Patents Assigned to Bayer MaterialScience AG
  • Publication number: 20160017097
    Abstract: The invention relates to polyisocyanates comprising urethane groups, based on toluylene diisocyanate, to a method for their production, and to their use as the polyisocyanate component in one- and two-component polyurethane coatings.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 21, 2016
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Josef SANDERS, Andreas HECKING, Reinhard HALPAAP, Frank RICHTER, Oswald WILMES, Jan BUSCH, Tim LODDENKEMPER, Friedhelm STEFFENS
  • Patent number: 9238320
    Abstract: A composite and process for the production of a composite component, comprising a) a support of a thermoplastic composition, and b) at least one polyurethane layer in direct contact with the support.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: January 19, 2016
    Assignee: BAYER MATERIALSCIENCE AG
    Inventors: Andreas Seidel, Rainer Protte, Eckhard Wenz, Uli Franz, Philipp Moeller
  • Publication number: 20160002143
    Abstract: The present application relates to a method for the continuous production of diaryl carbonate from phosgene and of at least one monohydroxy compound (monophenol) in the presence of catalysts, and to the use thereof for the production of polycarbonates.
    Type: Application
    Filed: December 17, 2013
    Publication date: January 7, 2016
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Karl-Heinz KÖHLER, Henning KAHNIS, Johan VANDEN EYNDE, Gabriel DENECKER, Ricarda LEIBERICH, Kaspar HALLENBERGER, Korbinian KRÄMER, Florian LIPSKI
  • Publication number: 20160002423
    Abstract: The present invention relates to the improvement of the maximum processing temperature of plastic substrates, in particular polymer films.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 7, 2016
    Applicant: Bayer MaterialScience AG
    Inventors: Axel SCHMIDT, Theivanayagam Chairman DEIVARAJ, Rachel Tessy MATHEW, Zheng WANG, Fransiska Cecilia KARTAWIDJAJA, Shu yin Sharon SIM
  • Publication number: 20150368212
    Abstract: The present invention relates to a UV absorber-comprising urethane acrylate, to a process for its preparation, and to the use thereof. The UV absorber is chemically bonded into the system.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 24, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Serguei KOSTROMINE, Joachim PETZOLDT, Wolfgang FISCHER
  • Patent number: 9212272
    Abstract: The present invention relates to organic coloring agents with a high color stability to weathering for thermoplastics. The invention furthermore relates to a polymer composition containing at least one thermoplastic and at least one organic coloring agent, preferably a combination of at least two organic coloring agents, of a specific structure. The invention moreover relates to the use of the coloring agents according to the invention for coloring polymer compositions, in particular for transparent formulations such as are required for the production of panes for use in buildings, motor vehicles and track vehicles or aircraft.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: December 15, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Alexander Meyer, Michael Wagner, Jörg Reichenauer
  • Publication number: 20150337070
    Abstract: The invention relates to a method for producing non-alternating formaldehyde/CO2 copolymers, said method comprising the step of reacting formaldehyde or a compound that releases formaldehyde with carbon dioxide in the presence of a catalyst system. Said method is characterised in that the catalyst system comprises a Lewis acid component and a basic component, the Lewis acid component being at least temporarily coordinatively unsaturated under reaction conditions and the basic component having a pKb value of >=0.
    Type: Application
    Filed: December 17, 2013
    Publication date: November 26, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Ernst MÜLLER, Christoph GÜRTLER, Henning VOGT, Mario KRAUTSCHICK, Walter LEITNER
  • Patent number: 9193822
    Abstract: The invention relates to a process for producing polyester polyols with secondary hydroxyl end groups, including the step of the reaction of a polyester including carboxyl end groups with an epoxide of the general formula (1): wherein R1 stands for an alkyl residue or an aryl residue and the reaction is carried out in the presence of a catalyst that includes at least one nitrogen atom per molecule. The process is distinguished in that the polyester including carboxyl end groups exhibits an acid value from ?25 mg KOH/g to ?400 mg KOH/g and a hydroxyl value from ?5 mg KOH/g and in that the polyester including carboxyl end groups is produced by ?1.03 mol to ?1.90 mol carboxyl groups or carboxyl-group equivalents of an acid component being employed per mol hydroxyl groups of an alcohol. The polyester polyols obtained, including secondary hydroxyl end groups, can be used for the purpose of producing polyurethane polymers.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: November 24, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Hartmut Nefzger, Erika Bauer, Jörg Hofmann, Klaus Lorenz, Bert Klesczewski
  • Publication number: 20150330137
    Abstract: The invention relates to insulating glass units having high thermal insulation and reduced transmissivity for IR radiation comprising at least two spaced-apart glass panes and at least one spaced-apart sheet of special polycarbonate containing a gas mixture within these units.
    Type: Application
    Filed: November 29, 2013
    Publication date: November 19, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Alexander MEYER, Timo KUHLMANN, Rafael OSER
  • Publication number: 20150329719
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and moulding compositions which have good mechanical properties, good resistance to chemicals and high hydrolytic stability. The present application additionally relates to the use of the compositions in the production of moulded articles, and to moulded articles produced from the compositions.
    Type: Application
    Filed: December 3, 2013
    Publication date: November 19, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Mathieu JUNG, Thomas ECKEL, Sven HOBEIKA
  • Publication number: 20150322196
    Abstract: The present invention relates to a polyester polyurethane material with long term hydrolysis resistance which is prepared from perchlorates and a polyester polyol comprising structure unit I, II, and III. The polyester polyurethane material having a mole ratio of structure unit II to III of 1:1.5 to 1.5:1 has better long term hydrolysis resistance. In another aspect of the present invention, there is provided soles, carpets, rollers, sealing strips, coating, tires, wipers, steering wheels or gaskets prepared from the polyester polyurethane material, and a use of the polyester polyurethane material.
    Type: Application
    Filed: January 21, 2014
    Publication date: November 12, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Hartmut NEFZGER, Xiang LIU, John ZHANG, Sam Torres
  • Publication number: 20150322290
    Abstract: [Problem] In a coating method of a two-coat one-bake system where a clear coat paint is coated after a base coat paint is coated, then these two coated layers are simultaneously hardened, adhesive strength between the two coated layers is to increase in comparison with the conventional method. [Solution] Provided is a coating method; A specific hardener is used in the clear coat paint. The hardener is one containing a polyisocyanate derived from 1,6-hexamethylene diisocyanate, satisfying all the following conditions: 1) Hardener does not virtually include diisocyanate monomer, 2) Viscosity of hardener is not more than 1000 mPa·s/23° C., 3) Content of HDI trimer in hardener is not less than 60 weight %, and 4) Content of HDI dimer in hardener is less than 10 weight %.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 12, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Tomokazu SHIGEMORI, Hiroshi MORITA
  • Patent number: 9175135
    Abstract: The present invention relates to a process for the continuous preparation of diaryl carbonates from phosgene and at least one monohydroxy compound (monophenol) in the presence of catalysts, and also the use thereof for preparing polycarbonates. The hydrogen chloride formed in the reaction is converted by thermal oxidation into chlorine, with the chlorine being recirculated to the preparation of phosgene. In particular, the process comprises utilization of the hydrogen chloride formed for the process for preparing diphenyl carbonate (DPC process).
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 3, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan
  • Patent number: 9168324
    Abstract: The present invention provides novel polyurethane-based wound dressing foams, obtained by foaming and curing silane-terminated polyurethanes.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: October 27, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Michael Mager, Michael Ludewig, Mathias Matner, Melita Dietze, Burkhard Fugmann
  • Publication number: 20150299373
    Abstract: The present invention relates to a process for the production of flexible polyurethane foams, wherein there is used as starting material a polyester polyol component which is composed of at least two dicarboxylic acids.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 22, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Hartmut NEFZGER, Bert KLESCZEWSKI, Sven MEYER-AHRENS, Harald KNAUP
  • Publication number: 20150299463
    Abstract: The present invention relates to flameproofed polycarbonate (PC) compositions and moulding compounds which have modified impact strength, good mechanical properties, good chemical resistance and high hydrolysis stability. The present patent application further relates to the use of the compositions for the production of moulded articles and to the moulded articles produced from the compositions.
    Type: Application
    Filed: December 4, 2013
    Publication date: October 22, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Mathieu JUNG, Thomas ECKEL, Sven HOBEIKA
  • Publication number: 20150299374
    Abstract: The present invention relates to a method for producing polyether carbonate polyols, wherein: (i) in a first step, (a) carbon dioxide and propylene oxide or (b) carbon dioxide and a mixture of propylene oxide and at least one further alkylene oxide in a ratio by weight of >90:10 are attached to one or more H-functional starting substances in the presence of at least one DMC catalyst; ii) in a second step, the reaction mixture obtained from step (i) is (ii-1) first chain-lengthened with a mixture containing propylene oxide (PO) and ethylene oxide (EO) in a PO/EO ratio by weight of 90/10 to 20/80 in the presence of at least one DMC catalyst.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 22, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Joerg HOFMANN, Norbert HAHN
  • Publication number: 20150291726
    Abstract: The present invention relates to a method for the production of oxazolidinone compounds, comprising the step of slowly reacting an isocyanate compound with an epoxide compound in the presence of a Lewis acid catalyst. The invention further relates to an oxazolidinone compound, obtainable by a method according to the invention, with a colour as determined according to ASTM D1209-05 (2011) of ?200 and a molar ratio of the oxazolidinone compound to isocyanurate by-product o/i of ?85/15. Lastly, the invention relates to an oligomeric or polymeric oxazolidinone compound, obtainable by a method according to the invention using an isocyanate compound with two or more NCO groups per molecule and an epoxide compound with two or more epoxy groups per molecule, comprising at least two units derived from the isocyanate compound and at least two units derived from the epoxide compound, with a colour as determined according to ASTM D1209-05 (2011) of ?200.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 15, 2015
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Ernst Mueller, Christoph Guertler, Susmit Basu, Walter Leitner
  • Publication number: 20150291840
    Abstract: The present invention relates to a coating composition that is suitable in particular for the production of coatings that can be matted. The coating composition comprises a) an aqueous dispersion of a hydroxy-functional prepolymer, obtainable by reaction of at least the following components: i) a component comprising hydroxy groups, ii) a polyester polyol comprising hydroxy groups, iii) a polyisocyanate comprising isocyanate groups, iv) a compound which comprises at least two groups reactive towards isocyanate groups and at least one group capable of anion formation, v) water, wherein components i)-iii) and the ratio of components i)-iii) are so chosen that an excess of hydroxy groups is present relative to the isocyanate groups, b) nanoparticles having a number-average particle size of from 1 to 1000 nm, and c) a crosslinker comprising at least two groups reactive towards hydroxy groups.
    Type: Application
    Filed: October 25, 2013
    Publication date: October 15, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Marc Claudius Schrinner, Heinz-Dietmar Gewiss, Uwe Klippert, Martin Melchiors
  • Publication number: 20150284499
    Abstract: The present invention relates to an alkoxysilane-terminated prepolymer, characterized in that it is obtainable by reaction of at least A) a polyol, B) a compound having two or more isocyanate groups, and C) an alkoxysilane having at least an isocyanate group and/or an isocyanate-reactive group, wherein the polyol A) comprises at least a polyethercarbonatepolyol obtainable by addition of carbon dioxide and alkylene oxides onto H-functional starter molecules, The present invention further relates to a process for preparing the alkoxysilane-terminated prepolymer of the present invention and also to a composition and a multicomponent system comprising an alkoxysilane-terminated prepolymer of the present invention. The present invention further relates to a shaped article obtainable by polymerizing the alkoxysilane- terminated prepolymer of the present invention, by polymerizing a composition of the present invention or by polymerizing a multicomponent system of the present invention.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 8, 2015
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Jürgen Köcher, Ute Nattke