Patents Represented by Law Firm Sprung, Felfe, Horn, Lynch & Kramer
  • Patent number: 4297107
    Abstract: A fuel especially a fuel for an automobile, internal combustion engine or a diesel engine comprising a hydrocarbon water and emulsifier wherein the emulsifier is a non-ionic emulsifier and comprises the addition product of ethylene oxide or propylene oxide and a carboxylic acid amide with 9 to 21 carbon atoms.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventor: Gunther Boehmke
  • Patent number: 4297366
    Abstract: 2,2-Dimethyl-3-(2-fluoroalkyl-2-oxy-vinyl)-cyclopropane-carboxylic acid esters of the formula ##STR1## in which R.sup.1 is fluoroalkyl,R.sup.2 is an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, andR.sup.3 is a radical customary in the alcohol component of pyrethroidswhich possess arthropodicidal properties. New intermediates therefor are also shown.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Bernhard Homeyer, Wolfgang Behrenz, Wilhelm Stendel
  • Patent number: 4297468
    Abstract: The invention relates to new cross-linked copolymers containing carboxyl groups and especially useful as thickening agents for aqueous and organic solvents, which copolymers contain(A) 20 to 100% by weight of olefinically unsaturated carboxylic acids,(B) 0 to 80% by weight of at least one mono-olefinically unsaturated monomer copolymerizable with the components A and C, and(C) 0.1 to 4% by weight, calculated on the total quantity of monomers, of allyl monomer of the general formula ##STR1## in which n=0, 1 or 2,m=1, 2 or 3, wherein n+m=3,R.sub.1 =hydrogen, or an alkyl, alkoxyalkyl, haloalkyl, cycloalkyl, aryl, alkaryl, aralkyl or alkenyl radical, andR.sub.2 and R.sub.3, which may be the same or different, each represents hydrogen or an allyl, alkyl, cycloalkyl, aryl, aralkyl or alkaryl radical,wherein at least two of the radicals R.sub.1, R.sub.2 and R.sub.3 must be an allyl radical or a substituted allyl radical.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: October 27, 1981
    Assignee: Chemische Fabrik Stockhausen & Cie
    Inventors: Miroslay Chmelir, Kurt Dahmen
  • Patent number: 4297330
    Abstract: In a process of selectively desulfurizing gases which contain hydrogen sulfide and carbon dioxide comprising scrubbing the gases with an aqueous potassium carbonate solution under superatmospheric pressure and at temperatures of about 100.degree. C., regenerating the laden scrubbing solution and recycling the regenerated scrubbing solution, the improvement wherein the gases to be purified are scrubbed with an aqueous potassium carbonate solution so as to maintain a mass ratio of 1.0 to 3.0 vals (gram equivalents) of alkali in the solution per mole of CO.sub.2 and H.sub.2 S in the gases to be purified, the laden scrubbing liquor is subsequently regenerated by being stripped with a gas in which a CO.sub.2 partial pressure above 0.2 bar is maintained, and the so regenerated scrubbing solution is recycled.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: October 27, 1981
    Assignee: Metallgesellschaft AG
    Inventors: Johann Schlauer, Georg Kempf, Alexander Doerges
  • Patent number: 4297151
    Abstract: A method of cutting a cast strand into longitudinal sections is disclosed. The method comprises initially severing said strand transversely to form a slab, transporting said slab to a first longitudinal cutting means where it is longitudinally cut. The strand is cut transversely a second time to form a second slab which is transported to a second longitudinal cutting means where it is longitudinally cut.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: October 27, 1981
    Assignee: Thyssen Aktiengesellschaft vormals August Thyssen-Hutte
    Inventors: Erich Hoffken, Werner Kleine-Kleffmann, Rolf Bertram, Karl-Heinz Abele, Gunter Michalski
  • Patent number: 4297281
    Abstract: A process for halogenating copper phthalocyanine to a halogen content of about 14 to about 15.5 halogen atoms per CuPc molecule, in an aluminium chloride/sulphuryl chloride mixture which contains 8 to 25% by weight, relative to the amount of AlCl.sub.3, of an anhydrous alkali metal halide, characterized in that the AlCl.sub.3 /SO.sub.2 Cl.sub.2 mixture contains 70 to 150% by weight, relative to the amount of AlCl.sub.3, of sulphuryl chloride and the halogenation is carried out under an excess pressure of 1 to 20 bars.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventor: Diether Wessling
  • Patent number: 4296762
    Abstract: A smokable product based on cellulose and combustion-modifying substances, containing(a) 0.1-10% by weight, based on the total weight of the smokable product, of finely divided solids, the average particle diameter of which is less than 2.mu., in a distribution which is heterogeneous over the cross-section of the smokable product, with an enrichment in or on the surfaces, and(b) 0.5-15% by weight, based on the total weight of the smokable product, of salts of monobasic or polybasic carboxylic acids. The product being prepared by saturating, spraying or coating a combustible, prefabricated material which is based on cellulose and optionally contains fillers customarily used in smokable products and which can be used as a smokable product with a dispersion of solids, the average particle diameter of which is less than 2.mu., in a solution of salts of monobasic or polybasic carboxylic acids.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Theobald Eicher, Friedemann Muller
  • Patent number: 4297395
    Abstract: A cobalt-doped, acicular ferrimagnetic iron oxide having an FeO content of about 16 to 24%, by weight, and a cobalt content of about 0.7 to 2.4%, by weight, the coercive force amounting to at least about 425 Oe+175 Oe/%, by weight, of Co is produced by precipitating and oxidizing a cobalt-containing aqueous iron (ii) salt solution, reducing the precipitate to Fe.sub.3 O.sub.4, partially reoxidizing to adjust the FeO content and heat treating under inert conditions at a temperature from about 600.degree. to 800.degree. C.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunter Buxbaum, Heinrich-Christian Schopper, Lutz Leitner, Volker Hahnkamm
  • Patent number: 4297512
    Abstract: An improved process for the preparation of triethylamine by gas phase catalytic hydrogenation of acetonitrile is disclosed, the improvement residing in employing as the catalyst a supported noble metal of Group VIII of the periodic system catalyst where the support comprises lithium aluminum spinel. The process can be carried out in the presence of up to 5% by weight of monoethylamine and/or diethylamine. The process is conducted at 80.degree.-115.degree. C. and under a pressure of 1 to 60 bars.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: October 27, 1981
    Assignee: EC Erdolchemie GmbH
    Inventors: Klaus Mainusch, Bernhard Schleppinghoff, Klaus Munter
  • Patent number: 4297103
    Abstract: Process for the continuous one-bath dyeing of pile fabrics made of acrylic fibres in the pile with a cotton base fabric by the pad-steam process with basic and substantive dyestuffs, characterized in that salts of alkyl sulphates of the general formulaR--O--SO.sub.3.sup..crclbar. M.sup..sym.in whichR represents a straight-chain or branched alkyl radical with 10-16 carbon atoms andM represents an alkali metal, alkaline earth metal, ammonium, alkylammonium or alkanolammonium ion,are used as auxiliaries in the dyebath.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo-Winfried Hendricks, Klaus Wollny
  • Patent number: 4297271
    Abstract: The invention provides a diagnostic agent for the detection of occult blood in feces comprising hydrogen peroxide and, as a chromogen, guaiaconic acid A, optionally with a stabilizer. The invention provides, as a novel substance, guaiaconic acid A having a specific extinction E.sub.1 cm.sup.1% at 600 nm of at least 200, determined by the reaction with peroxidase and hydrogen peroxide, having infra-red bands at1600 cm.sup.-1 (m);1505 cm.sup.-1 (v.s.);1206 cm.sup.-1 (s;b);1115 cm.sup.-1 (m);1025 cm.sup.-1 (m); and1200 cm.sup.-1 (s;b)and having an R.sub.F value of 0.45 (toluene/dioxan/glacial acetic acid; 90:25:10 v/v/v).
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: October 27, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Werner Guthlein, Hans Wielinger, Walter Rittersdorf, Wolfgang Werner
  • Patent number: 4297278
    Abstract: Polyazo dyestuffs of the formula ##STR1## wherein D denotes the radical of a diazo component andn denotes the number 1 or 2,and their use for dyeing and printing fibre materials containing amino groups or hydroxyl groups, and leather. The resulting dyeings have good properties under wet conditions and when in use.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventor: Horst Nickel
  • Patent number: 4297502
    Abstract: An aromatic bisazomethine prepared from the disubstituted benzidines and aromatic aldehydes, characterized by the general formula ##STR1## wherein each R=COOCH.sub.3, COOC.sub.2 H.sub.5, COOH, CH.sub.2 Cl, CHCl.sub.2, CH.sub.2 Br, CCl.sub.3, Cl or Br andeach R'=Cl, OCH.sub.3 or CH.sub.3.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: October 27, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Hans-Joachim Herrmann, Gunther Meyer, Klaus-Dieter Steffen
  • Patent number: 4295876
    Abstract: Novel N-(2,5-diazolyl)-alkyl-halogenoacetanilides of the general formmula ##STR1## in which A represents oxygen, sulphur or the grouping >NR,whereinR represents alkyl,R.sup.1 represents hydrogen, alkyl or alkoxy,R.sup.2 represents hydrogen, alkyl, alkoxy or halogen,R.sup.3 represents hydrogen, alkyl, alkoxy or halogen,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents hydrogen, alkyl, alkoxy, alkylthio, dialkylamino, halogen, cyano or alkoxycarbonyl andZ represents halogen, and acid addition salts and metal salt complexes thereof are outstandingly effective as herbicides.Furthermore novel N-(2,5-diazolyl)-alkyl-anilines of the general formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A have the above-mentioned meaning.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: October 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jorg Stetter, Klaus Ditgens, Rudolf Thomas, Ludwig Eue, Robert R. Schmidt
  • Patent number: 4295852
    Abstract: Polyamide fibre materials are dyed with acid dyestuffs and/or metal complex dyestuffs in the presence of compounds of the formula ##STR1## in which R represents a C.sub.4 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy, phenyl, cyclohexyl or C.sub.2 -C.sub.10 -hydroxyalkoxy radical,R.sub.1 represents hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,n represents an integer from 1 to 10 andm represents a number from 1 to n+1,or water-soluble salts thereof.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: October 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Walz, Joachim Fiegel
  • Patent number: 4296241
    Abstract: A process for the preparation of a 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid or derivative of the formula ##STR1## in which R is hydrogen, alkali metal, ammonium, an equivalent of an alkaline earth metal, alkyl, or a radical customary in the alcohol part of pyrethroids,comprising reacting a 3-formyl-2,2-dimethyl-cyclopropane-1-carboxylic acid derivative of the formula ##STR2## with a dichloromethane derivative of the formula ##STR3## in which R.sup.1 and R.sup.2 each independently is alkyl, phenyl, alkoxy or phenoxy, or together are alkanediyl or alkanedioxy,in the presence of a base at a temperature between about -50.degree. and +50.degree. C. The products are intermediates for the preparation of esters of pyrethroid-like insecticidal activity.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: October 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hellmut Hoffmann, Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel
  • Patent number: 4295382
    Abstract: An irregular-motion mechanism comprising two series-connected double cranks each comprising a driving link and a driven link connected thereto by a connecting rod, the driving link of the first double crank and the driven link of the second double crank being mounted for rotation about a common axis, the driven link of the first double crank being rigidly joined to the driving link of the second double crank, the driven link of the first double crank forming an obtuse angle with the driving link of the second double crank the ratio of their lengths being about 2:3 with a length-ratio range of about 3:2 to 5:4 for the driving link of the first double crank and the driven link of the second double crank, and with a length ratio of about 1:1 for the connecting rods of the first and second double cranks. The device provides a considerable increase in power in the extreme positions of irregularity because of the obtuse angle.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: October 20, 1981
    Assignee: Jagenberg-Werke AG
    Inventors: Bernd Lollert, Heinrich Risse
  • Patent number: 4296424
    Abstract: In a compound semiconductor device such as a magnetoresistance element or Hall element having a compound semiconductor portion such as of InSb and an electrode portion, a portion of the compound semiconductor portion is exposed to energy irradiation to be converted into an alloy state or amorphous state and rendered conductive to form the electrode portion. The portion rendered conductive is contiguous to and in ohmic contact with the unexposed portion of the compound semiconductor and used as a shorting bar electrode or an external lead bonding pad.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: October 20, 1981
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Ichiro Shibasaki, Kaoru Ohmura, Takeo Kimura
  • Patent number: 4296047
    Abstract: In the preparation of a phosphoric acid alkyl ester dichloride by reacting phosphorus oxychloride with an aliphatic alcohol according to the equation ##STR1## in which R represents C.sub.1 -C.sub.5 -alkyl,the improvement which comprises carrying out the reaction continuously at a temperature of about 10.degree. to 50.degree. C. using an excess of phosphorus oxychloride of about 5 to 40%. The excess phosphorus oxychloride is reacted with the alcohol by continuous mixing, the reaction mixture is cooled, substantially all the hydrogen chloride formed is then separated off in a preliminary degassing stage, the reaction mixture is worked up in a distillation column, the unreacted phosphorus oxychloride and any diluent is separated off over the top and condensed, the condensate is recycled to the reaction and the corresponding alkyl ester dichloride is removed continuously as the bottom product.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: October 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Julius Schmidt, Friedrich Schmidt, Peter Siegle, Gert Hansen
  • Patent number: 4295502
    Abstract: A method and an apparatus for the elimination of foam above the level of the liquid in a container. The foam is collapsed by the application of high frequency wave radiation thereto.
    Type: Grant
    Filed: October 23, 1979
    Date of Patent: October 20, 1981
    Assignee: Jagenberg Werke AG
    Inventor: Erwin Matzner