Patents Examined by J. G. Mullins
  • Patent number: 4680052
    Abstract: The invention relates to new benzodisultams of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkemyl, alkinyl and aralkyl, andR.sup.3 represents an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation and their use as herbicides.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: July 14, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister, Uwe Priesnitz, Hans-Jochem Riebel, Wolfgang Roy, Hans-Joachim Santel, Robert R. Schmidt
  • Patent number: 4680325
    Abstract: Isocyanurate esters of thioalkanoamidophenols useful in the stabilization of organic materials normally susceptible to oxidative degradation are prepared by reacting an appropriate isocyanurate trithiol, which is a selected tris-mercapto alkanoic acid ester of tris-(2-hydroxyethyl) isocyanurate with an appropriate alkenyl compound, which is a selected N-alkenyl[4-amino-(mono- or dialkyl)phenol] or, where the alkano moiety is a sole methylene group, by reaction of tris-(2-hydroxyethyl) isocyanurate with an appropriate [mercapto-N-(mono- or di-alkyl]-4-hydroxyphenylalkanamide alkenoic] acid. In a preferred embodiment, the ester is 1,3,5-tris{2-hydroxy ethyl-[3-mercapto-(3',5'-di-tert-butyl-4'-hydroxypropionanilide)]propionat e}isocyanurate.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: July 14, 1987
    Assignee: Mallinckrodt, Inc.
    Inventors: Neil Dunski, Ali A. Bazzi, Henry J. Buehler
  • Patent number: 4680394
    Abstract: An improved process for preparing formaldoxime trimer is provided in which loss of the product is minimized and the prior art problems of long retention times to afford precipitation of the trimer which is difficult to filter and which occludes the undesirable salt of the acid that is difficult to remove. The method disclosed involved oximation of paraformaldehyde using dehydroxylamine sulfate and ammonia gas followed by steam stripping to recover formaldoxime and separate trimerization thereof followed by filtration recovery and drying.The formaldoxime trimer is produced in essentially quantitative yield and proceeds specifically by a procedure of steam stripping out the formaldoxime monomer from the synthesis liquor and allowing separate trimer formation and recovery. The product is free from inorganic salts and the mother liquor with formaldoxime monomer content, resulting from its recovery by filtration, does not represent a yield loss in that it is recyclable to the next synthesis reaction.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: July 14, 1987
    Assignee: Allied Corporation
    Inventor: John H. Bonfield
  • Patent number: 4677202
    Abstract: Radiation sensitive silver halide photographic elements are disclosed which are protected from fog by quaternized aromatic oxatellurazinium salts. The aromatic oxatellurazinium salts can be initially incorporated in the photographic element as manufactured or during processing.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: June 30, 1987
    Assignee: Eastman Kodak Company
    Inventors: Rosemary Przyklek-Elling, Wolfgang H. H. Gunther, Roger Lok
  • Patent number: 4677212
    Abstract: The invention relates to N-phenylsulfonyl-N'-pyrimidinylureas and N-phenylsulfonyl-N-triazinylureas of the general formula ##STR1## wherein Q is selected from a radical ##STR2## Z is oxygen or sulfur, E is nitrogen or .dbd.CH--,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.3 alkoxy, andR.sub.3 and R.sub.4, each independently of the other, are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 haloalkylthio, C.sub.1 -C.sub.4 alkylthio, halogen, C.sub.2 -C.sub.5 alkoxyalkyl, C.sub.2 -C.sub.5 alkoxyalkoxy or --NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 are hydrogen or C.sub.1 -C.sub.4 alkyl,and to the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases. These compounds have good pre- and postemergence selective herbicidal and growth regulating properties.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: June 30, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Josef Ehrenfreund, Werner Fory, Willy Meyer, Werner Topfl
  • Patent number: 4677115
    Abstract: Aromatic sulfonamides with a saturated heterocycle fused thereto are carbonic anhydrase inhibitors useful in the treatment of elevated intraocular pressure.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: June 30, 1987
    Assignee: Merck & Co., Inc.
    Inventors: John J. Baldwin, Marcia E. Christy, Gerald S. Ponticello
  • Patent number: 4675415
    Abstract: A new class of organic superconductors having the formula (ET).sub.2 MX.sub.2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET).sub.2 AuI.sub.2 exhibits a transition temperature of 5 K. which is high for organic superconductors.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: June 23, 1987
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jack M. Williams, Hsien-Hau Wang, Mark A. Beno
  • Patent number: 4675340
    Abstract: Pesticidal oxime N-alkyl-N-.alpha.-haloacyl-carbamates represented by the structure: ##STR1## wherein R represents an imino radical, R' and R" represent alkyl radicals and X is chlorine, fluorine or bromine.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: June 23, 1987
    Assignee: Union Carbide Corporation
    Inventor: Themistocles D. J. D'Silva
  • Patent number: 4675401
    Abstract: Polyisocyanurate/polyisocyanates of enhanced stability are prepared by partial catalytic cyclotrimerization of a polyisocyanate in the presence of a catalytically effective amount of an aminosilyl catalyst and wherein the cyclotrimerization reaction is terminated when a predetermined desired amount of isocyanurate groups has been attained, by adding to the reaction mixture, after the cooling thereof to a temperature of below 50.degree. C., a reaction terminating amount of an organic catalyst deactivating compound comprising at least one free hydroxyl moiety, or the reaction product of such hydroxylated organic catalyst deactivating compound with an isocyanate.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: June 23, 1987
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Jean Robin
  • Patent number: 4670559
    Abstract: 2-Amino-4-cyclopropyl-1,3,5-triazines and processes for their production are disclosed. The 2-amino-4-cyclopropyl-1,3,5-triazines are intermediate in the production of herbicidally active N-(cyclopropyltriazinyl)-N'-arylsulfonyl ureas and correspond to the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, and R.sub.2 is C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -haloalkyl or C.sub.2 -C.sub.6 -alkoxyalkyl.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: June 2, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Henry Szczepanski
  • Patent number: 4670567
    Abstract: 5,6-Dihydro-2H-thiopyran-3-carboxaldehydes of the formula ##STR1## where R denotes hydrogen or methyl, are prepared by a method in which acrolein or crotonaldehyde is reacted with hydrogen sulfide in a mineral oil whose boiling point is higher than those of the starting materials and of the end product, and the 5,6-dihydro-2H-thiopyran-3-carboxaldehyde is obtained by distillation. These aldehydes are important intermediates for the preparation of some crop protection agents.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: June 2, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Sauerwald, Toni Dockner, Wolfgang Rohr, Gernot Reissenweber
  • Patent number: 4668799
    Abstract: A 1,3-dithiol-2-ylidene derivative of the formula: ##STR1## wherein each of R and R.sup.1 which may be the same or different, is a lower alkyl group, a lower alkenyl group, a cycloalkyl group, a lower alkoxyalkyl group, or a substituted or unsubstituted aryl, aralkyl or heterocyclic group, or R and R.sup.1 together form a substituted or unsubstituted ethylene or trimethylene group.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: May 26, 1987
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Junji Yoshizawa, Yoshimi Tsuchiya, Yukio Hirayama, Kaoru Shimada, Nobuyuki Mino, Kyoko Nakamichi, Ikuo Matsumoto
  • Patent number: 4668697
    Abstract: Novel 2-sulfamoylbenzo[b]thiophenes and derivatives thereof are shown to be useful for the treatment of elevated intraocular pressure in compositions including ophthalmic drops and inserts.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: May 26, 1987
    Assignee: Merck & Co., Inc.
    Inventors: Kenneth L. Shepard, Samuel L. Graham
  • Patent number: 4666900
    Abstract: This invention relates to compounds of formula ##STR1## or a pharmaceutically acceptable salt thereof wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently represent hydrogen or a substituent selected from lower alkyl, lower alkoxy, halogen, alkanoyl of 2 to 7 carbon atoms, lower alkoxycarbonyl, halolower alkyl, hydroxy, cyano, amino, mono- or diloweralkyl amino, C.sub.2 -C.sub.7 alkanoylamino, carboxy, carboxylower alkyl, hydroxyloweralkyl, carbamoyl, carbamoyloxy, lower alkyl- or aryl-carbonyl, (lower alkoxy)-lower alkoxy, phenyl or a phenyl group itself optionally substituted by a substituent as hereinbefore defined excepting phenyl, or an adjacent pair of R.sup.1-4 together with the carbon atoms to which they are attached complete a six membered unsaturated carbocyclic or nitrogen containing heterocyclic ring, optionally substituted by one or more of the substituents listed above for R.sup.1 ; m represents 0 or 1; and R.sup.5, R.sup.6, R.sup.7 and R.sup.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: May 19, 1987
    Assignee: John Wyeth & Brother Ltd.
    Inventors: Roger Crossley, Peter J. Meade
  • Patent number: 4665206
    Abstract: The invention relates to compounds of the general formula I ##STR1## wherein R.sub.1 represents one up to and including four, the same or different substituents selected from alkyl(1-6 C), alkoxy(1-6 C), hydroxy, halogen, NO.sub.2 CF.sub.3 or the group --NR.sub.5 R.sub.6, whereby two substituents taken together may also represent a methylene-dioxy group,X represents nitrogen or the group ##STR2## n has the value 0, 1 or 2, R.sub.3 represents one of the moieties: ##STR3## the latter meaning of R.sub.3 (amide) only under the condition that for X is nitrogen the meaning of R.sub.1 is limited to substituents selected from hydroxy, alkoxy(1-6 C) and methylenedioxy, and R.sub.4, R.sub.5 and R.sub.6 represent hydrogen or alkyl(1-6 C), and pharmaceutically acceptable salts thereof, suitable in the treatment of heart failure.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: May 12, 1987
    Assignee: Akzo N.V.
    Inventors: James Redpath, Robert T. Logan, David B. McFadzen, Robert G. Roy
  • Patent number: 4665202
    Abstract: The invention relates to pharmaceutical preparations containing compounds of formula I ##STR1## in which X.sub.1 and X.sub.2, independently of each other, represent hydrogen, halogen, unsubstituted or substituted amino or a quaternary ammonium salt; etherified or esterified hydroxy; free, etherified, esterified or oxidized mercapto; nitro; functionally modified formyl; free or functionally modified carboxyl; acyl; an unsubstituted or substituted hydrocarbon radical, or an unsubstituted or substituted heterocyclic radical; with the proviso that at least one of the radicals X.sub.1 and X.sub.2 is bonded by a carbon atom to the ring system and with the proviso that X.sub.1 and X.sub.2 cannot be together halogen and formyl; in which Y represents oxygen, sulfur, sulfinyl or sulfonyl but must be sulfur, sulfinyl or sulfonyl, if X.sub.1 is hydrogen and X.sub.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: May 12, 1987
    Assignee: Zyma SA
    Inventors: Christian G. Rimbault, Philippe M. Narbel
  • Patent number: 4663307
    Abstract: Novel 6H-dibenz[b,e][1,4]oxathiepin derivatives of the Formulae I and IA are employed in the treatment and control of allergic conditions such as allergic asthma.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: May 5, 1987
    Assignee: Merck Frosst Canada, Inc.
    Inventors: Yves Girard, Joshua Rokach, Pierre Hamel
  • Patent number: 4663344
    Abstract: 3-Hydroxybenzo[b]thiophene derivatives, such as 2-aralkyl, 2-alkyl and 2-alkenyl-3-hydroxybenzo[b]-thiophenes, were prepared by, among other methods, ring closure of 2-(2-carboxy-phenylthio)-.alpha.-substituted acetic acids. These compounds are found to be useful in the treatment of pain, fever, inflammation, arthritic conditions, asthma, allergic disorders, skin diseases, cardiovascular disorders, psoriasis, inflammatory diseases and other prostaglandin and/or leukotriene mediated diseases.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: May 5, 1987
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, Bruce E. Witzel, Kathleen M. Rupprecht, Allan N. Tischler, Timothy F. Gallagher
  • Patent number: 4659733
    Abstract: Disclosed are 2,3-diamino-1,4-butanedithiol; 4,5-diamino-1,2-dithiane; and their N-acyl and N-alkyl derivatives. Also disclosed are processes for preparing the disclosed compounds; pharmaceutical compositions comprising such compounds; and a method of treatment comprising administering such compounds and compositions when an antihypertensive effect or radioprotective effect is indicated.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: April 21, 1987
    Assignee: Alcon Laboratories, Inc.
    Inventors: Mark T. DuPriest, Billie M. York, Jr.
  • Patent number: 4659827
    Abstract: 2,4-Dihydroxypyrimidines of the formula ##STR1## with the substituent meanings given in the description, are obtained by reacting pyrimidines of the formula ##STR2## with the substituent meanings given in the description, with aqueous alkalis at elevated temperature. 2,4,5,6-Tetrachloropyrimidine is obtained from the dihydroxypyrimidines by reaction with agents which replace hydroxyl by chlorine.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: April 21, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl J. Herd, Karl H. Schundehutte