Patents Assigned to Bayer MaterialScience AG
  • DIFUNCTIONAL (METH)ACRYLATE WRITING MONOMERS
    Publication number: 20130252140
    Abstract: The invention relates to compounds, of formula (I) in which X is CH3 or hydrogen, Z is a linear or branched C2 to C4 alky radical, R is a linear or branched, optionally heteroatom-substituted aliphatic, aromatic or araliphatic radical, Y in each occurrence is independently hydrogen, methyl, ethyl, propyl, n-butyl, tert-butyl, chlorine, bromine, iodine, methylthio, phenyl or phenylthio, n is from 0 to 4 and m is from 0 to 5. The invention further relates to the use of such a compound as writing monomer in a photopolymer formulation. In addition, a photopolymer formulation comprising as least a polyisocyanate component, a polyol component, a photoinitiator and a compound of formula (I) as writing monomer, and also the use of the photopolymer formulation for producing holographic media, are likewise subjects of the invention.
    Type: Application
    Filed: August 10, 2011
    Publication date: September 26, 2013
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Thomas Röelle, Marc-Stephan Weiser, Dennis Hönel, Horst Berneth
  • GLASS FIBER REINFORCED POLYCARBONATE MOLDING COMPOSITIONS
    Publication number: 20130253092
    Abstract: The invention relates to glass fiber reinforced polycarbonate compositions and molding compositions of the present investor and distinguished by high rigidity, high flowabillty, high processing stability, good chemical resistance and good aging resistance vis-à-vis the effects of light and heat compared with the prior art. The present invention also relates to the use of the compositions for the production of shaded articles and to shaped articles comprising the compositions according to the invention.
    Type: Application
    Filed: May 2, 2013
    Publication date: September 26, 2013
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Andreas Seidel, Michael Erkelenz, Eckhard Wenz
  • POLYCARBONATE MOLDING COMPOSTIONS
    Publication number: 20130253114
    Abstract: A stabilized thermoplastic molding composition is disclosed. The composition contains A) aromatic polycarbonate and/or polyester carbonate, B) a rubber-modified graft polymer or its mixture with a rubber-free (co)polymer and C) a Bronsted acid compound. The inventive composition is characterized in its improved stability under processing conditions. Also disclosed is a process for the production of the composition and its use for the production of shaped articles.
    Type: Application
    Filed: May 21, 2013
    Publication date: September 26, 2013
    Applicant: Bayer Materialscience AG
    Inventors: Andreas SEIDEL, Dieter Wittmann, Christoph Schwemler
  • Flame-retardant impact-modified battery boxes based on polycarbonate I
    Patent number: 8530551
    Abstract: Battery box comprising compositions containing A) 70.0 to 90.0 parts by weight of linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) 6.0 to 15.0 parts by weight of at least one graft polymer, C) 2.0 to 15.0 parts by weight of one or more phosphorus compounds, D) 0 to 3.0 parts by weight of antidripping agents, E) 0 to 3.0 parts by weight of thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) 0 to 20.0 parts by weight of further additives, wherein the compositions are optionally free from rubber-free polyalkyl(alkyl)acrylate.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 10, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Eckel, Ulrich Grosser, Claus Rüdiger, Achim Feldermann, Dieter Wittmann
  • Thermoplastic polyurethanes and their use
    Patent number: 8530600
    Abstract: This invention concerns thermoplastic polyurethane mouldings with improved surface resistance (resistance to writing and scratching) and very good technical processability as well as their use.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: September 10, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Faisal Shafiq, Christian Wamprecht, David Pucket
  • MARKING HAVING ELECTROLUMINESCENT LIGHTING EFFECT, METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20130221839
    Abstract: An electroluminescent arrangement is described. This electroluminescent arrangement comprises the following functional layers: (a) rear electrode as layer A; (b) dielectric layer as layer B; (c) electroluminescent layer as layer C; and (d) cover electrode as layer D.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 29, 2013
    Applicant: Bayer MaterialScience AG
    Inventors: Thilo-Josef Werners, Micahel Heite, Helmut Mäuser
  • Multilayer assembly as reflector
    Publication number: 20130216859
    Abstract: The present invention relates to a multilayer assembly for use as a mirror/reflector in the sector of CPV (concentrating photovoltaics) and CSP (concentrating solar power). The multilayer assembly contains a substrate layer, a barrier layer, a reflective metallic layer, an oxidic layer and one other layer, which can be a plasma polymer layer or a highly refractive metal oxide layer.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 22, 2013
    Applicants: Bayer MaterialScience AG, Bayer MaterialScience LLC
    Inventors: Timo Kuhlmann, Michael Wagner, Oser Rafael, Terry G. Davis, Ignacio Osio
  • ELECTRODE AND ELECTRODE COATING
    Publication number: 20130213799
    Abstract: The invention describes an electrode and an electrode coating which are based on a catalyst containing finely divided carbon modifications and noble metal (oxide)s.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Applicant: Bayer MaterialScience AG
    Inventor: Bayer MaterialScience AG
  • Process for preparing aromatic carbamates
    Patent number: 8513453
    Abstract: The invention is directed to a process for preparing aromatic carbamates which comprises the reaction of an aromatic amine with an organic carbonate in the presence of a catalyst characterized in that Zn4O(OAc)6 is used as catalyst.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: August 20, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Stefan Wershofen, Stephan Klein, Anton Vidal-Ferran, Elisenda Reixach, Francese Xavier Rius-Ruiz
  • Functionalized polyurethane polyurea dispersions
    Patent number: 8513334
    Abstract: The present invention relates to aqueous polyurethane urea dispersions having integral functional groups and coating agents produced therefrom, to a method for the production thereof, and to the use thereof for producing coating agents.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: August 20, 2013
    Assignee: Bayer Materialscience AG
    Inventors: Hans Georg Grablowitz, Thomas Feller, Thomas Michaelis
  • ELECTROACTIVE POLYMER TRANSDUCERS FOR TACTILE FEEDBACK DEVICES
    Publication number: 20130207793
    Abstract: Electroactive transducers as well as methods of producing a haptic effect in a user interface device simultaneously with a sound generated by a separately generated audio signal and electroactive polymer transducers for sensory feedback applications in user interface devices are disclosed.
    Type: Application
    Filed: January 21, 2010
    Publication date: August 15, 2013
    Applicant: Bayer MaterialScience AG
    Inventors: Alireza Zarrabi, Roger N. Hitchcock
  • PRODUCTION OF DISPERSIONS CONTAINING CARBON NANOTUBES
    Publication number: 20130200310
    Abstract: Process for the preparation of stable suspensions and dispersions of carbon nanotubes, and dispersions prepared by the process.
    Type: Application
    Filed: October 4, 2011
    Publication date: August 8, 2013
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Daniel Rudhardt, Stefanie Eiden, Sigrun Stein, Gertrud Ott
  • Method for producing polyols
    Patent number: 8501904
    Abstract: A process for the preparation of a polyol which includes reacting an amino-group-containing starter compound with an alkylene oxide in the presence of a catalyst to form a polyol, wherein the catalyst is based on a compound selected from the group consisting of alkali metal hydroxides, alkali, alkaline earth metal hydrides, alkaline earth metal carboxylates, and alkaline earth hydroxides, and wherein the catalyst is present in an amount of from 0.004 to 0.1 wt. % based on the amount of polyol; and neutralizing the polyol with from 0.75 to 1 mol of sulfuric acid per mol of catalyst used.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: August 6, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Klaus Lorenz, Arnulf Werner, Marcus Eichmann
  • Transparent thermoplastic polyurethanes having low haze and good processability, methods of making the same, and uses therefor
    Patent number: 8497341
    Abstract: Light-stable, thermoplastic polyurethanes with good processability and having an ASTM D-1003 haze value of less than 10%, the polyurethane prepared by a process comprising: reacting: (a) a diisocyanate component comprising 1,6-hexamethylene diisocyanate; (b) a chain extension component consisting of (b1) 1,4-di(?-hydroxyethyl)hydroquinone and (b2) at least one chain extender selected from the group consisting of diols having a 2 or 3 carbon atom chain length between the two OH groups, in a molar ratio of chain extender (b1) to chain extender (b2) of 10:1 to 1:4; and (c) at least one polyol component having a number average molecular weight of 450 to 10000 g/mol, and an average number of Zerewitinoff-active hydrogen atoms of at least 1.8 to at most 3.0; wherein the ratio of isocyanate groups in component (a) to isocyanate-reactive groups in components (b) and (c) is 0.9:1 to 1.1:1.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: July 30, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Henricus Peerlings, Faisal Shafiq, Markus Broich
  • Electrode and electrode coating
    Patent number: 8492303
    Abstract: The invention describes an electrode and an electrode coating which are based on a catalyst containing finely divided carbon modifications and noble metal (oxide)s.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Andreas Bulan, Norbert Schmitz
  • Process for the production of polyester polyols with low volumes of dioxane waste
    Patent number: 8481606
    Abstract: The invention relates to the production and use of polyester polyols, formed from at least one carboxylic acid anhydride and ethylene glycol, wherein a specialized reaction control substantially suppresses the formation of 1,4-dioxane from diethylene glycol.
    Type: Grant
    Filed: October 24, 2009
    Date of Patent: July 9, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Hartmut Nefzger, Erika Bauer, Johannes Van de Braak, Jürgen Schloβmacher
  • DISPENSING MODULE AND METHOD FOR FILLING A DISPENSING MODULE
    Publication number: 20130168413
    Abstract: The invention relates to a dispensing module (1) for two liquid products, comprising: a first wall (3); a first piston (64) which can slide along the first wall, and which is embodied as a first chamber (30) having at least one outlet; a second piston (61) which is designed such that it can slide along a second wall (21). Coupling means (62) are provided in order to couple together both pistons when the product is being dispensed and at least one of the pistons comprises a piston head (7) which is separated initially by the coupling means, and securing means (641, 722) are provided in order to join the piston head to the coupling means.
    Type: Application
    Filed: August 12, 2011
    Publication date: July 4, 2013
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Hervé Bodet, Eric Gaillard, Thomas Walter, David Kaiser, Clemens Reizel
  • Moisture-curing polyisocyanate mixtures
    Patent number: 8476362
    Abstract: The invention relates to moisture-curing polyisocyanate mixtures, to a process for their preparation and to their use as binders in lacquers, coatings, adhesives and sealing materials.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: July 2, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Christian Wamprecht, Iker Zuazo Osaca
  • Polycarbonate compositions having improved surface hardness
    Patent number: 8470934
    Abstract: The present invention relates to polycarbonate compositions having improved surface hardness, processes for the preparation thereof and the use thereof for the production of blends, shaped articles and extrudates.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 25, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann
  • Process for the purification of aromatic amines
    Patent number: 8455691
    Abstract: Aromatic amines which have been obtained by reduction of aromatic nitro compounds are purified by mixing the crude amine obtained after phase separation with an aqueous, alkali metal hydroxide solution and subsequent distillation of this mixture over a distillation column. The distillation column has at least an upper and a lower rectifying part and a stripping part. The bottom product of the distillation column is partly to completely sluiced out and is partly evaporated in a main evaporator and at least one downstream re-evaporator and partly recycled back into the column.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: June 4, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Knut Sommer, Franz-Ulrich Gehlen, Peter Lehner, Andre Düx, Benie Marotz