Patents Represented by Law Firm Connolly & Hutz
  • Patent number: 5914431
    Abstract: The invention relates to the synthesis of bisphenols from monophenols and carbonyl compounds such as aldehydes and ketones using concentrated mineral acids such as hydrochloric acid and/or hydrogen chloride gas as acid catalysts and a mercaptan as cocatalyst, which is fixed by an ion pair bond to a matrix that is insoluble in the reaction medium.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: June 22, 1999
    Assignee: Bayer AG
    Inventor: Gerhard Fennhoff
  • Patent number: 5914079
    Abstract: In the treatment of a sealable film surface by means of a flame, a film is passed over a cooling roll (4). A burner (1) is mounted above this cooling roll (4). An unpolarized flame is produced by means of this burner (1). The film is cooled by means of the cooling roll (4) and, if required, by means of additional cooling apparatuses so that the temperature of the flame-treated film surface on leaving the cooling roll (4) is not more than 25.degree. C.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: June 22, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Herbert Peiffer, Robert Schmidt, Detlef Busch, Frank Ernst
  • Patent number: 5914369
    Abstract: The reaction of polyvinyl acetate in methanolic solution with methanolic sodium hydroxide at a temperature between 10.degree. C. and 65.degree. C. with stirring at a stirring speed of from 5 to 200 rpm with a stirrer which has a ratio of stirrer diameter (d) to container diameter (D) in the range of 0.6<d/D<0.999 leads to a homogeneously hydrolyzed polyvinyl alcohol.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: June 22, 1999
    Assignee: Clariant GmbH
    Inventors: Robert Fuss, Hans-Karl Mueller
  • Patent number: 5914376
    Abstract: Catalyst for the polymerization of olefins, process for the preparation thereof, and the use thereof.The present invention relates to a heterogeneous catalyst for the polymerization of olefins, comprising the product of the reaction of an aluminoxane which is insoluble in aliphatic and aromatic hydrocarbons, with at least one metallocene.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 22, 1999
    Assignee: Targor GmbH
    Inventors: Hans-Friedrich Herrmann, Bernd Bachmann, Volker Dolle, Walter Spaleck
  • Patent number: 5913344
    Abstract: A process for automatic filling with products, particularly of gas into gas cylinders, utilizes electronic comparison of the data stored in a data carrier located on the tank with the actually measured weight of the tank makes it possible to determine the degree of residual filling in the tank as well as to ascertain whether the tank weight is too low which, under certain circumstances, can give rise to safety risks and, in response, to either remove the tank from the filling process or else to fill it.The process and the device function fully automatically, so that it is possible to save personnel costs.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: June 22, 1999
    Assignee: Messer Griesheim GmbH
    Inventors: Hans-Juergen Wronski, Siegbert Schmidt
  • Patent number: 5911355
    Abstract: The invention relates to a method for mechanically removing solder beads (14) from the surface of printed circuit boards (10) directly after they pass through the solder flow during flow soldering of printed circuit boards in a soldering plant. In order to ensure that the solder beads are mechanically removed without damaging the printed circuit boards, the solder beads (14) are mechanically removed by means of at least one jet (50) of cold gas directed onto the surface.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: June 15, 1999
    Assignee: Messer Greishiem
    Inventors: Jens Tauchmann, Tilman Schwinn, Heinz-Olaf Lucht
  • Patent number: 5911741
    Abstract: The invention relates to a process and an apparatus for pelleting materials capable of forming drops, in which the materials to be pelleted are added dropwise into a coolant liquid bath (5), preferably a liquified gas, hardened and are kept separate on a vibratory conveyor unit (7) with supply of vibratory energy and are completely frozen solid, exploiting the temperature of the cold gas.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: June 15, 1999
    Assignee: Buse Gase GmbH & Co.
    Inventors: Gunther Weyermanns, Stefan Zerwas
  • Patent number: 5910624
    Abstract: Disperse Dyestuff Mixtures comprising C.I. Disperse Red 82 of the formula (I) ##STR1## and one or more dyestuffs which differ therefrom, of the formula (II) ##STR2## wherein D denotes the radical of a diazo component of the formula ##STR3## or D denotes the radical of a diazo component from the group consisting of 5,6-dichlorobenzothiazol-2-yl, 6,7-dichlorobenzothiazol-2-yl, 6-nitro-benzothiazol-2-yl or 5-nitrothiazol-2-yl, and the other substituents have the meaning given in the description,are stable to spray-drying and have outstanding use properties, in particular in the dyeing of hydrophobic fiber materials.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: June 8, 1999
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Klaus-Wilfried Wanken, Karl-Ulrich Buhler
  • Patent number: 5910534
    Abstract: Stable, aqueous dispersions of copolymers based on conjugated, aliphatic dienes and vinyl aromatic compounds are prepared by carrying out the emulsion polymerisation in the presence of water and emulsifiers and in the presence of water-soluble initiators, with 15 to 85 wt. % of the total of the emulsifiers used being added within the time in which up to 40% of the overall conversion of the components used is attained, and with 1 to 50% of the carboxylic acid groups contained in the additionally used ethylenically unsaturated carboxylic acids being neutralized by the addition of bases during the emulsion polymerisation.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: June 8, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Ostrowicki, Joachim Waldi, Dennis-Wayne Jones
  • Patent number: 5908741
    Abstract: A photographic silver halide material in which the silver halide emulsion layer of at least one silver halide emulsion layer is stabilized with a compound of the formula (I):Ar--Se--X (I)in whichAr means a carbocyclic or heterocyclic aromatic group which has an electron-attracting grouping in o-position relative to the Se andX means a further substituted heteroatom,exhibits a smaller reduction in sensitivity, in particular under tropical conditions of storage.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: June 1, 1999
    Assignee: Agfa-Gevaert AG
    Inventors: Peter Bergthaller, Hans-Ulrich Borst, Johannes Willsau, Ralf Buscher, Peter Bell
  • Patent number: 5908679
    Abstract: The invention relates to a high strength pipe of ethylene polymer having a bimodal molecular weight distribution. Such pipe has a stress cracking resistance of .gtoreq.1400 h, a fracture toughness of .gtoreq.7 mJ/mm.sup.2 and a modulus of creep in flexure, measured according to DIN 54852-Z4, of .gtoreq.1100 N/mm.sup.2. The pipe according to the invention is produced from an ethylene polymer in which the ratio of weight of the low molecular weight fraction to the weight of the higher molecular weight fraction is in the range from 0.5 to 2.0 and which has a melt flow index MFI.sub.5/190.degree. C. of .ltoreq.0.35 g/10 min. It is particularly suitable for the transportation of gases and water.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: June 1, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Joachim Berthold, Ludwig Bohm, Werner Breuers, Johannes Friedrich Enderle, Manfred Fleissner, Rainer Lecht, Hartmut Luker, Ulrich Schulte, Heiner Bromstrup
  • Patent number: 5908904
    Abstract: Catalysts consisting ofA) an alcoholate of the rare earths, a carboxylate of the rare earths, a complex compound of the rare earths with diketones and/or an addition compound of the halides of the rare earths with an oxygen or nitrogen donor compound,B) an aluminium trialkyl, a dialkyl aluminium hydride and/or an alumoxane,C) another Lewis acid andD) an inert, particulate inorganic solid with a specific surface of greater than 10 m.sup.2 /g (BET) and a pore volume of 0.3 to 15 ml/gare eminently suitable for the polymerization of conjugated dienes, more particularly butadiene, in the gas phase.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: June 1, 1999
    Assignee: Bayer AG
    Inventors: Gerd Sylvester, Hugo Vernaleken
  • Patent number: 5906255
    Abstract: In a motor vehicle transmission multiple-disc clutch assembly, a waved ring-shaped spring is provided within an annular groove formed in the clutch piston held within the clutch housing. The waved spring preferably is formed from spring steel and has five upwardly directed segments and five downwardly directed segments. When inserted in the annular groove and not flexed or compressed, a portion of the upwardly directed segments extends above the upper surface of the outer rim of the clutch piston by between about 0.025 to 0.040 inch. The waved spring opposes axial forces exerted on the clutch piston and the clutch pack (plurality of clutch plates) at a rate of 200 to 240 psi for the first 0.030 inch compression until it is substantially flattened with the upwardly directed segments to a height even with the outer rim of the clutch piston. The waved spring is free of radially extending projections or tabs and is movable with relation to the clutch piston.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: May 25, 1999
    Assignee: Deltrans, Inc.
    Inventor: Edward Lee
  • Patent number: 5906961
    Abstract: An adjuvant composition containing at least an alkanolamide surfactant and optionally other surfactants or pesticides or formulation aids. The surfactant preferably is reacted with a fatty acid. The process preferably takes places without the use of alkoxylation.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: May 25, 1999
    Assignee: Helena Chemical Company
    Inventors: Johnnie R. Roberts, Greg Volgas
  • Patent number: 5907029
    Abstract: The invention relates to polyarylene sulfoxides which are soluble in polar organic solvents, a process for their preparation and their use. Soluble polyarylene sulfoxides can be prepared by homogeneous partial oxidation of polyarylene sulfides. The homogeneous partial oxidation is achieved by dispersing the polyarylene sulfide in finely divided form in a solvent stable to oxidation, slowly adding a mild oxidizing agent and terminating the oxidation as soon as the polymer chains have reached a uniform degree of oxidation. The partially oxidized polyarylene sulfoxides are suitable for the production of coatings and shaped articles, such as fibers, membranes, films and nonwovens.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: May 25, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Stefan Disch, Michael Haubs, Axel Schonfeld, Helmut Scheckenbach
  • Patent number: 5905133
    Abstract: The present invention relates to a process for the continuous production of thermoplastically processable polyurethanes having improved processing behaviour, wherein in a multistep reactionA) one or more linear hydroxyl-terminated polyols a) having a molecular weight of from 500 to 5000 are mixed continuously with a proportion of an organic diisocyanate b) in an NCO:OH ratio of from 2.0:1 to 5.0:1, in a mixing unit at high shear energy,B) the mixture prepared in step A) is reacted continuously to form an isocyanate-terminated prepolymer in a reactor at temperatures of >120.degree. C., until a conversion of >90%, referred to component a), is achieved,C) the prepolymer prepared in step B) is mixed with the remainder of component b), an NCO:OH ratio of from 2.05:1 to 6:1 being established overall in steps A) to C) and an NCO:OH ratio of 0.9 to 1.1 being established when all the components of steps A) to F) are included,D) the mixture prepared in step C) is cooled to a temperature of <190.degree. C.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: May 18, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedemann Muller, Wolfgang Brauer, Herbert Heidingsfeld, Wolfgang Rohrig, Hans-Georg Hoppe, Jurgen Winkler
  • Patent number: 5905128
    Abstract: This invention relates to (co)polymers which contain at least one repeat chain unit of the general formula (1) or (2) and optionally repeat units of the general formula (3), ##STR1## in which L.sup.1 and L.sup.2 denote a photoluminescent residue,wherein the proportion of structural units of the formulae (1) and/or (2) is in each case 0.5 to 100 mol. % and of (3) is 0 to 99.5 mol. % and the molar percentages add up to 100,to the use thereof for the production of electroluminescent arrangements and to the electroluminescent arrangements.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: May 18, 1999
    Assignee: Bayer AG
    Inventors: Yun Chen, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
  • Patent number: 5901373
    Abstract: An energy expenditure garment includes at least a portion of the garment made from multilayer construction which has an inner layer of hydrophobic material to direct moisture away from the skin with an intermediate layer of hydrophilic material to store the moisture. An outer layer of non-porous and non-moisture permeable material is provided outwardly of the storage layer to act as a barrier or wall for preventing evaporation of the moisture stored in the intermediate layer. Preferably, a moisture vapor transmission membrane is provided between the hydrophobic inner layer and the hydrophilic storage layer to provide one way flow of the moisture to the storage layer.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: May 11, 1999
    Inventor: Timothy P. Dicker
  • Patent number: D409891
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: May 18, 1999
    Assignee: Edgecraft Corporation
    Inventors: Daniel D. Friel, Daniel D. Friel, Jr., Abraham Leibson
  • Patent number: D411035
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: June 15, 1999
    Assignees: Heinz Welschoff, Williem T. Wilkinson
    Inventor: Heinz Welschoff