Patents Examined by Thomas A. Waltz
  • Patent number: 4351974
    Abstract: In the preparation of 3-bromo-4-fluorotoluene by reacting 4-fluorotoluene with bromine, the improvement which comprises effecting the bromination in glacial acetic acid in the presence of iodine and iron or an iron salt. As a result the proportion of 3-bromo-4-fluorotoluene relative to its 2-bromo-4-fluorotoluene isomer is markedly increased.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: September 28, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Baasner, Erich Klauke, Ernst Kysela
  • Patent number: 4351774
    Abstract: A process for the production of methoxyanthraquinones of high purity by reaction of nitroanthraquinones with methanol and alkali, in the presence of alkali-resistant nitrous acid inhibitors.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: September 28, 1982
    Assignee: Ciba-Geigy AG
    Inventors: Peter Baumgartner, Urs Karlen, Urs Keller
  • Patent number: 4350706
    Abstract: The invention relates to new urea and thiourea compounds as insecticides.The compounds, after having been processed to compositions, can successfully be used to control insects in a dosage from 10 to 5000 g of active substance per hectare.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: September 21, 1982
    Assignee: Duphar International Research B.V.
    Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
  • Patent number: 4348413
    Abstract: Compounds of the formula: ##STR1## wherein: Y is 2,6-dimethylphenyl, 2,5-dimethylphenyl, [5-bromo-2-methylphenyl], or 5-chloro-2-methylphenyl; andX is propyl, isopropyl, n-butyl, or isobutyl; or a non-toxic, pharmaceutically acceptable acid addition salt thereof; possess anti-arrhythmic activity.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: September 7, 1982
    Assignee: American Home Products Corporation
    Inventors: Theodore S. Sulkowski, James L. Bergey, Albert A. Mascitti
  • Patent number: 4347147
    Abstract: A method of preparing superbased magnesium sulfonates by dispersing MgO in the preformed low viscosity overbased magnesium sulfonates. The low viscosity overbased magnesium sulfonates is prepared by sulfonating an alkyl benzene with a material containing SO.sub.3, preferably oleum, and reacting the alkyl benzene sulfonate with magnesium oxide in the presence of a low viscosity diluent, such as No. 2 oil or LOPS (low odor paraffin solvent), together with water, alcohol, and CO.sub.2. The newness of the method lies in the steps of preferably positively utilizing oleum which contains a minor amount of sulfuric acid as a promoter and utilizing also a surfactant couple of a C.sub.12 -C.sub.18 fatty acid such as oleic acid and an ethanol amide such as a lauryl diethanol amide, which may be Witcamide 5138; where a ready made sulfonate is used, such as SA697 (Conoco), H.sub.2 SO.sub.4 is utilized. In certain instances the amide may be omitted with satisfactory results occurring by using the acid alone.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: August 31, 1982
    Assignee: Nalco Chemical Company
    Inventors: Ronald J. Allain, Dodd W. Fong
  • Patent number: 4347397
    Abstract: A novel process for the reduction of durene produced in a methanol to gasoline conversion process is disclosed wherein either the total effluent from said process or a bottoms fraction containing durene is contacted with an isomerization catalyst at elevated temperatures in order to convert said durene.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Francis G. Dwyer, Albin Huss, Jr.
  • Patent number: 4346233
    Abstract: This disclosure relates to a process for preparing long-chain hydrocarbon substituted ureas by reacting a long chain fatty acid N-chloramide in isopropanol and/or tertiary butanol with an aliphatic or araliphatic primary or secondary amine in the presence of an alkali or alkaline earth hydroxide at a temperature of from 20.degree. to 100.degree. C. The process of this disclosure is particularly useful in preparing long-chain hydrocarbon substituted ureas wherein one of the aliphatic hydrocarbon substituents contains one or more hydroxyl and/or carboxyl groups, as well as the salts of such substituted ureas.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: August 24, 1982
    Assignee: Akzona Incorporated
    Inventors: Hans G. Zengel, Manfred F. Bergfeld, Rainer Zielke
  • Patent number: 4342701
    Abstract: 95-99% pure 4,5-dinitro-1,8-dihydroxyanthraquinone which is essentially free from by-products is obtained by "direct nitration" of 1,8-dihydroxyanthraquinones or 1,8-dimethoxyanthraquinones if the concentrations of acid are chosen such that, when the nitration reaction and, if appropriate, the saponification reaction have ended, an 80-100% strength sulphuric acid is present, or such a sulphuric acid concentration is established by adding water, and the 4,5-dinitro-1,8-dihydroxyanthraquinone which crystallizes out is separated off.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: August 3, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Steinbeck, Gunter Gehrke
  • Patent number: 4342774
    Abstract: An N-acylcarnosine aluminum salt of the formula, ##STR1## wherein R represents a lower alkyl group having 1 to 6 carbon atoms, a phenyl group or a lower alkoxy group-substituted phenyl group, and n is an integer of 1 to 3 is effective for use as a digestive ulcer-remedying or anti-ulcer agent.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: August 3, 1982
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Susumu Okabe, Takashi Sonehara, Masaru Sato, Mitsuo Mazaki
  • Patent number: 4342838
    Abstract: This invention relates to new bimetallic cluster compounds of the formulaL.sub.2 M.sub.2 Ru.sub.6 C(CO).sub.16wherein L is RCN, R being C.sub.1 to C.sub.6 alkyl, C.sub.6 to C.sub.10 aralkyl or phenyl, and M is copper, silver or gold. These compounds are useful as homogeneous catalysts for converting synthesis gas to methanol.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: August 3, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Roy L. Pruett, John S. Bradley
  • Patent number: 4342700
    Abstract: An oxidation-reducing reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of the general formulas: ##STR1## wherein M stands for a sodium atom, a potassium atom or an ammonium group, and n is an integer of 1 or 2, or (b) a mixture of a salt of anthraquinone-2,7-disulfonic acid and one or more compounds shown by the general formula (I) and/or (II), as well as a process for preparing the compounds of the general formulas (I) and (II).
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: August 3, 1982
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Katsuya Sakai, Ryuichi Mita, Toshio Kato, Chojiro Higuchi, Hisamichi Murakami
  • Patent number: 4341901
    Abstract: 2-Trifluoromethylalkanesulfonanilides substituted in the para position by alkylthio, alkylsulfinyl or alkylsulfonyl groups and agriculturally acceptable salts thereof are useful herbicides and plant growth regulators.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: July 27, 1982
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Sharon L. Ruffing, Wallace E. Burg, Ezzat A. Mikhail
  • Patent number: 4340540
    Abstract: To prepare basic dyestuffs of the general formula ##STR1## in which A and B independently of one another represent a hetero-aromatic radical or a radical of the general formula ##STR2## compounds of the general formulaA--CH.sub.2 --BA and B have the abovementioned meaning,are oxidized with oxygen in the presence of a nucleophilic compound of the general formulaD--Hand in the presence of catalytic amounts of benzoquinones substituted by halogen or cyano or of phenanthrenequinones substituted by nitro, and in the presence of catalytic amounts of nitrogen oxides--with the exception of dinitrogen monoxide--or of substances which produce such nitrogen oxides under the reaction conditions.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: July 20, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventor: Karl H. Hermann
  • Patent number: 4339620
    Abstract: There is disclosed a method and composition for improving the fluidization characteristics and alleviating or inhibiting stickiness in a supported cupric chloride catalyst used as fluid bed catalyst in oxyhydrochlorinations reactions. The method involves the in situ preparation of the supported cupric chloride catalyst by addition of bare support on which no cupric chloride is deposited to the supported cupric chloride catalyst in the fluidized bed, or the use in the bed as the initial charge or as addition to the bed as makeup, of a composition which is a mixture of supported cupric chloride catalyst and bare support. In either event, as the oxyhydrochlorination proceeds, a portion of the cupric chloride on the supported catalyst becomes released therefrom and deposited in situ on the bare support, and stickiness of the cupric chloride containing catalyst particles to one another in the fluid bed is alleviated or inhibited.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: July 13, 1982
    Assignee: The B. F. Goodrich Company
    Inventors: Joseph A. Cowfer, Jamal S. Eden, Angelo J. Magistro
  • Patent number: 4338205
    Abstract: Alkenyl succinimide or borated alkenyl succinimide dispersants as exemplified by a polyisobutenyl succinic anhydride-alkylene polyamine reaction product are substantially improved in their dispersancy properties in diesel engines by treating such dispersants at elevated temperatures with an oil-soluble strong acid, such as an alkaryl sulfonic acid or a phosphoric acid, such as a dialkyl monoacid phosphate. The treated dispersants are included in conventional lubricating oil formulations.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: July 6, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: Max J. Wisotsky
  • Patent number: 4338255
    Abstract: Novel modified lithium aluminum hydride type reducing agents obtained by reacting one equivalent of lithium aluminum hydride with one equivalent of an optically active N-substituted ephedrine of the formula, ##STR1## (wherein R.sub.1 is a C.sub.1 -C.sub.4 alkyl group or benzyl group, and Ph is phenyl group)and two equivalents of an N-substituted aniline of the formula, ##STR2## (wherein R.sub.2 is C.sub.1 -C.sub.4 alkyl group or phenyl group, and Ph is phenyl group).This reducing agent is usable for reducing the organic compounds having a carbonyl group (ketone group or aldehyde group) in their structure into the corresponding alcohols. It is particularly useful as a reducing agent for asymmetrically reducing the unsymmetrical ketones to selectively produce either an alcohol in which the asymmetric carbon atom bonded to the hydroxy group is in R-configuration or an alcohol in which said asymmetric carbon atom is in S-configuration.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: July 6, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shiro Terashima, Norihiko Tanno, Kenji Koga
  • Patent number: 4337357
    Abstract: A process for producing novel 1,4-benzothiazine derivatives (I), ##STR1## (in which X is a halogen atom) and their derivatives, ##STR2## wherein R is a (C.sub.1 -C.sub.5) alkyl, (C.sub.3 -C.sub.6) cycloalkyl, phenyl, substituted phenyl, phenyl (C.sub.1 -C.sub.5) alkyl or phenoxy (C.sub.1 -C.sub.5) alkyl group, and herbicides containing these compounds as an active ingredient.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: June 29, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tamon Uematsu, Shunichi Hashimoto, Hiromichi Oshio
  • Patent number: 4336409
    Abstract: In a process for producing a conjugated diolefin which comprises oxidatively dehydrogenating a monolefin having at least 4 carbon atoms in the vapor phase with molecular oxygen to form the corresponding conjugated diolefin; the improvement wherein the oxidative dehydrogenation is carried out in the presence of a catalyst having the general composition formulaMo.sub.a Bi.sub.b Cr.sub.c Ni.sub.d X.sub.e Y.sub.f O.sub.gwherein X represents at least one element selected from Li, Na, K, Rb, Cs, Tl and P, Y represents at least one element selected from metal elements of Group II of the periodic table, and a, b, c, d, e, f and g respectively represent the number of Mo, Bi, Cr, Ni, X, Y and O atoms, and when a=12, b=0.05-20, c=0.05-20, d=0.1-30, e=0.01-10, f=0.01-20, and g is the number of oxygen atoms which satisfies the atomic valences of the other elements.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: June 22, 1982
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Haruhisa Yamamoto, Shinji Matumoto
  • Patent number: 4336387
    Abstract: This invention is concerned with certain 3-(thiazolidin-2'-yl)-substituted phenyl sulfonyl chlorides which find utility as intermediates in the preparation of photographic image dye-providing materials.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: June 22, 1982
    Assignee: Polaroid Corporation
    Inventor: Myron S. Simon
  • Patent number: 4335050
    Abstract: Process for the preparation of the mononitro derivatives substituted in positions 5 or 6 of 1,2,3,4-tetrahydro-anthraquinone, which comprises nitrating 1,2,3,4,4a,9a-hexahydro-9,10-anthracene-dione by means of nitric acid or a mixture of nitric acid and sulfuric acid.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: June 15, 1982
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventors: Serge Delavarenne, Pierre Tellier