Patents Represented by Law Firm Sprung, Felfe, Horn, Lynch & Kramer
  • Process for the preparation of acyl cyanides
    Patent number: 4302583
    Abstract: Novel process for the preparation of a monomeric acyl cyanide of the general formula ##STR1## in which R represents optionally substituted alkyl with up to 8 carbon atoms, optionally substituted cycloalkyl with 3 to 12 carbon atoms, optionally substituted aryl or an optionally substituted 5-membered or 6-membered heterocyclic radical, which optionally can be fused with a benzene ring,which process comprises heating the corresponding dimeric acyl cyanide of the general formula ##STR2## in which R has the meaning stated above, to a temperature of from 50.degree. to 300.degree. C. in the presence of a compound having a basic reaction and rapidly removing the monomeric acyl cyanide (I) formed from the reaction mixture.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: November 24, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt Findeisen, Karl-Heinz Linker
  • Dental materials which are opaque to X-rays and are based on organic plastics in paste form
    Patent number: 4302376
    Abstract: The invention provides dental materials which are opaque to X-rays and are based on organic plastics in paste form, which comprises (a) a polymerizable binder, (b) a crosslinked bead polymer and (c) an X-ray contrast medium. The materials can also contain as an additional component (d) a fine-particled inorganic filler which is not opaque to X-rays. The materials are useful, inter alia, for filing dental cavities.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: November 24, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Walkowiak, Wolfgang Podszun, Bernhard Leusner, Carlhans Suling, Hans H. Schulz
  • Process for the homo- and co-polymerization of .alpha.-olefins
    Patent number: 4302567
    Abstract: A catalyst for the polymerization of olefins is described wherein a titanium(IV) compound is reduced with an organoaluminum compound in the presence of atactic poly-.alpha.-olefin. Polymerization with the catalyst is also disclosed.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: November 24, 1981
    Assignee: Ruhrchemie Aktiengesellschaft
    Inventors: Mufit Bahadir, Wolfgang Payer
  • Combating pests with 2,3-dihydro-2,2-dimethyl-7-benzofuranyl-N-carboxylated-N-methyl-carbamat es
    Patent number: 4302466
    Abstract: 2,3-Dihydro-2,2-dimethyl-7-benzofuranyl N-carboxylated-N-methyl-carbamates of the formula ##STR1## in which R is alkoxy with 1-10 C atoms, alkenoxy or alkynoxy with 5-7 C atoms each optionally substituted by halogen or by a radical of the formula--X--R.sup.1 or --NR.sup.2 R.sup.3 ; or NR.sup.2 R.sup.3 ;X is an oxygen or sulphur atom or a sulphoxide or sulphone group,R.sup.1 is hydrogen or alkyl with 1-4 C atoms,R.sup.2 and R.sup.3 independently is hydrogen, alkyl radical with 1-18 C atoms, alkenyl with up to 8 C atoms, or together are ##STR2## and W is hydrogen or alkyl wth 1-4 C atoms,which possess arthropodicidal and nematocidal properties.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: November 24, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Heywang, Alfons Hartmann, Ingeborg Hammann, Bernhard Homeyer
  • Ribbon cartridge
    Patent number: 4301957
    Abstract: A ribbon cartridge of the type having a body portion wherein an endless ribbon is contained in a fan-folded condition during use, includes a removable partition which is extendable entirely across and through the body portion between the inlet and outlet apertures thereof for separating the body portion into a first compartment at the outlet aperture side wherein the ribbon can be contained in a fan-folded condition prior to the first use of the cartridge and the second compartment at the inlet aperture side and including the entire drive aperture of the cartridge.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: November 24, 1981
    Inventor: Sydney Shore
  • Apparatus for metering and/or distributing liquid media
    Patent number: 4302338
    Abstract: Apparatus for metering and/or distributing liquid media comprising a substantially horizontal manifold and a plurality of generally vertical discharge conduits which depend from said manifold, said discharge conduits comprising discharge tubes which are open at both ends and are liquid-tightly fitted in and depend from said manifold, each of said tubes having a top end disposed in an upper portion of the manifold and at least one lateral opening disposed above a joint between said tube and the manifold and within said manifold.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: November 24, 1981
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Rainer Pfohl, Martin Grtischke, Jurgen Schubert
  • Burner holder with quick release and lockup mechanism
    Patent number: 4302179
    Abstract: A furnace firing system including a furnace port, a burner including a nozzle at one end received in the port and a mounting for the burner to position the nozzle in the port at a desired firing angle. The burner comprises an elongated body having a frustoconical locating member fixedly mounted therearound adjacent the other end of the burner and tapering towards the one end. The mounting is connected to the burner solely at the locating members via a receiving member having the inner surface thereof configured to closely receive the locating member. The locating member is releasably retained in the receiving member and the burner is pivoted about a pivot axis disposed between the locating member and the nozzle and substantially adjacent the nozzle by a pivot arm extending between the pivot axis and the receiving member and connected to the receiving member at one end.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: November 24, 1981
    Assignee: Laidlaw, Drew & Co. Ltd.
    Inventor: Richard S. Pont
  • Sphygmomanometer
    Patent number: 4300573
    Abstract: Blood pressure measuring device having an inflatable cuff, a buckle and a sound pickup whose blood-pressure-related signals are either directly recognized and correlated with a pressure readout or processed by an electric circuit and delivered to at least one readout means giving the blood pressure values. The buckle forms one unit which houses the readout means and the electrical circuit for the conversation of the sound signals.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: November 17, 1981
    Assignee: Clinocon International GmbH
    Inventors: Klaus Rebbe, Berd Rosicke, Klaus Wellmann
  • Alkali metal complex compounds
    Patent number: 4301081
    Abstract: The invention includes novel alkali metal complex compounds (and processes for their preparation) which are useful, inter alia for the hydrogenation of alkali metals at room temperature or below room temperature to form hydrides or nitrides.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: November 17, 1981
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Borislav Bogdanovic
  • Fluorescent dyestuffs
    Patent number: 4301091
    Abstract: Fluorescent dyestuffs of the formula ##STR1## wherein: R.sub.1 and R.sub.2 independently of one another represent hydrogen, a salt-forming cation, an alkyl radical with 1 to 8 carbon atoms or an aralkyl radical which is optionally substituted by non-chromophoric groups,R.sub.2 to R.sub.5 independently of one another represent hydrogen, alkyl, trifluoromethyl, alkoxy, aralkoxy, alkenyloxy, halogen or the carboxyl, cyano, alkylsulphonyl, arylsulphonyl, carboxamide or sulphonamide group or a carboxylic acid ester group, m and n independently of one another denote 0, 1 or 2 and the sum of m+n must be at least 2, and o, p, q and r independently of one another represent 0, 1 or 2.processes for their preparation, their use for whitening organic materials and a process for the production of a coherent laser emission using the fluorescent dyestuffs according to formula I.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: November 17, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Schieder, Helmut Telle, Roderich Raue, Wolfgang Brinkwerth
  • Hydroxyethyl-azole compounds, their production and their medicinal use
    Patent number: 4301166
    Abstract: The invention relates to hydroxyethyl-azole compounds and methods for their preparation. Also included in the invention are compositions containing said hydroxyethyl-azole compounds and methods for the use of said compounds and compositions as antimycotic agents.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: November 17, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erik Regel, Karl H. Buchel, Ingo Haller, Manfred Plempel
  • Oriented polystyrene support for photopolymerizable element
    Patent number: 4301230
    Abstract: A process for producing an image which comprises the steps of:(1) applying to the surface of a substrate the surface of a photosensitive layer, the other surface of the photosensitive layer being adhered to a substantially transparent film support which is soluble or dispersible in a developer consisting essentially of a liquid capable of substantially dissolving or dispersing therein the areas of the layer other than those having a polymeric image produced by imagewise exposure in the step (2) below;(2) exposing the photosensitive layer, imagewise, to actinic radiation to form a polymeric image in the layer; and(3) washing away with the developer the film support and the areas of the layer other than those having the polymeric image to form an image of a polymeric material on the substrate.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: November 17, 1981
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tadashi Taguchi, Noboru Fujikawa, Mitsuo Kohno, Katsumi Yoshitake, Kunio Satake
  • Method of preparing benzyl alcohols by decarbonylation of formic acid esters
    Patent number: 4301088
    Abstract: A method for preparing benzyl alcohols or substituted benzyl alcohols is disclosed by decarbonylation of formic acid esters of benzyl alcohols or ring substituted benzyl alcohols, the decarbonylation being carried out in the presence of a catalyst.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: November 17, 1981
    Assignee: Dynamit Nobel AG
    Inventor: Gunther Bernhardt
  • Rapid test for ascorbic acid determination
    Patent number: 4300905
    Abstract: Compositions and methods for rapidly determining ascorbic acid in aqueous solutions, consisting of an absorbent carrier containing 2,18-phosphomolybdic acid, an aliphatic hydroxycarboxylic acid buffer to adjust the test to pH 2.5 to 5.0, and an alkali chlorate; process for the preparation of such tests.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: November 17, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Manfred Bleisteiner, Walter Rittersdorf, Hans Wielinger
  • Antioxidant for carbonaceous material and method
    Patent number: 4301026
    Abstract: Novel metal salts of boric acid esters of saccharides have been found to be extremely useful for imparting a high oxidation-resistance to carbonaceous materials. The metal salts of the boric acid esters according to the present invention are water-soluble and can be easily formulated into aqueous solutions thereof. Therefore, the treatment of carbonaceous materials can be easily, simply done using an aqueous solution of the present metal salt of the boric acid ester.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: November 17, 1981
    Inventors: Teruhisa Kondo, Jiro Ishiguro, Nobuatsu Watanabe
  • Control reagent for heparin activity determination
    Patent number: 4301028
    Abstract: A control reagent for heparin activity determination comprising20 to 1500 USP heparin,2000 to 30000 IU antithrombin III,0.15 to 1.5 millimoles serum albumin,0.005 to 0.05 mole ethylenediaminetetraacetic acid sodium salt,0 to 0.4 mole saccharose,2000 to 20000 U aprotinin, andbuffer substance, pH 6.5 to 7.5,per liter of control reagent solution.
    Type: Grant
    Filed: January 9, 1980
    Date of Patent: November 17, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Knut Bartl, Joachim Ziegenhorn, Peter Wunderwald, Klaus Beaucamp, Helmut Lill
  • Silica gels incorporating insolubilized reagents
    Patent number: 4301027
    Abstract: A dried silica gel containing a reagent in insolubilized form which reagent is normally soluble, especially a dried silica gel containing an insolubilized form of a normally soluble colorimetric analytical agent and a method of preparing such dried silica gel by hydrolyzing a silane having from 1 to 4 alkoxy groups in a homogeneous phase in the presence of a reagent which is normally soluble in a solvent, recovering the resultant gel and drying the same.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: November 17, 1981
    Assignee: Dynamit Nobel AG
    Inventors: Alfred Blumcke, Peter Fischer, Hans-Joachim Vahlensieck
  • Shaped dental articles
    Patent number: 4300886
    Abstract: The invention relates to bead polymers, useful in the provision of dental articles and made by bead polymerizing a diamine-lengthened polyurethane and a methacrylate. Also included in the invention are the dental articles made using said bead polymers.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: November 17, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Carlhans Suling, Gerhard Balle, Bernd Leusner, Hans-Hermann Schulz, Michael Walkowiak
  • Composite fibre material articles with inlays and a method of producing them
    Patent number: 4300321
    Abstract: By fitting cores in unidirectionally reinforced composite fibre material articles, it is possible to utilize their high tensile strength in the fibre direction far more because they can be anchored better without special outlay. The cross-section of the cores have to change in the fibre direction and it is important that the fibres run in a clinging fashion on the core and that it is completely embedded therein. The composite fibre material articles provided with cores can be produced continuously. The central region of a glass fibre bundle widens in an impregnation bath, the core inlay is introduced into this region and the fibres are then pressed against the core.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 17, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lothar Preis, Dieter Jehle
  • Azo reactive dyestuffs
    Patent number: 4299764
    Abstract: Dyestuffs of the formula ##STR1## wherein R, T.sub.1, R.sub.1, R.sub.2, NR.sub.1 R.sub.2, T.sub.2, Z, B and. . . have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibers, filaments and fabrics of wool, silk, synthetic polyamide fibers and polyurethane fibers, and for the wash-fast dyeing and printing of natural or regenerated cellulose.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: November 10, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventor: Horst Jager