Patents Assigned to Bayer MaterialScience AG
  • Publication number: 20140221650
    Abstract: The present invention relates to novel 1,4,2-diazaphospholidine derivatives, to a process for preparation thereof and to use as catalysts.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Bayer MaterialScience AG
    Inventor: Frank Richter
  • Patent number: 8791200
    Abstract: The present invention relates to a polyurethaneurea solution having a polyurethaneurea having a structural unit of the formula (I) and terminated with at least one copolymer unit of the group consisting of a polyethylene oxide, a polypropylene oxide, and mixtures thereof.
    Type: Grant
    Filed: August 22, 2009
    Date of Patent: July 29, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Jürgen Köcher, Christian Wamprecht
  • Publication number: 20140206089
    Abstract: The invention relates to a method for producing organic amino compounds from organic nitro compounds, wherein the organic nitro compound hydrogenated to the organic amino compound with a hydrogen-containing gas stream by means of a catalyst, the reaction course of the hydrogenation being monitored by analysis of secondary products forming during hydrogenation, wherein the method is characterised in that the concentration of one or more gaseous secondary products is determined in the gas phase and if the concentration falls below a predefinable minimum concentration the hydrogenating activity of the catalyst is increased. The present invention also relates to a device for performing said method.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: Bayer MaterialScience AG
    Inventors: Bernd Pennemann, Bodo Temme
  • Patent number: 8783465
    Abstract: A mobile classifier (deduster) has docking devices, flushing devices and control for the dedusting of granules, in particular polymer granules, with preference polycarbonate granules. The mobile classifier can be set up at different locations underneath silos. To perform its function, the mobile classifier is technically connected to stationary pipelines, filters and fans.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: July 22, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Herbert Ungerechts, Hans-Joerg Frank, Dieter Scholten, Juergen Janssen, Markus Hagedorn
  • Patent number: 8779050
    Abstract: The present invention relates to non-aging, impact-modified polycarbonate compositions and molding compositions comprising: A) from 60 to 86 parts by weight (based on the sum of components A+B+C) of aromatic polycarbonate and/or aromatic polyester carbonate, B) from 4 to 12 parts by weight (based on the sum of components A+B+C) of graft polymer comprising: B.1 from 10 to 50 wt. % (based on the graft polymer B) of a shell of at least one vinyl monomer, and B.2 from 90 to 50 wt. % (based on the graft polymer B) of a graft base of silicone-acrylate composite rubber, C) from 10 to 30 parts by weight (based on the sum of components A+B+C) of a polymer or copolymer based on vinyl monomer, and D) from 0 to 20 parts by weight of polymer additives.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: July 15, 2014
    Assignee: Bayer Materialscience AG
    Inventors: Achim Feldermann, Andreas Seidel, Eckhard Wenz
  • Patent number: 8778476
    Abstract: This invention relates to DVDs made from polycarbonate and a special UV curable bonder material consisting of A) an urethane acrylate oligomer as binder, which is the reaction product of i) one or more polyisocyanates and ii) one or more hydroxyfunctional lactone ester (meth)acrylates having a number average molecular weight of from 200 g/mol to 2000 g/mol and having the formula: CH2?C(R1)—C(O)—O—R2—[O—C(O)—R3]n—OH wherein, n is an integer from 1 to 5, R1 is hydrogen or methyl, R2 represents an alkylene group or substituted alkylene group having from 2 to 10 carbon atoms and R3 represents a straight or branched chain alkylene group of from 3 to 8 carbon atoms, and which may be substituted with one or more alkyl groups having from 1 to 12 carbon atoms, B) a reactive thinner, comprising of mono functional acrylates and/or (meth)acrylates C) a photo initiator and D) optional additives which offers improved performance at high data transfer rates.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: July 15, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Friedrich-Karl Bruder, Wilfried Haese, Rafael Oser, Wolfgang Fischer, Michael Ludewig, Raymond Wong, Ice Zhang
  • Patent number: 8779033
    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: Grant
    Filed: May 2, 2013
    Date of Patent: July 15, 2014
    Assignee: Bayer Materialscience AG
    Inventors: Andreas Seidel, Michael Erkelenz, Eckhard Wenz
  • Patent number: 8779650
    Abstract: The present invention relates to a method for producing an electromechanical, for example piezoelectric, transducer in which a first polymer layer comprising cutouts is applied to a first continuous polymer layer by means of a printing and/or coating method, a cover is applied to the first polymer layer comprising cutouts in such a way that the cutouts of the first polymer layer comprising cutouts are closed off with the formation of cavities, and the cover is connected to the first polymer layer comprising cutouts. The invention also relates to electromechanical transducers produced by the method according to the invention, and the use of said electromechanical transducers.
    Type: Grant
    Filed: April 10, 2010
    Date of Patent: July 15, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Werner Jenninger, Joachim Wagner, Wolfgang Fischer, Jörg Büchner, Thomas Bernert, Andreas Nübler
  • Patent number: 8771904
    Abstract: The invention relates to a method for producing holographic media, wherein a photopolymer formulation comprising matrix polymers, writing monomers, a photoinitiator system, and optionally auxiliary materials and additives as components is provided, the photopolymer formulation is applied as a coating on the surface of a carrier film and the photopolymer formulation is dried on the carrier film at a temperature XX<T>YY DEG C, wherein only those compounds having TGA 95 values >100 DEG C. and at least 30 DEG C. above the temperature T are selected as components for the photopolymer formulation. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 8, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Marc-Stephan Weiser, Thomas Rölle, Dennis Hönel, Friedrich-Karl Bruder, Thomas Fäcke
  • Patent number: 8771903
    Abstract: The invention relates to a method for producing holographic films, in which a photopolymer formulation is provided which comprises as constituents matrix polymers, writing monomers, a photoinitiatior system, optionally a non-photopolymerizable component and optionally catalysts, radical stabilizers, solvents, additives and other auxiliaries and/or additives. The photopolymer formulation is applied in a planar manner and in the form of a film on a support film and the photopolymer formulation is dried on the support film at a temperature 60<T<120 DEG C, wherein only compounds are selected as components for the photopolymer formulation, the TGA 95 values of which are >100 DEG C and are above the temperature T by at least 30 DEG C, and a photopolymer formulation having a plateau module of =0.030 MPa is used.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 8, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Dennis Hönel, Marc-Stephan Weiser, Friedrich-Karl Bruder, Thomas Rölle, Thomas Fäcke
  • Patent number: 8753739
    Abstract: The present invention relates to a multi-layer product, the first layer being a UV-cured protective layer which contains SiO2 nanoparticles, and the second layer containing a thermoplastic substrate. In addition, the invention relates to the composition of the UV-curable first layer, a process for the production of the multi-layer products and products, such as e.g. glazing products, which contain the named multi-layer products.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: June 17, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Frank Buckel, Robert Maleika, Walter Koehler, Reiner Meyer
  • Patent number: 8747988
    Abstract: The invention relates to a composite plastic part consisting of a plastic part (1) that has a rib structure (2), and (a) profiled support(s) (4) which is/are glued to the ribs and the longitudinal edge of which is arranged vertically or nearly vertically on the plastic base. The invention further relates to a method for producing such a composite part and finished products containing such composite parts as components.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: June 10, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Roland Brambrink, Ulrich Grosser, Florian Dorin
  • Patent number: 8729304
    Abstract: The present invention relates to a 1,4,2-diazaphospholidine of the formula (1) wherein R1, R2 represent, independently of one another, saturated or mono- or polyunsaturated C1-C20-alkyl, -alkenyl, -alkynyl or C5-C40-aryl groups optionally substituted or interrupted by at least one heteroatom selected from the group consisting of N, O, S, and halogen, and X represents identical or different substituents selected from the group consisting of O, S, and N—R2.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: May 20, 2014
    Assignee: Bayer MaterialScience AG
    Inventor: Frank Richter
  • Patent number: 8729210
    Abstract: Prepolymers, which are accessible from formamides of low molecular weight di- or triamines (formamide-terminated low molecular weight compounds) and di- or polyisocyanates, of the general formula (II): X—[—N(CHO)—CO—NH—R1—NCO]n??(II) wherein X represents a linear or branched aliphatic, cycloaliphatic, heterocyclic and/or aromatic structural unit having 2 to 40 carbon atoms, and which is optionally further substituted and/or optionally comprises one or more heteroatoms, wherein R1 represents an organic radical which may optionally contain one or more heteroatoms and which may further contain one or more additional free isocyanate groups and/or one or more urethane, biuret, carbodiimide, isocyanurate, allophanate, iminooxadiazinedione and/or uretdione structural units, and wherein n?2; processes for making the same; compositions containing the same; and uses thereof.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 20, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Harald Blum, Evelyn Peiffer, Marc Leimenstoll
  • Patent number: 8722778
    Abstract: Compositions, suitable for coating surfaces, methods for their preparation and for coating surfaces therewith, where said compositions comprise: (a) 100,000 parts by weight of a primer composition comprising a binder material (a1), a primer solvent (a2) and a UV absorber (a3), wherein the primer composition is suitable as an adhesion-promoting agent between a thermoplastic substrate and a siloxane-based top coat; (b) 0 to 900,000 parts by weight of a solvent, and (c) 1 to 3000 parts by weight of a compound according to the general formula (I): wherein X represents a moiety selected from the group consisting —OR6, —OCH2CH2OR6, —OCH2CH(OH)CH2OR6 and —OCH(R7)COOR8, wherein R6 represents a branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R7 represents H or a branched or unbranched C1-C8 alkyl, and R8 represents a C1-C12 alkyl, a C2-C12 alkenyl or a C5-C6 cycloalkyl, and wherein the composition has a viscosity of 40 s to 140 s measured in accordance with DIN EN ISO 2431 at
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: May 13, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Gunther Stollwerck, Robert Maleika, Frank Buckel, Peter Capellen
  • Patent number: 8716380
    Abstract: The invention relates to a polycarbonate composition having reduced subsequent yellowing of the mouldings produced therefrom on heat ageing and having good optical properties of the polycarbonate composition on processing.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Stephan Konrad, Heinrich Hähnsen, Karl-Heinz Köhler, Marc Buts, Daniel Koch, Frank Guldentops
  • Patent number: 8716515
    Abstract: The present invention relates to a process for the preparation of polyether ester polyols starting from fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms, and to their use in the production of solid or foamed polyurethane materials.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Klaus Lorenz, Reinhard Albers, Frank Otto
  • Patent number: 8715406
    Abstract: The invention relates to triazine-based special organic UV absorbers modified in such a way as to be soluble in polar coating compositions. The invention further relates to coatings, e.g. sol-gel based ones, containing said novel UV absorbers as well as to the use of said coatings for permanently protecting materials, especially plastics, from photochemical degradation.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Birgit Meyer Zu Berstenhorst, Serguei Kostromine
  • Patent number: 8716374
    Abstract: The present invention relates to a composition comprising, (a) a transparent or translucent polymer or polymer blend in an amount which together with components b) to g) gives 100 wt. %, (b) optionally 0 ppm to 2500 ppm of one or more stabilizers, (c) 0.001 ppm to 10,000 ppm of at least one dye comprising structure 1a and/or 1b, (d) 0.001 ppm to 10,000 ppm of at least one dye selected from the group consisting of dyes differing from dyes having structure 1a and/or 1b based on perinone or indanthrone and dyes based on a phthalocyanine or phthalocyanine complex, (e) optionally 0 ppm to 3000 ppm of one or more release agents, (f) optionally 0 ppm to 6000 ppm of one or more UV absorbers, and (g) optionally 0 ppm to 500,000 ppm of one or more further additives.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Gesa Dern, Alexander Meyer, Joerg Reichenauer
  • Patent number: 8715888
    Abstract: The invention relates to a method for producing novel photopolymers on the basis of prepolymer-based polyurethane compositions that are suitable for producing holographic media, in particular for the visual display of images.
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Dennis Hönel, Marc-Stephan Weiser, Friedrich-Karl Bruder, Thomas Rölle, Thomas Fäcke