Patents Assigned to Bayer Material Science
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Patent number: 10150324Abstract: The invention relates to a method for producing a security and/or valuable document containing a polymer layer composite or consisting thereof, said polymer layer composite being formed from a polymer layer partial composite and a polymer cover layer and the polymer layer partial composite and/or the polymer cover layer containing a laser sensitive component, consisting of the followings steps: A) first personalized information is applied to the polymer layer partial composite by means of an inkjet printing method as a colored inkjet printed layer, B) the polymer cover layer is applied to the inkjet printed layer and is joined to the polymer layer partial composite by thermal lamination, and C) second personalized information is inscribed into the polymer layer composite of the security and/or valuable document, obtained in step B), by means of laser engraving. The invention also relates to a security and/or valuable document that can be produced according to said method.Type: GrantFiled: January 23, 2017Date of Patent: December 11, 2018Assignees: Bundesdruckerei GmbH, Bayer Material Science AGInventors: Michael Hagemann, Arthur Mathea, Oliver Muth, Malte Pflughoefft, Jorg Fischer, Heinz Pudleiner
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Publication number: 20160273005Abstract: The invention relates to a method of generating a recombinant host strain for producing phenol, comprising the steps of a) providing a host comprising chorismate, b) transforming said host with a first nucleic acid sequence comprising ubiC (SEQ ID NO: 1) encoding chorismate lyase that converts chorismate to 4-hydroxybenzoate, and c) transforming said host with a second nucleic acid sequence encoding an oxygen-tolerant 4-hydroxybenzoate decarboxylase that converts 4-hydroxybenzoate to phenol, thereby generating a recombinant host that is capable of producing phenol under aerobic conditions, wherein step b) and step c) are carried out simultaneously or sequentially. The invention also provides the recombinant host strain for producing phenol obtainable by the aforementioned method, as well as a method of producing phenol in said recombinant host strain.Type: ApplicationFiled: November 13, 2013Publication date: September 22, 2016Applicants: BAYER TECHNOLOGY SERVICES GMBH, BAYER MATERIAL SCIENCE AGInventor: JORGEN MAGNUS
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Publication number: 20160009870Abstract: The invention relates to a method for producing compositions containing vinylaromatic copolymers which are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by an improved surface quality once the granulates have been moistened by bringing same in contact with liquid water and have been stored in said water, thus making the compositions suitable for producing molded articles having a class A surface that remains flawless over time.Type: ApplicationFiled: February 5, 2014Publication date: January 14, 2016Applicant: BAYER MATERIAL SCIENCE AGInventors: Hans-Juergen THIEM, Ingmar HERMSDORFER, Birgit MANNEL, Andreas SEIDEL, Eckhard WENZ, Hans-Juergen KLANKERS, Udo BIRKENBEUL, Alfred SATZINGER
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PRODUCTION AND USE OF NEW THERMOPLASTIC POLYURETHANE ELASTOMERS BASED ON POLYETHER CARBONATE POLYOLS
Publication number: 20150232606Abstract: The invention relates to a method for producing a thermoplastic polyurethane elastomer, comprising the reaction of at least A) one organic diisocyanate containing two isocyanate groups with B) a polyol having a number-average molecular weight Mn>=500 and <=5000 g/mol, which has at least two isocyanate-reactive groups, and C) one or more chain extenders having a molecular weight >=60 and <=490 g/mol, which have two isocyanate-reactive groups, and optionally D) a monofunctional chain stopper, which has one isocyanate-reactive group, and/or E) a catalyst, wherein the molar ratio of the isocyanate groups from A) to the sum of the groups reactive to isocyanate in B), C), and, if applicable, D) is >=0.9:1 and <=1.2:1, and component B) contains at least one polyether carbonate polyol, which can be obtained by adding carbon dioxide and alkylene oxides to H-functional starter substances.Type: ApplicationFiled: October 14, 2013Publication date: August 20, 2015Applicant: Bayer Material/Science AGInventors: Christian Wamprecht, Wolfgang Kaufhold, Christoph Gürtler -
Publication number: 20140239532Abstract: 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: ApplicationFiled: March 10, 2014Publication date: August 28, 2014Applicant: BAYER MATERIAL SCIENCE AGInventors: ANDREAS SEIDEL, RAINER PROTTE, ECKHARD WENZ, ULI FRANZ, PHILIPP MOELLER
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Patent number: 8747647Abstract: In a process for chlorine-alkali electrolysis, use is made of an oxygen depletion cathode. The process is run with a high excess of oxygen. The oxygen needed for this is provided for a device of the gas separation, for example a VPSA plant or an air fractionation plant. The large quantities of oxygen produced lead to considerable costs of the process. According to the invention, the oxygen-rich atmosphere remaining after passing through the process is fed back into the device for gas separation as input gas. The device the gas separation is therefore operated with an oxygen-rich input gas and therefore produces a larger quantity of oxygen-rich gas, which in turn is fed to the oxygen depletion cathode. As a result of the circulation of the gas, the economy of the overall process is increased considerably.Type: GrantFiled: May 28, 2010Date of Patent: June 10, 2014Assignees: Messer Group GmbH, Bayer Material Science AGInventors: Walter Bachleitner, Christoph Erdmann, Joachim Rohovec, Andreas Bulan, Mathias Weis
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Patent number: 8648163Abstract: Disclosed are random copoly(phosphonate carbonate)s with the high molecular weight and narrow molecular weight distribution exhibiting a superior combination of properties compared to prior art.Type: GrantFiled: February 11, 2013Date of Patent: February 11, 2014Assignees: FRX Polymers, Inc., Bayer Material Science AGInventors: Dieter Freitag, Pin Go, Lawino Kagumba, Stephan Konrad, Helmut-Werner Heuer, Berit Krauter, Pieter Ooms, Michael Prein, Johann Rechner
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Patent number: 8636862Abstract: The invention relates to a method for making a structure with at least a first polymer layer and a second polymer layer, each made from a polycarbonate polymer based on bisphenol A, between the polymer layers a component being arranged, comprising the following steps: a) the component is arranged on the first polymer layer or placed in a depression of the first polymer layer, b) the first polymer layer is coated on the side, on which or in which the component is arranged, at least in the region of the component with a liquid preparation comprising a solvent or a mixture of solvents and a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, c) optionally a drying step is made after step b), d) after step b) or step c), the second polymer layer is placed on the first polymer layer, covering the component, e) the first polymer layer and the second polymer layer are laminated with each other under pressure, at a temperature from 120° C. to 180° C. and for a defined time.Type: GrantFiled: October 29, 2008Date of Patent: January 28, 2014Assignees: Bundesdruckerei GmbH, Bayer Material Science AGInventors: Oliver Muth, Andre Leopold, Malte Pflughhoefft, Jorg Fischer, Manfred Paeschke, Heinz Pudleiner, Cengiz Yesildag, Klaus Meyer
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Publication number: 20130214524Abstract: The invention relates to a method for producing a security and/or valuable document containing a polymer layer composite or consisting thereof, said polymer layer composite being formed from a polymer layer partial composite and a polymer cover layer and the polymer layer partial composite and/or the polymer cover layer containing a laser sensitive component, consisting of the followings steps: A) first personalized information is applied to the polymer layer partial composite by means of an inkjet printing method as a colored inkjet printed layer, B) the polymer cover layer is applied to the inkjet printed layer and is joined to the polymer layer partial composite by thermal lamination, and C) second personalized information is inscribed into the polymer layer composite of the security and/or valuable document, obtained in step B), by means of laser engraving. The invention also relates to a security and/or valuable document that can be produced according to said method.Type: ApplicationFiled: March 13, 2013Publication date: August 22, 2013Applicants: BAYER MATERIAL SCIENCE AG, BUNDESDRUCKEREI GMBHInventors: Bundesdruckerei GmbH, Bayer Material Science AG
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Patent number: 8487025Abstract: The present invention relates to an aromatic branched polycarbonate, produced via melt transesterification of a bisphenol with a diaryl carbonate in the presence of a branching agent, wherein the aromatic branched polycarbonate comprises branching point structures and structures of formula (D) wherein X is a single bond, C1- to C6-alkylene, C2- to C5-alkylidene or C5- to C6-cycloalkylidene, optionally substituted by C1- to C6-alkyl; wherein the amount of D in the aromatic branched polycarbonate is in the range of from 5 to 450 mg per kg of the aromatic branched polycarbonate; and wherein the ratio of the total branching point structures to the total structures of the formula D in the aromatic branched polycarbonate is in the range of from 8 to 200.Type: GrantFiled: April 7, 2011Date of Patent: July 16, 2013Assignee: Bayer Material Science AGInventors: Stephan Konrad, Helmut-Werner Heuer, Karl-Heinz Köhler, Christian Münnich, Rolf Wehrmann
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Patent number: 8478080Abstract: In the production of a document, image information is incorporated into a plurality of layers of the document such that the pieces of image information are combined into a total image. The image information in at least two of the layers includes digital watermark information. The entirety of the digital watermark information in the at least two layers forms a security feature for an authentication of the document. The invention further relates to a respective document, a method for authentication, and a device for authentication.Type: GrantFiled: October 31, 2008Date of Patent: July 2, 2013Assignees: Bayer Material Science AG, Bundesdruckerei GmbHInventors: Edward Springmann, Manfred Paeschke, Oliver Muth
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Patent number: 8470216Abstract: The present disclosure relates to a method for producing composite materials containing as a first layer a foamed thermoplastic support and as a second layer polyurethane (PU), the resulting composite materials being characterized by improved foam adhesion, wherein (i) a foamed polycarbonate molding composition is produced by injection molding using chemical or physical foaming techniques, and (ii) the polyurethane reaction system is applied on top and allowed to cure. The disclosure also provides the composite systems produced by this method and their use as a component, in particular in the automotive sector.Type: GrantFiled: July 29, 2010Date of Patent: June 25, 2013Assignee: Bayer Material Science AGInventors: Wolfgang Drube, Philipp Möller, Hans-Jürgen Klankers, Dirk Loof
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Publication number: 20130158147Abstract: Disclosed are random copoly(phosphonate carbonate)s with the high molecular weight and narrow molecular weight distribution exhibiting a superior combination of properties compared to prior art.Type: ApplicationFiled: February 11, 2013Publication date: June 20, 2013Applicants: BAYER MATERIAL SCIENCE AG, FRX POLYMERS, INC.Inventors: FRX Polymers, Inc., Bayer Material Science AG
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Publication number: 20130090426Abstract: The present invention relates to novel low-monomer-content, low-viscosity, high-activity preparations made of isocyanurates containing isocyanate groups and of phthalate-free plasticizers, to use of the same as adhesion promoters with improved adhesion for coating compositions based on plasticized polyvinyl chloride, and also to coatings and coated substrates.Type: ApplicationFiled: February 3, 2011Publication date: April 11, 2013Applicants: BAYER MATERIAL SCIENCE AG, LANXESS DEUTSCHLAND GMBHInventors: Thomas Augustin, Josef Sanders
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Patent number: 8389664Abstract: Disclosed are random copoly(phosphonate carbonate)s with the high molecular weight and narrow molecular weight distribution exhibiting a superior combination of properties compared to prior art.Type: GrantFiled: September 16, 2011Date of Patent: March 5, 2013Assignees: FRX Polymers, Inc., Bayer Material Science AGInventors: Dieter Freitag, Pin Go, Lawino Kagumba, Stephan Konrad, Helmut-Werner Heuer, Berit Krauter, Pieter Ooms, Michael Prein, Johann Rechner
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Patent number: 8354028Abstract: A method for separating electrolyte-containing water from an organic phase by means of permeation on a hydrophobic separating means. The permeated organic solution is substantially depleted in water and the retained water is enriched with electrolytes.Type: GrantFiled: October 22, 2007Date of Patent: January 15, 2013Assignee: Bayer Material Science AGInventors: Helmut Meyer, Guido Naberfeld, Johann Rechner, Rafael Warsitz, Michael Traving, Werner Bäcker, Thomas Elsner, Arno Nennemann, Stephan Bahnmuler, Gerhard Langstein, Julia Hitzbleck, Patrick Theato, Daniel Kessler, Daniel-Gordon Duff, Sascha Plug
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Publication number: 20120325674Abstract: The invention relates to a method for improving the performance of nickel electrodes in alkali chloride electrolysis by adding water-soluble platinum compounds to the catolyte.Type: ApplicationFiled: September 4, 2012Publication date: December 27, 2012Applicant: Bayer Material Science AGInventors: Andreas Bulan, Rainer Weber, Richard Malchow, Rolf Spatz, Hermann-Jens Womelsdorf
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Publication number: 20120271064Abstract: The present invention relates to a continuous process for preparing hydroxyalkyl (meth)acrylates, more particularly those hydroxyalkyl (meth)acrylates which have more than one (meth)acrylate group per molecule.Type: ApplicationFiled: July 6, 2010Publication date: October 25, 2012Applicants: BAYER MATERIAL SCIENCE AG, BAYER TECHNOLOGY SERVICES GMBHInventors: Björn Henninger, Ursula Tracht, Sigurd Buchholz, Claudia Willems, Rolf Bachmann, Michael Ludewig, Wolfgang Fischer
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Publication number: 20120211922Abstract: The invention relates to a device for machine-based processing of rapid polymeric reaction systems, particularly polyurethane systems, wherein a rapid formula change is possible with simultaneously low raw material consumption. The device according to the invention further requires little space, allowing for operation in a standing flue, for example.Type: ApplicationFiled: July 24, 2010Publication date: August 23, 2012Applicant: Bayer Material Science AgInventors: Joachim Wagner, Michael Gladisch, Hubert Ehbing, Thomas Herweg, Jürgen Gollan
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Publication number: 20120161353Abstract: The invention relates to a method for producing sound-absorbing flexible polyurethane foam mouldings.Type: ApplicationFiled: August 13, 2010Publication date: June 28, 2012Applicant: BAYER MATERIAL SCIENCE AGInventors: Frithjof Hannig, Thomas Gross, Stephan Schleiermacher, Hans-Guido Wirtz, Heike Niederelz, Roger Scholz