Patents Represented by Law Firm Hammond & Littell, Weissenberger & Muserlian
  • Patent number: 4366315
    Abstract: An improved process for the preparation of 3'-bromo-desacetoxycephalosphoranic acid sulfoxide compounds comprising protecting the 4-carboxy group of a 3'-unsubstituted cephalosporanic acid sulfoxide by silylating in an inert anhydrous organic solvent and brominating the silylated compound in situ which 3'-bromo compounds are valuable intermediates for the preparation of therapeutically useful cephalosporanic acid compounds.
    Type: Grant
    Filed: February 13, 1981
    Date of Patent: December 28, 1982
    Assignee: Gist-Brocades N.V.
    Inventors: Cornelis A. Bruynes, Theodorus K. Jurriens
  • Patent number: 4364944
    Abstract: Compounds of the formula ##STR1## wherein Y is hydrogen or methoxy;A is ##STR2## or, when Y is methoxy, also phenyl, 4-hydroxy-phenyl, 2-thienyl, 3-thienyl of 3,4-dihydroxy-phenyl;A' is hydrogen, --COCH.sub.2 Cl, --COCH.sub.2 Br, --COOCH.sub.2 CCL.sub.3, formyl or trityl;D is hydrogen, acetoxy, aminocarbonyloxy, pyridinium, 4-aminocarbonyl-pyridinium or -S-Het, where Het is 3-methyl-1,2,4-thiadiazol-5-yl, 1,2,4-thiadiazol-5-yl, 1,3,4-thiadiazol-5-yl, 2-methyl-1,3,4-thiadiazol-5-yl, 4H-5,6-dioxo-1,2,4-triazine-3-yl, 4-methyl-5,6-dioxo-1,2,4-triazin-3-yl, 1-vinyl-tetrazol-5-yl, 1-allyl-tetrazol-5-yl or ##STR3## n is 1, 2 or 3; R.sub.1 is hydroxyl, amino, dimethylamino, acetylamino, aminocarbonyl, aminocarbonylamino, aminosulfonyl, aminosulfonylamino, methylcarbonyl, methylsulfonylamino, cyano, hydroxysulfonylamino, methylsulfonyl, methylsulfinyl, a carboxylic acid group or a sulfonic acid group; or--(CH.sub.2).sub.n R.sub.1 is alkyl of 1 to 4 carbon atoms or 2,3-dihydroxy-propyl;R.sub.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: December 21, 1982
    Assignee: Dr. Karl Thomae Gesellschaft mit beschrankter Haftung
    Inventors: Bernd Wetzel, Eberhard Woitun, Wolfgang Reuter, Roland Maier, Uwe Lechner, Hanns Goeth
  • Patent number: 4364836
    Abstract: A process for the purification of cold-water soluble cellulose ethers containing alkali metal halides consisting essentially of suspending a cold-water-soluble cellulose ether crude reaction product containing 25% by weight or more of alkali metal halides, based on the dry weight, in an aqueous solution containing from 4% to about 25% by weight of one or more water-soluble salts of acids selected from the group consisting of polybasic inorganic acids and organic polycarboxylic acids with agitation at a temperature of from 10.degree. C. to 50.degree. C., separating the purified cellulose ether solids and optionally repeating the suspending and separating steps one or more times. The resulting material can be employed in washing and cleansing composition slurries for spray-drying. The process is especially suitable for the treatment of methyl cellulose or water-soluble mixed ethers of methyl or ethyl cellulose with a sodium sulfate solution.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: December 21, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Horst Ziche
  • Patent number: 4364777
    Abstract: An alkaline washing composition comprised of strongly alkaline reacting inorganic salts, optionally wetting agents and a defoaming effective amount of at least one mixed formal of an alkylpolyglycol ether having the formula:R.sub.1 --O--(CH.sub.2 CH.sub.2 O).sub.m --CH.sub.2 --(OCH.sub.2 CH.sub.2).sub.n --O--R.sub.2wherein R.sub.1 is a straight or branched chain alkyl or alkenyl with from 8 to 22 carbon atoms, R.sub.2 is a straight or branched chain alkyl with from 1 to 5 carbon atoms, m is a number from 2 to 30 and n is a number from 1 to 3; as well as the improvement in the process of washing rigid solid articles comprising contacting the soiled rigid solid articles with a strongly alkaline washing solution containing a defoaming effective amount of a defoaming agent, rinsing said rigid solid articles and recovering cleaned rigid solid articles, the improvement consisting of using said mixed formal as said defoaming agent.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: December 21, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaa)
    Inventors: Margarete Grunert, Karl Schmid, Holger Tesmann
  • Patent number: 4364928
    Abstract: Ion exchange resins of the acid type at least partially salified with 7-bromo-6-chloro-febrifugin having very good coccidiostatic activity, a very good anti-leucocytozoonosis activity and a low toxicity and their preparation.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: December 21, 1982
    Assignee: Roussel-Uclaf
    Inventors: Jacques Martel, Jean Tessier, Pierre Girault, Jean A. Grandadam
  • Patent number: 4364939
    Abstract: Novel monoesters of cobamide derivatives of coenzyme B.sub.12 of the formula: ##STR1## wherein R is acyl of an organic carboxylic acid of 4 to 20 carbon atoms and Co is .alpha.-(5,6-dimethyl-benzimidazolyl)-cobamide which is a mixture of the said monoesters having dibencozide type properties and a process for their preparation.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: December 21, 1982
    Assignee: Roussel Uclaf
    Inventors: Denise Autissier, Pierre Barthelemy
  • Patent number: 4364811
    Abstract: This invention relates to electrodes for electrolytic cells. More particularly, this invention relates to electrodes for an electrolytic cell comprising:(a) means for supplying electric current;(b) a main current distributor;(c) rectangular-sectioned conductors having flat activated electrode faces and arranged standing upright, the ratio of the width to height of a cross-section being from about 1:5 to about 2:3; and(d) flat, rectangular-sectioned current distributors arranged perpendicularly to the conductors (c) and spaced from about 30 to about 150 mm apart, the ratio of the width to height of a cross-section being smaller than that for the cross-section of conductors (c), the ratio of free passage area to projected area in the zone of the conductors (c) being from about 20:30 to about 60:80 and conductors (c) being connected to current distributors (d), which are in turn connected to main current distributor (b).
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: December 21, 1982
    Assignee: Heraeus Elektroden GmbH
    Inventors: Peter Fabian, Karlheinz Eisenhuth, Ernst Jedlitschka, Helmut Krebs
  • Patent number: 4364875
    Abstract: The method of preparing a compound of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, alkyl of 1 to 8 carbon atoms, trifluoromethyl or acetyl;n is 1 when R.sub.1 has all the defined meanings, or 2 or 3 when R.sub.1 is halogen or alkyl;R.sub.2 is hydrogen; alkyl of 1 to 16 carbon atoms; alkenyl of 2 to 16 carbon atoms; alkinyl of 2 to 16 carbon atoms; monosubstituted alkyl of 2 to 6 carbon atoms, where the substituent is hydroxyl, alkoxy of 1 to 4 carbon atoms, phenoxy, halo-phenoxy, (alkyl of 1 to 4 carbon atoms) phenoxy, (alkoxy of 1 to 4 carbon atoms)phenoxy, nitro-phenoxy, cyano-phenoxy, amino or (alkyl of 1 to 4 carbon atoms)thio; benzyl; halo-benzyl; --NR.sub.3 R.sub.4 ; --CHR.sub.3 --COOR.sub.4 ; or --CHR.sub.3 --CONR.sub.4 R.sub.5, whereR.sub.3, R.sub.4 and R.sub.5 are each hydrogen or alkyl of 1 to 8 carbon atoms; andX.sub.1 and X.sub.2 are each hydrogen or halogen,which comprises reacting a compound of the formula ##STR2## wherein n, R.sub.1, X.sub.1 and X.sub.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: December 21, 1982
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Richard Sehring, Wolfgang Buck
  • Patent number: 4365040
    Abstract: Strongly adhering aqueous plastic dispersions based on copolymers of olefinically unsaturated compounds, which are particularly suitable as binding agents for paints and lacquers and as adhesives, and which are distinguished by their good wet adhesion are described. This is achieved by the inclusion by polymerization of from 0.2% to 7% by weight, based on the total weight of the monomers, of vinyl and/or allyl diacetylacetate having the formula:CH.sub.2 .dbd.CH--(CH.sub.2).sub.n --O--CO--CH(CO--CH.sub.3).sub.2wherein n is 0 or 1, in the production of copolymers of the invention in an aqueous emulsion.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: December 21, 1982
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Eck, Robert Singer
  • Patent number: 4363766
    Abstract: A process for the preparation of sulfur-containing N-benzyl-amino acids of the formula ##STR1## wherein X and Y, which may be identical to or different from each other, are each hydrogen or halogen;R.sub.1 is hydrogen or alkyl of 1 to 4 carbon atoms;R.sub.2 is hydrogen, alkyl of 1 to 3 carbon atoms, carboxy-lower alkyl or acyl;R.sub.3 is hydrogen or acyl; andn is 1 or 2;which comprises the steps of converting anthranilic acid or a halogenated anthranilic acid into the corresponding aldehyde, reacting the aldehyde with a compound of the formula ##STR2## wherein R.sub.1, R.sub.2 and n have the meanings previously defined, to form the corresponding Schiff's base, reducing the said Schiff's base, and recovering the reaction product.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: December 14, 1982
    Assignee: Boehringer Ingelheim GmbH
    Inventor: Bernard Bellegarde
  • Patent number: 4363754
    Abstract: 4(5)-acetyl-9,9-dimethyltricyclo-[4,4,0,1.sup.8,10 ]-undec-1-ene having the formula ##STR1## its synthesis, its use as a perfumery agent and as an olfactant component in perfumery compositions and as an odorant for technical products.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: December 14, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jens Conrad, Klaus Bruns, Horst Upadek
  • Patent number: 4363902
    Abstract: Poly-.alpha.-olefins, particularly polyethylene, having a broad molecular-weight distribution, can be prepared in the presence of a catalyst solid which is manufactured in two reaction steps, from a primary solid containing magnesium and chlorine which has been reacted, in a reaction stage A, with alkoxy compounds of elements of Groups I to VI of the Mendeleev Periodic Table which contains at least one secondary or tertiary alkoxy group, and with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table and, in reaction stage B, with halogen-containing metal compounds of elements of IV and/or V sub-group(s) of the Mendeleev Periodic Table, and/or metal organyl compounds of metals of the II and/or III main group(s) of the Mendeleev Periodic Table. The sequence of the reaction stages A and B is not critical for the success of the process according to the invention.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: December 14, 1982
    Assignee: Wacker-Chemie GmbH
    Inventor: Dieter Kurz
  • Patent number: 4363814
    Abstract: Racemic or optically active compounds of the formulaQ--C.sub.n H.sub.2n --NH--Rwherein Q is ##STR1## where R.sub.1 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, trifluoromethyl or amino,R.sub.2 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, orR.sub.1 and R.sub.2, together with each other, are methylenedioxy or ethylenedioxy;n is an integer from 2 to 6, inclusive; andR is hydrogen, benzyl or ##STR2## and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as vasodilators and CNS-stimulators.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: December 14, 1982
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Anton Mentrup, Kurt Schromm, Ernst-Otto Renth, Richard Reichl, Werner Traunecker
  • Patent number: 4362725
    Abstract: Compounds of the formula ##STR1## wherein A is phenyl, 4-hydroxy-phenyl, 2-thienyl, 2-furyl or 3,4-dihydroxy-phenyl;Y is hydrogen or methoxy;Het is 4H-5,6-dioxo-1,2,4-triazin-3-yl,4-methyl-5,6-dioxo-1,2,4-triazin-3-yl,2-methyl-5,6-dioxo-1,2,4-triazin-3-yl,1-vinyl-tetrazol-5-yl, 1-allyl-tetrazol-5-yl or ##STR2## where n is an integer from 1 to 3, inclusiveR.sub.1 is hydroxyl, amino, dimethylamino, acetylamino, aminocarbonyl, aminocarbonylamino, aminosulfonyl, aminosulfonylamino, methylcarbonyl, methylsulfonylamino, cyano, hydroxysulfonylamino, methylsulfonyl, methylsulfinyl, a carboxylic acid group or a sulfonic acid group, and--(CH.sub.2).sub.n --R.sub.1 may also be alkyl of 2 to 4 carbon atoms or 2,3-dihydroxy-propyl;R is cyclopropyl, 4'-hydroxycyclohexyl-amino ##STR3## where R.sub.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: December 7, 1982
    Assignee: Dr. Karl Thomae Gesellschaft mit beschrankter Haftung
    Inventors: Bernd Wetzel, Eberhard Woitun, Wolfgang Reuter, Roland Maier, Uwe Lechner, Hanns Goeth
  • Patent number: 4362738
    Abstract: Compounds of the formula ##STR1## wherein each X, which may be identical or different from the other X, is oxygen or imino;R.sub.1 is hydrogen, fluorine, chlorine or bromine;R.sub.2 and R.sub.3, which may be identical or different from each other, are each hydrogen; unsubstituted or mono-substituted alkyl of 1 to 6 carbon atoms, where the substituent is phenyl or dialkylamino with 1 to 3 carbon atoms in each alkyl moiety; pyridyl; or cycloalkyl of 5 to 7 carbon atoms;R.sub.2 and R.sub.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: December 7, 1982
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Johannes Keck, Gerd Kruger, Helmut Pieper, Klaus Noll, Gunther Engelhardt, Norbert Promberger, Rainer Zimmermann
  • Patent number: 4362882
    Abstract: 4-methyl-2,5-dioxabicyclo-[4,4,0]-decan-3-one having the formula ##STR1## its synthesis, its use as a perfumery agent and as an olefactant component in perfume compositions and as an odorant agent for technical products.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: December 7, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ulf-Armin Schaper, Klaus Bruns
  • Patent number: 4361546
    Abstract: A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, were the coating consists of a water-insoluble film-former, a water-soluble polymer and eventually an acid-insoluble polymer incorporated therein.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: November 30, 1982
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Herbert Stricker, Bernhard Freund, Heribert Harwalik, Karl L. Rominger, Siegfried Darda, Volkmar Haselbarth, Dietrich Arndts, Wolf D. Bechtel, Gerhard Bozler, Rolf Brickl, Peter Gruber
  • Patent number: 4361563
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen; trifluoromethyl; alkyl of 1 to 11 carbon atoms; cycloalkyl of 3 to 7 carbon atoms; hydroxyl; alkoxy of 1 to 6 carbon atoms; mercapto; (alkyl of 1 to 6 carbon atoms)-mercapto; phenyl-(alkyl of 1 to 3 carbon atoms); phenyl; or mono-, di- or tri-substituted phenyl, where the substituents, which may be identical to or different from each other, are each halogen, alkyl of 1 to 4 carbon atoms, (alkyl of 1 to 6 carbon atoms)-sulfinyl, hydroxyl, alkoxy of 1 to 6 carbon atoms, mercapto or (alkyl of 1 to 6 carbon atoms)-mercapto;R.sub.2 is hydrogen, alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms or phenyl-(alkyl of 1 to 3 carbon atoms); andR.sub.3 is alkyl of 1 to 6 carbon atoms; optically active antipodes thereof; and non-toxic, pharmaceutically acceptable acid addition salts of said compounds or of said optically active antiposed. The compounds are useful as cardiotonics and antithrombotics.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: November 30, 1982
    Assignee: Dr. Karl Thomae Gesellschaft mit Beschrankter Haftung
    Inventors: Volkhard Austel, Joachim Heider, Wolfgang Eberlein, Willi Diederen, Walter Haarmann
  • Patent number: 4361659
    Abstract: This invention relates to an adhesive composition based upon an aqueous solution of alkali metal silicate with a content of powdered inorganic filler and optionally organic polymer, which comprises an aqueous alkali metal silicate solution containing:(a) from about 25 to 50 percent by weight of dispersed crystalline calcium carbonate;(b) from about 2 to 10 percent by weight of quartz powder with a particle size of up to about 15 .mu.m and a specific surface area of at least about 3.5 m.sup.2 /gm; and(c) from 0 to about 24 percent by weight of a 50 percent by weight stable, aqueous dispersion of an alkali-resistant organic polymer based upon acrylate, styrene/acrylate, styrene/butadiene, or a mixture thereofbased on the weight of the total composition.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: November 30, 1982
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Friedemann, Bernhard Laut
  • Patent number: 4361575
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl, hydroxyl or amino;R.sub.4 is straight or branched alkyl of 1 to 5 carbon atoms, allyl or benzyl;R.sub.5 is methyl, ethyl or 2-dimethylamino-ethyl; andn is 0 or 1;and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bradycardiacs.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: November 30, 1982
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Helmut Stahle, Herbert Koppe, Werner Kummer, Walter Kobinger, Christian Lillie, Ludwig Pichler, Wolfgang Hoefke, Wolfram Gaida