Addition Salts Patents (Class 546/182)
  • Patent number: 9643169
    Abstract: The current invention relates to ionic liquid preparation and their application in organic synthesis. More specifically, the present invention relates to the quinoline based ionic liquids having fluoride counter anion and their applications in click chemistry, Knoevenagel condensation to 1,2,5,6-tetrahydronicotinonitrile (12), and pyrazol (15) formation.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: May 9, 2017
    Inventors: Abdul Hameed, Nafees Iqbal, Jamshed Hashim, Khalid Mohammed Khan, Syed Tarique Moin, Shakeel Ahmad, Syed Abid Ali, Fatima Zahra Basha, Mariya al-Rashida, Rima D. Alharthy, Shahnaz Perveen
  • Patent number: 8940499
    Abstract: The present disclosure provides a reagent for blood analysis which may include: (1) a compound having the general formula I as a fluorescent dye, wherein n, X, R1, R2, R3, R4, R5 and Y? are as defined in the specification; (2) a surfactant selected from cationic surfactants, zwitterionic surfactants and anionic surfactants. The present disclosure also provides a method to perform blood analysis including the following steps of: (a) mixing the blood sample with the reagent for blood analysis disclosed to form a cell suspension; (b) detecting the scattered light signals and fluorescence signals from the cells; and (c) differentiating and counting the cells in the blood in terms of the scattered light signals and fluorescence signals.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: January 27, 2015
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Yuji Kuang, Baohua Zhang, Bing Xu, Jianhui Shao, Ting Lei, Li Zhang
  • Publication number: 20140371266
    Abstract: Provided are monoquaternary ammonium compounds which are modulators of nicotinic acetylcholine receptors. Also provided are methods of using the compounds for modulating the function of a nicotinic acetylcholine receptor, and for the prevention and/or treatment of central nervous system disorders, substance use and/or abuse, and gastrointestinal tract disorders.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 18, 2014
    Inventors: Peter CROOKS, Linda P. DWOSKIN, Guangrong ZHENG, Sangeetha SUMITHRAN, Zhenfa ZHENG
  • Patent number: 8877776
    Abstract: Disclosed are malate salts of N-(4-{[6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)-N?-(4-fluorophenyl)cyclopropane -1,1-dicarboxamide, including a (L)-malate salt, a (D)-malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N?-(4-fluorophenyl)-cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N?-(4-ffuorophenyl)cyclopropane-1,1-dicarboxamide.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: November 4, 2014
    Assignee: Exelixis, Inc.
    Inventors: Adrian St. Clair Brown, Peter Lamb, William P. Gallagher
  • Patent number: 8344145
    Abstract: The invention relates to salts of 2-substituted quinolines, the manufacturing method for same, and use of the same for the production of drugs. Said salts are advantageous in that the same can be obtained in crystalline form, which facilitates their implementation in the manufacture of pharmaceutical compositions.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: January 1, 2013
    Assignee: Institut de Recherche pour le Developpement
    Inventors: Alain Fournet, Nashira Campos Vieira, Bruno Figadere, Blandine Seon Meniel, Joël Vacus, Philippe Loiseau, Rodolphe Baudoin
  • Publication number: 20110144154
    Abstract: The invention relates to salts of 2-substituted quinolines, the manufacturing method for same, and use of the same for the production of drugs. Said salts are advantageous in that the same can be obtained in crystalline form, which facilitates their implementation in the manufacture of pharmaceutical compositions.
    Type: Application
    Filed: April 14, 2009
    Publication date: June 16, 2011
    Inventors: Alain Fournet, Nashira Campos Vieira, Bruno Figadere, Blandine Seon Meniel, Joël Vacus, Philippe Loiseau, Rodolphe Baudoin
  • Patent number: 6800619
    Abstract: Described herein are compounds that are useful as caspase inhibitors having the formula: wherein Ring A is an optionally substituted piperidine, tetrahydroquinoline or tetrahydroisoquinoline ring; R1 is hydrogen, CN, CHN2, R, or CH2Y; R is an optionally substituted group selected from an aliphatic group, an aryl group, or an aralkyl group; Y is an electronegative leaving group; R2 is CO2H, CH2CO2H, or esters, amides or isosteres thereof; and R3 is hydrogen, an optionally substituted aryl group, an optionally substituted aralkyl group, or an optionally substituted C1-6 aliphatic group, R4 is an optionally substituted group selected from an aryl group or a heterocyclyl group, or R3 and R4 taken together with the nitrogen to which they are attached optionally form a substituted or unsubstituted monocyclic, bicyclic or tricyclic ring.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: October 5, 2004
    Assignee: Vertex Pharmaceuticals Incorporated
    Inventors: Jean-Damien Charrier, Ronald Knegtel, Michael Mortimore
  • Patent number: 6696468
    Abstract: (S)-4-Amino-5-chloro-2-methoxy-N-[1-[1-(2-tetrahydrofuryl-carbonyl) -4-piperidinylmethyl]-4-piperidinyl]benzamide of the following formula (I): or a pharmaceutically acceptable acid addition salt thereof, or a hydrate thereof, and a process for preparing the same, a pharmaceutical composition containing the same, and intermediate therefor. The compound of the present invention is useful as a gastrointestinal motility enhancer or a gastrointestinal prokinetic agent, which shows a potent affinity for 5-HT4 receptor, and shows few effects on the heart, and further shows few side effects on the central nervous system based on the dopamine D2 receptor.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: February 24, 2004
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Shiro Kato, Hiroshi Yamazaki, Yoshimi Hirokawa, Yoko Kan, Naoyuki Yoshida, Kazuo Morikage, Yukiko Morikage
  • Patent number: 6399820
    Abstract: The present invention relates to a process and a reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function. This persulphonylation process is characterized in that it comprises a step of placing a nucleophile, whose nucleophilic atom is a nitrogen, in contact with a reagent comprising, for successive or simultaneous addition, a heavy halide of sulphonyl, advantageously sulphonyl chloride, and an organic base comprising a trivalent atom from column V whose lone pair is conjugated directly or indirectly to a bond, and in that the organic part of the said sulphonyl is perhalogenated, advantageously perfluorinated, on the carbon borne by the sulphur. Application to the synthesis of intermediates for organic chemistry.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: June 4, 2002
    Assignee: Rhodia Chimie
    Inventors: Jean-Roger Desmurs, Andr{dot over (e)} Millet, Virginie Pevere
  • Patent number: 6399821
    Abstract: The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: June 4, 2002
    Assignee: Rhodia Chimie
    Inventors: Virginie Pevere, Emmanuel Marx, Laurent Gilbert
  • Patent number: 6388081
    Abstract: The present invention relates to novel 4-substituted quinoline compounds of the following formula, libraries containing such compounds, and to the generation of such combinatorial libraries composed of such compounds: wherein R1, R2, R3, R4, R5, R6, R7, R9, and Y, have the meanings provided.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: May 14, 2002
    Assignee: Lion bioscience AG
    Inventors: Thomas K. Hayes, Behrouz Forood, John S. Kiely
  • Patent number: 6140341
    Abstract: Aminoalkyl and acylaminoalkyl ethers which are distinguished by high affinity for the bradykinin B.sub.2 receptor and improved solubility in water are described. These aminoalkyl and acylaminoalkyl ethers can be represented by the formula (I) ##STR1## in which R.sup.1,R.sup.2,R.sup.3 are alkyl, aryl, alkylaryl, halogen, hydrogen, cycloalkyl, CHO, CO--O-alkyl, COOH; R.sup.4, R.sup.5 are hydrogen, halogen, alkoxy, nitro, cyano, S-alkyl; n is a number from 1 to 8; R.sup.6 is hydrogen, alkyl, alkylalkenyl, alkylaryl; R.sup.7 is hydrogen and a substituted or unsubstituted acyl radical. A process for preparing the compounds of the formula (I) is likewise described.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: October 31, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Holger Heitsch, Adalbert Wagner, Klaus Wirth, Bernward Scholkens, Gerhard Nolken
  • Patent number: 6114380
    Abstract: This invention relates to novel difluoro statone analogs, to the processes and intermediates useful for their preparation and to their use as anti-viral agents.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: September 5, 2000
    Assignee: Merrell Pharmaceuticals Inc.
    Inventors: Daniel Schirlin, Viviane Van Dorsselaer, Celine Tarnus
  • Patent number: 6103904
    Abstract: The present invention relates to an improved Skraup reaction process wherein pressure is applied during the reaction and the number of equivalents of sulfuric acid utilized is reduced.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: August 15, 2000
    Assignee: BASF Corporation
    Inventor: Ronald R. Eva
  • Patent number: 5840902
    Abstract: .beta.-Hydroxyalkylpicolinium salts of the formula (I) ##STR1## wherein A, R.sup.1 to R.sup.3 and X have the meanings given in the description, which are obtained by reaction of picolines of the formula (II) ##STR2## with alkylene oxides of the formula (III) in the presence of a 1- to 3-basic acid and in water or an organic solvent as the reaction medium and are used as intermediate products for the preparation of cationic dyestuffs, and dyestuff preparations comprising such cationic dyestuffs.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: November 24, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karlheinrich Meisel, Klaus Walz, Gerd-Friedrich Renner, Hans Schulze, Carsten Gerdes, Karl-Rudolf Gassen, Reiner Ditzer, Lothar Klein
  • Patent number: 5717093
    Abstract: This invention relates to novel difluoro statone analogs, to the processes and intermediates useful for their preparation and to their use as anti-viral agents.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: February 10, 1998
    Assignee: Merrell Pharmaceuticals Inc.
    Inventors: Daniel Schirlin, Viviane Van Dorsselaer, Celine Tarnus
  • Patent number: 5475119
    Abstract: Ionic monomeric diallylammonium compounds having a targeted combination of diallylammonium cations with selected anions have particularly high and constant charge control properties and very good heat stabilities and dispersibilities.The compounds according to the invention are outstandingly suitable for use as colorless charge control agents in toners and developers for electrophotographic recording processes and for use as charge-improving agents in powders and paints for surface coating, in particular in triboelectrically or electrokinetically sprayed powder paints.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: December 12, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudiger Baur, Hans-Tobias Macholdt
  • Patent number: 5446165
    Abstract: The invention concerns quinolinium salt intermediates of the formula I ##STR1## and processes for their manufacture; and their use in the manufacture of aryloxymethyl-substituted 1-alkyl-2-quinolone derivatives which are 5-lipoxygenase inhibitors.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: August 29, 1995
    Assignees: Zeneca Limited, Zeneca Pharma
    Inventors: Jonathan Hutton, David Waterson
  • Patent number: 5283245
    Abstract: The invention concerns a thiazole of the formula I, ##STR1## wherein Q.sup.1 is an optionally substituted 6-membered monocyclic or 10-membered bicyclic heterocyclic moiety containing one or two nitrogen atoms;X is oxy, thio, sulphinyl, sulphonyl or imino;Ar is phenylene which may optionally bear one or two substituents, or Ar is an optionally substituted 6-membered heterocyclene moiety contining up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl;R.sup.2 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl or substituted (1-4C)alkyl or R.sup.2 is optionally substituted benzoyl; andQ.sup.2 is optionally substituted thiazolyl;or a pharmaceutically-acceptable salt thereof.The invention also concerns processes for the manufacture of a thiazole of the formula I and pharmaceutical compositions containing said thiazole.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: February 1, 1994
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Graham C. Crawley, Martin P. Edwards
  • Patent number: 5260442
    Abstract: The invention concerns quinolinium salt intermediates of the formula I ##STR1## and processes for their manufacture; and their use in the manufacture of aryloxymethyl-substituted 1-alkyl-2-quinolone derivatives which are 5-lipoxygenase inhibitors.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: November 9, 1993
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Jonathan Hutton, David Waterson
  • Patent number: 5204344
    Abstract: Compounds having the formula I: ##STR1## are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating diarrhea, hypertension, angina, platelet aggregation, cerebral spasm, premature labor, spontaneous abortion, dysmenorrhea, and migraine.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: April 20, 1993
    Assignee: Merck Frosst Canada, Inc.
    Inventors: Petpiboon Prasit, Rejean Fortin, John H. Hutchinson, Michel L. Belley, Serge Leger, John Gillard, Richard Frenette
  • Patent number: 5053537
    Abstract: Ammonium compounds of the formula (I) ##STR1## in which at least one of the radicals R.sub.1 to R.sub.4 denotes a fluorine-containing alkyl radical having 4 to 30 carbon atoms and not more than three of the radicals R.sub.1 to R.sub.4 independently of one another denote hydrogen atoms or alkyl or hydroxyalkyl radicals having 1 to 30 carbon atoms, and R.sub.5 to R.sub.8 denote aryl, alkylaryl or halogenoaryl radicals or fluorine atoms, and iminium compounds of the formula (II) ##STR2## in which Q, together with the constituent ##STR3## forms a ring system having 4 to 17 carbon atoms, which can be interrupted by 1 to 4 hetero atoms and contain 2 to 9 double bonds, and which can be substituted by fluorine, chlorine, bromine or iodine atoms or alkyl (C.sub.1 -C.sub.6), alkoxy (C.sub.1 -C.sub.6), nitro or amino groups, R.sub.9 denotes a fluorine-containing alkyl (C.sub.1 -C.sub.30) radical, R.sub.10 denotes a hydrogen, fluorine, chlorine, bromine or iodine atom or an alkyl(C.sub.1 -C.sub.6), alkoxy (C.sub.1 -C.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: October 1, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jorg Gitzel, Hans-Tobias Macholdt, Frank Wehowsky, Gunther Prossel
  • Patent number: 4892899
    Abstract: Composition of matter containing(a) a compound of the formula I ##STR1## in which A is one of the groups of the formulae ##STR2## in which B is --O--, --S--, --SO.sub.2 --, --N.dbd.N--, --CH.sub.2 --, --CH.dbd.CH--, ##STR3## --CONH--, --NHCONH--, or --CONHNHCO--, Q is --O-- or --NH-- and Z is --O-- or --S-- and R and R' are independently of each other hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy, and(b) a compound of the formula II ##STR4## in which A' is as defined above for A, D is hydrogen, amino or a group of the formula III ##STR5## E is --O-- or --S--, T.sub.1, T.sub.2 and T.sub.3 independently of one another are chlorine or a group --ET', T' is a group of the formulae ##STR6## X.sup..sym. is H.sup..sym. or a group of the formulae M.sup.n.sym. /n or N.sup..beta. (R.sub.1)(R.sub.2)(R.sub.3)(R.sub.4), Mhu n.sym. is an n-valent metal cation, n is 1, 2 or 3, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently of one another hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: January 9, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Edward E. Jaffe, Jost von der Crone, Bernhard Medinger
  • Patent number: 4889934
    Abstract: Novel organic mixed complexes are provided which have the general formulaD.sup.+.[A.TCNQ]wherein D.sup.+ is an N-alkylonium cation derived from a nitrogen-containing hetercyclic compound (D) selected from the group consisting of pyridines, guinolines, isoquinolines and imidazoles and [A.TCNQ] is an anion radical derived from a 2,5-bis[(alkoxycarbonyl)-ethyl]-7,7,8,8-tetracyanoquinodimethane (A) of the formula ##STR1## in which R is an alkyl group containing 1-10 carbon atoms, and 7,7,8,8-tetracyanoquinodimethane (TCNQ).
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: December 26, 1989
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeo Kawabata, Masahiko Miyashita, Akira Taisha
  • Patent number: 4885368
    Abstract: Novel radical ion salts of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are each hydrogen, methyl, ethyl, phenyl, methoxy, ethoxy, fluorine, chlorine or bromine, or R.sup.1 or R.sup.1 and R.sup.3 may furthermore be tert-butyl and/or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together may in each case form a radical of the formula ##STR2## where z is 0, 1, 2 or 3, and the fused aromatic rings are unsubstituted or monosubstituted or disubstituted by chlorine, bromine, methyl and/or methoxy, M.sup.m.sym. is an m-valent alkali metal, alkaline earth metal, transition metal, tin, lead, thallium, ammonium, phosphonium, arsonium or stibonium ion, k is from 1 to 5, l is from 0.1 to 4, m is from 1 to 3, n is from 0.1 to 4, x is from 0 to 2 and y is from 0 to 6, and k, l, n, x and y may furthermore be non-integral numbers and (l+x)=n.m, are electrically conductive in the crystalline state. A number of the salts are stable at 300.degree. C. and above.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: December 5, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Siegfried Huenig, Alexander Aumueller, Peter Erk
  • Patent number: 4865650
    Abstract: Composition of matter containing:(a) a compound of the formula I ##STR1## in which A is one of the groups of the formulae ##STR2## in which B is --O--, --S--, --SO.sub.2 --, --N.dbd.N--, --CH.sub.2 --, --CH.dbd.CH--, --O--CH.sub.2 --O-- ##STR3## --CONH--, --NHCONH-- or --CONHNHCO--, Q is --O' or --NH' and Z is --O-- or --S-- and R and R' are independently of each other hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy, and (b) a compound of the formula II ##STR4## in which X.sup..sym. is H.sup..sym. or a group of the formulae ##EQU1## or N.sup..sym. (R.sub.1) (R.sub.2) (R.sub.3) (R.sub.4), M.sup.n.sym. is an n-valent metal cation, n is 1, 2 or 3, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently of one another hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, unsubstituted or C.sub.1 -C.sub.18 -alkyl-substituted phenyl or R.sub.3 and R.sub.4 together with the N atom form a pyrrolidine, imidazolidine, piperidine, piperazine or morpholine radical, or R.sub.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: September 12, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Jost von der Crone, Bernhard Medinger, Philippe Bugnon
  • Patent number: 4855423
    Abstract: Sulfatobetaines are prepared by reacting an addition compound of sulfur trioxide and a tertiary amine with an alkylene carbonate.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: August 8, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerold Braun, Chung-Ji Tschang, Christos Vamvakaris, Klaus Glaser
  • Patent number: 4824955
    Abstract: This invention relates to the novel selenium compounds which are useful as an antineoplastic agent. The compounds are represented by the general formula (I):Se(O).sub.a (R).sub.b (X).sub.c (A).sub.n (Y).sub.m (I)wherein R, X, A and Y represent the groups specified below, a represents a number of 0 or 1, b represents a number of 0, 1 or 2, and (1) when a is 0 and b is also 0, c is 4, n is 1 or 2 and m is 0, (2) when a is 1 and b is 0, c is 2, n is 1 or 2 and m is 0 or 1, and (3) when b is 1 or 2, c, n and m are all 0;(i) when b is 2, R represents (1) a C.sub.4-10 alkoxy group substituted with a halogen atom, (2) a lower alkoxyl group substituted with a halogen atom and a phenyl group, or (3) a cycloalkyloxy group substituted with a halogen atom, and (ii) when b is 1, R represents a group represented by the formula ##STR1## (wherein R.sub.0 is a C.sub.2-6 alkyl group); X represents a halogen atom;A represents a compound represented by the formula ##STR2## (wherein R.sub.1 and R.sub.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: April 25, 1989
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hisao Ekimoto, Masanobu Suzuki, Takao Izawa, Katsutoshi Takahashi, Tokuji Nakatani, Akio Fujii
  • Patent number: 4801713
    Abstract: Novel, highly electroconductive organic complexes are disclosed which have the general formulaD.sup.+.A.sup.-wherein the constituent D.sup.+ is an N-alkyl-onium cation (D.sup.+) derived from a nitrogen-containing heterocyclic compound (D) selected from the group consisting of pyridines, quinolines, isoquinolines and imidazoles and the constituent A.sup.- is the anion radical corresponding to a 2,5-disubstituted-7,7,8,8-tetracyanoquinodimethane (A) of the general formula ##STR1## wherein X is --COOR (R being an alkyl group containing 1-10 carbon atoms) or --CN.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: January 31, 1989
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeo Kawabata, Akira Taisha
  • Patent number: 4764217
    Abstract: Composition containing(a) an isoindoline pigment of the formula I ##STR1## and (b) a compound of the formula II ##STR2## Pigment mixtures of this kind, in particular when used in paints, are distinguished in particular by increased tinctorial strength and high lustre and especially by improved rheology.For the definition of the substituents and symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q, X, Y and Z, see claim 1.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 16, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Jost von der Crone, Bernhard Medinger, Philippe Bugnon
  • Patent number: 4672118
    Abstract: Corrosion of metal surfaces in contact with an aqueous medium is inhibited by incorporating a N-(hydrophobe aromatic)pyridinium compound such as N-(p-dodecylphenyl)-2,4,6-trimethylpyridinium sulfoacetate into the aqueous medium.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: June 9, 1987
    Assignee: The Dow Chemical Company
    Inventors: Thomas E. Fisk, Christopher J. Tucker
  • Patent number: 4587296
    Abstract: Additives for rubber compositions, giving vulcanisates having improved retention of optimum physical properties, are compounds containing two or more groups of the formula --S--SO.sub.2 R linked by an organic bridging group, or polymers containing two or more groups of the formula --S--SO.sub.2 R attached to an organic polymer chain, where R represents (a) a radical OM where M is a monovalent metal, the equivalent of a multivalent metal, a monovalent in derived by the addition of a proton to a nitrogenous base, or the equivalent of a multivalent ion derived by the addition of two or more protons to a nitrogenous base, or (b) an organic radical selected from aliphatic, cycloaliphatic, aromatic and heterocyclic radicals, and radicals which are combinations of any two or more such radicals.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: May 6, 1986
    Assignee: Monsanto Europe, S.A.
    Inventor: Philippe G. Moniotte
  • Patent number: 4440570
    Abstract: The disclosure relates to a process for purifying and recovering a contaminated catalyst solution which is obtained in the carbonylation of methyl acetate and/or dimethylether, the catalyst solution containing carbonyl complexes of noble metals of group VIII of the Periodic System of the elements, quaternary heterocyclic aromatic nitrogen compounds or quaternary organophosphorus compounds as organic promoters, undistillable organic contaminants as well as acetic acid, acetic anhydride and ethylidene diacetate.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: April 3, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Erpenbach, Klaus Gehrmann, Winfried Lork, Peter Prinz
  • Patent number: 4267122
    Abstract: Aminosulfonylcarboxylic acids and their manufacture from diamines and chlorosulfonylcarboxylic acids.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: May 12, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Lucien Thil, Martin Fischer, Wolfgang Kindscher
  • Patent number: 4246414
    Abstract: A 2-alkoxyalkoxy-5-nitrobenzenesulfonic acid or a salt thereof represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an alkylene group having 2 or more carbon atoms; R.sup.2 represents an alkyl group; and M represents an inorganic or organic cation. The compound represented by the general formula (I) is useful as an intermediate for a dye releasing redox compound which is suitable for use in the color diffusion transfer process.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: January 20, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinsaku Fujita, Shigetoshi Ono, Hidetoshi Hayashi
  • Patent number: 4214083
    Abstract: Lubricating oil additives, including the calcium salts of sulfurized alkylphenols and dispersants consisting of the reaction products of halogenated polyalkylenes and heterocyclic amines, are substantially decolorized by treatment with small amounts of alkali metal hydrides in a polar solvent at 20.degree. to 120.degree. C. Color improvement is obtained at concentrations ranging from 1 to 75 parts of an alkali metal hydride per 1000 parts of additive.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: July 22, 1980
    Assignee: Texaco Inc.
    Inventors: John M. Larkin, William P. Cullen, Rodney L. Sung, Benjamin H. Zoleski
  • Patent number: 4212709
    Abstract: An acidic nickel electroplating bath containing brighteners and levelling agents, wherein the levelling agents are compounds of the formula I ##STR1## where N is a hetero-aromatic nitrogen base, R, R.sup.1 and R.sup.2 are hydrogen or alkyl, R.sup.3 is arylene, X is SO.sub.3.sup.-, Y is a neutralizing cation, n is from 1 to 3 and m is from 1 to 2.5.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: July 15, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Dieter Schneider, Guenther Gotsmann, Albert Hettche