Inventors: Barry A. Dreikorn, Kenneth E. Kramer
  • Patent number: 4670597
    Abstract: (Hydrocarbylthio)aromatic amines are prepared by reacting an aromatic monoamine, such as an aminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of hydrogen iodide, ammonium iodide, or cuprous iodide.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: June 2, 1987
    Assignee: Ethyl Corporation
    Inventors: Paul F. Ranken, Robert L. Davis
  • Patent number: 4670598
    Abstract: (Hydrocarbylthio)aromatic polyamines are prepared by reacting an aromatic polyamine, such as a diaminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of an iodide or bromide of a metal other than an alkali metal as a catalyst.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: June 2, 1987
    Assignee: Ethyl Corporation
    Inventor: Robert L. Davis
  • Patent number: 4663483
    Abstract: The synthesis and characterization of several polyenamine ketones are discussed wherein conjugated diacetylenic diketones and aromatic diamines are used as a route to the formation of high molecular weight polyenamine ketones which exhibit good mechanical properties and can be cast into creasible films. Typical polymerization conditions involved the reaction of stoichiometric amounts of 1,4- or 1,3-PPPO and a diamine at 60.degree.-130.degree. C. in m-cresol at (w/w) solids content of 8-26% for a specified period of time under a nitrogen atmosphere. Novel polyenamine ketones were prepared with inherent viscosities as high as 1.99 dl/g and tough, clear amber films with tensile strengths of 12,400 psi and tensile moduli of 397,000 psi were cast from solutions of the polymers in chloroform. The polymers exhibited T.sub.g s as high as 235.degree. C. and weight losses of 14% after aging at 232.degree. C. in circulating air for sixty hours.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: May 5, 1987
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. Hergenrother, Robert G. Bass, Mark S. Sinsky, John W. Connell
  • Patent number: 4661635
    Abstract: Acetylenes of the formula (I): ##STR1## wherein Y, m, R.sup.1, R.sup.2 q, Alk, R.sup.3, n and R.sup.4 are as defined herein and Ar.sup.1 and Ar.sup.2 are aromatic, including the salts and ammonium derivatives of formula (I), in treating angina, hypertension and cardiac arrhythmias. Pharmaceutical compositions, methods of use and synthesis and novel intermediates are also part of the invention.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: April 28, 1987
    Assignee: McNeilab, Inc.
    Inventor: John R. Carson
  • Patent number: 4661632
    Abstract: Halogenopropargylformamides of the formula ##STR1## in which R is hydrogen, alkyl, halogenoalkyl, cycloalkyl, halogenoalkyl, cycloalkyl, alkenyl, alkinyl, halogenoalkinyl, optionally substituted aralkyl and optionally substituted aryl, andHal is halogen.which possess fungicidal and bactericidal properties.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: April 28, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Oeckl, Paul Reinecke, Wilhelm Brandes, Karl-Heinz Kuck, Wilfried Paulus, Hermann Genth
  • Patent number: 4658062
    Abstract: Novel amine terminated polybutadiene compounds of the formula: ##STR1## wherein R is hydrogen, a straight or branched chain alkyl group containing from 1 to 10 carbon atoms or a substituted or unsubstituted aryl or aralkyl group containing one or more benzenoid rings which may be fused or joined by single valency bonds, and n is an integer of from about 5 to 1500 and a process for the preparation thereof.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: April 14, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Harry R. Hinney, Jamil Baghdadchi
  • Patent number: 4658065
    Abstract: A process for producing a polyether polyol with a content of 0.5 to 99.5% by weight of oxytetramethylene groups derived from tetrahydrofuran by copolymerizing tetrahydrofuran or a mixture of tetrahydrofuran and another cyclic ether copolymerizable therewith with a polyhydric alcohol having two or more hydroxyl groups per one molecule with the use of a heteropoly-acid and/or its salt as a catalyst, which comprises allowing 0.1 to 15 molecules of water per one heteropoly-anion to exist in the catalyst phase.The above-described polyether polyol is an industrially useful polymer which is a starting material for polyurethane to be used for spandex or a synthetic leather, etc.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: April 14, 1987
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Atsushi Aoshima, Shoichiro Tonomura, Hiroyuki Fukui, Hisaya Imai
  • Patent number: 4654443
    Abstract: Liquid distillation residue formed in the phosgenation of polyamines to form polyisocyanates are hydrolyzed to reform the polyamine. The process comprises forming an adduct of the distillation residue with additional polyamine and then hydrolyzing the resulting adduct to convert the adduct to said polyamine.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: March 31, 1987
    Assignee: The Dow Chemical Company
    Inventors: Maurice J. Marks, James R. Porter, Raymond A. Plepys
  • Patent number: 4650905
    Abstract: Diphenyl ethers of the formula ##STR1## where Z.sup.1 is hydrogen or halogen, Z.sup.2 is halogen, R.sup.1, R.sup.2 and R.sup.3 are each hydrogen or alkyl, R.sup.4 is alkyl or an araliphatic radical and n is a number from 1 to 8, are used for controlling undesirable plant growth.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: March 17, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Parg, Gerhard Hamprecht, Bruno Wuerzer
  • Patent number: 4650906
    Abstract: Ethyleneamines are recovered from an aqueous solution of carbonates of ethyleneamines by distilling an aqueous solution of carbonates of ethyleneamines including ethylenediamine, in which the molar ratio of the carbon dioxide component to the ethyleneamines including ethylenediamine is 0.01 to 0.5, whereby ethylenediamine is distilled out together with water. The aqueous solution to be distilled is advantageously prepared by heating an aqueous solution of carbonates of ethyleneamines including ethylenediamine to effect decarboxylation.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: March 17, 1987
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tsugio Murakami, Taizo Kawamoto
  • Patent number: 4650907
    Abstract: Novel nonaromatic fluoroallylamines are potent MAO inhibitors and at low dose selectively inhibit MAO-B. They are useful in the treatment of depression and coadministered with L-dopa, in the treatment of Parkinsonism.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: March 17, 1987
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Philippe Bey, Michael G. Palfreyman, Ian A. McDonald
  • Patent number: 4649222
    Abstract: 2-(Substituted amino)-2-[2-hydroxy-2-alkyl (or phenyl)ethyl]tricyclo[3.3.1.1.sup.3,7 ]decane hydrohalides are described such as 2-(2-hydroxyoctyl)-2-(methylamino)-tricyclo[3.3.1.1.sup.3,7 ]decane hydrochloride. The compounds possess anti-inflammatory, analgesic, anticonvulsant and/or anti-hypoxia activity.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: March 10, 1987
    Assignee: Pennwalt Corporation
    Inventors: Vassil S. Georgiev, George B. Mullen, Patricia A. Swift
  • Patent number: 4638090
    Abstract: Processes for the preparation of nitrosamine-free N,N-disubstituted nitroaromatic amines by degradation of their nitrosamine components formed during their preparation, and by stabilization of the products against renewed formation of nitrosamines, by treating the amines in liquid or molten form with a sulfonic acid, where necessary in the presence of inert organic solvents or diluents.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: January 20, 1987
    Assignee: Hoechst Aktiengesellschat
    Inventors: Rudolf Heinrich, Konrad Albrecht
  • Patent number: 4636568
    Abstract: There are disclosed certain aminoether compounds which are useful as intermediates in the preparation of photographic image dye providing materials. The aminoethers are represented either by the formula ##STR1## wherein R is hydrogen or an alcohol protecting group and R.sub.1 is hydrogen, alkyl or aralkyl such as benzyl or phenethyl; or the formula ##STR2## wherein R.sub.2 and R.sub.3 are alkyl having from 1 to 6 carbon atoms or R.sub.2 and R.sub.3 together represent the carbon atoms necessary to form, together with the oxygen atoms to which they are bonded and >CH, a five or six member saturated heterocyclic moiety which may include substituted rings and fused rings.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: January 13, 1987
    Assignee: Polaroid Corporation
    Inventors: Myron S. Simon, David P. Waller
  • Patent number: 4628119
    Abstract: A process for preparing hydrazine hydrohalogenide is disclosed.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: December 9, 1986
    Assignee: Mitsubishi Gas Chemical Co., Inc.
    Inventors: Takanari Nawata, Shuzabu Sakaguchi, Osamu Aoki
  • Patent number: 4625062
    Abstract: 4-Alkoxyanilines are obtained industrially advantageously by catalytically hydrogenating a nitrobenzene in the presence of a noble metal catalyst in a mixed solvent containing a lower aliphatic alcohol, sulfuric acid, and water or a lower aliphatic carboxylic acid or both to induce hydrogenation and a Bamberger-type rearrangement reaction. The mixed solvent contains at least 10 moles, preferably 30 to 60 moles, of the lower aliphatic alcohol per mole of the nitrobenzene, 1 to 10 moles, preferably 2 to 7 moles, of sulfuric acid per mole of the nitrobenzene, and 2 to 30% by weight, preferably 3 to 10% by weight, of water, the lower aliphatic carboxylic acid or both.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: November 25, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Teruyuki Nagata, Akihiro Tamaki, Hiroki Ohnishi, Hideki Mizuta
  • Patent number: 4621160
    Abstract: A process for the chlorination of aromatic derivatives. The aromatic derivative is reacted with chlorine gas in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: November 4, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Michel Desbois, Camille Disdier
  • Patent number: 4618712
    Abstract: N-Cyanocarboxlic acid amide derivatives which contain two or three ##STR1## groupings in the molecule are obtained by reacting 1 mol of a dicyanodiamine with 2 mols of a carboxylic acid anhydride or 1 mol of a dicyandiamine salt with 2 mols of a carboxylic acid halide or 1 mol of a dihalogeno compound with 2 mols of an N-cyanocarboxylic acid amide salt, or by reacting 1 mol of a carboxylic acid dichloride or trichloride with 2 or, respectively, 3 mols of a cyanamide or 1 mol of a carboxylic acid dicyandiamide or tricyantriamide salt with 2 or 3 mols of an alkylating agent.The N-cyanocarboxylic acid amide derivatives according to the invention are useful hardeners for epoxide resins.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: October 21, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Friedrich Stockinger, Friedrich Lohse, Roland Moser
  • Patent number: 4617418
    Abstract: This invention pertains to an improved process for preparing noncyclic polyalkylene polyamine compounds in high selectivity by reacting ammonia, an alkanolamine and an alkylene amine in the presence of an acidic catalyst. The improvement resides in effecting the reaction under fixed bed catalytic conditions and maintaining the reaction conditions such that a vapor phase condition exists for the reaction mixture comprising both reactants and products. To accomplish the formation of vapor phase conditions, sufficient ammonia is injected into the feedstream along with alkanolamine and alkylene amine so that the dew point temperature of the reaction product mix is below the reaction temperature at reaction pressure.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: October 14, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Michael E. Ford, Thomas A. Johnson