Patents Assigned to Bayer Material Science
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Patent number: 7943686Abstract: The disclosure relates to impact-modified polycarbonate compositions and moulding compositions comprising A) aromatic polycarbonate or aromatic polyester carbonate or mixtures of these, B) a mixture containing Ba) at least one graft polymer prepared in emulsion polymerization and Bb) at least one carboxylate salt, wherein this mixture, suspended as a 10 wt. % strength suspension in distilled water, has a pH of >7, C) at least one acidic phosphorus compound with at least one P—OH functionality, which are distinguished compared with the prior art by an improved combination of stability to hydrolysis and heat stability, and which are suitable for production of injection-moulded components which have a good toughness at low temperatures and—even with critical processing conditions (high processing temperatures)—still have a good resistance to stress cracking under the influence of chemicals.Type: GrantFiled: December 2, 2009Date of Patent: May 17, 2011Assignee: Bayer Material Science AGInventors: Andreas Seidel, Evgueni Avtomonov, Thomas Eckel
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Publication number: 20110104492Abstract: The present invention relates to a method for the functionalization of carbon fibres using the vapour of nitric acid, carbon fibres thus modified and use thereof.Type: ApplicationFiled: June 27, 2009Publication date: May 5, 2011Applicant: Bayer Material Science AGInventors: Martin Muhler, Wei Xia
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Publication number: 20110091839Abstract: The present invention relates to a strand-like profile body for dental cleaning, wherein the cross-section of the profile body comprises a bottom section (10) and first wall sections (12) and second wall sections (14), which adjoin the bottom section and are arranged opposite of each other, and wherein furthermore the bottom section (10) together with the first and second wall sections (12, 14) forms at least one recess (16, 18) in the profile body for receiving a tooth. The invention further relates to a method for the production thereof and the use thereof for cleaning teeth.Type: ApplicationFiled: June 6, 2009Publication date: April 21, 2011Applicant: Bayer Material Science AGInventors: Meike Niesten, Steffen Hofacker, Thorsten Rische, Sebastian Doerr
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Publication number: 20110077310Abstract: The present invention relates to the use of specific polyurethane coatings, wherein the polyurethane urea is terminated by a copolymer unit of polyethylene oxide and polypropylene oxide.Type: ApplicationFiled: May 19, 2009Publication date: March 31, 2011Applicant: Bayer Material Science AGInventor: Juergen Koecher
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Publication number: 20110014139Abstract: The invention relates to sun protection compositions for applying to the skin, containing special polyurethanes and to the use of the above-mentioned polyurethanes for producing sun-protection products.Type: ApplicationFiled: March 13, 2009Publication date: January 20, 2011Applicant: Bayer Material Science AGInventors: Sophie Viala, Sebastian Doerr, Steffen Hofacker
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Publication number: 20110003918Abstract: The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt.% (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity.Type: ApplicationFiled: December 18, 2009Publication date: January 6, 2011Applicant: BAYER MATERIAL SCIENCE AGInventors: Thomas Eckel, Vera Taschner, Achim Feldermann, Eckhard Wenz
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Publication number: 20100310812Abstract: 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: ApplicationFiled: October 29, 2008Publication date: December 9, 2010Applicants: 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: 20100301595Abstract: The invention relates to the use of a preparation comprising A) 0.1 to 20 wt % of a binding agent with a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, B) 30 to 99.9 wt % of an organic solvent or of a mixture of solvents, C) 0 to 10 wt %, referred to dry mass, of a dye or of a mixture of dyes, D) 0 to 10 wt % of a functional material or of a mixture of functional materials, E) 0 to 30 wt % of additive and/or auxiliary substances, or of a mixture of such substances, the relative amounts of the components A) to E) always totaling 100 wt %, as an ink jet printing dye.Type: ApplicationFiled: October 29, 2008Publication date: December 2, 2010Applicants: BUNDESDRUCKEREI GMBH, BAYER MATERIAL SCIENCE AGInventors: Oliver Muth, Arthur Mathea, Malte Pflughoefft, Jens Ehreke, Manfred Paeschke, Heinz Pudleiner, Cengiz Yesildag, Klaus Meyer
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Publication number: 20100304093Abstract: 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: December 8, 2008Publication date: December 2, 2010Applicants: BUNDESDRUCKEREI GMBH, BAYER MATERIAL SCIENCE AGInventors: Michael Hagemann, Arthur Mathea, Oliver Muth, Malte Pflughoefft, Jorg Fischer, Heinz Pudleiner
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Publication number: 20100291392Abstract: 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, and in between the first polymer layer and the second polymer layer an intermediate layer being arranged, comprising the following steps: a) the intermediate layer is applied at least on a partial region of the first polymer layer, b) optionally the intermediate layer is dried, c) the first polymer layer is coated on the side, on which the intermediate layer is arranged, with a liquid preparation comprising a solvent or a mixture of solvents and a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, the preparation covering the intermediate layer, d) optionally a drying step is made after step c), e) after step c) or step d), the second polymer layer is placed on the first polymer layer, covering the intermediate layer, f) the first polymer layer and the second polymer layer are laminated withType: ApplicationFiled: October 29, 2008Publication date: November 18, 2010Applicants: BUNDESDRUCKEREI GMBH, BAYER MATERIAL SCIENCE AGInventors: Andre Leopold, Oliver Muth, Michael Knebel, Rainer Seidel, Jens Ehreke, Manfred Paeschke, Heinz Pudleiner, Cengiz Yesildag, Klaus Meyer
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Publication number: 20100279894Abstract: The present invention relates to a composition comprising bacteriophages and coating material for surfaces, characterized in that a first additional peptide is fused on proteins of the bacteriophage and furthermore a second additional peptide is fused on proteins of the bacteriophage. In addition, the present invention relates to a surface that has been coated with the composition and the use of the composition for coating surfaces.Type: ApplicationFiled: November 20, 2008Publication date: November 4, 2010Applicants: Bayer Technology Services GMBH, Bayer Material Science AGInventors: Stefanie Eiden, Axel Eble, Bastian Budde, Sascha Plug, Peter Krüger
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Publication number: 20100266481Abstract: Processes for the production of chlorine from a gas containing hydrogen chloride and carbon monoxide, which comprise the catalysed oxidation of the carbon monoxide as well as optionally further oxidizable constituents, with oxygen to form carbon dioxide in an upstream reactor under adiabatic conditions.Type: ApplicationFiled: May 23, 2007Publication date: October 21, 2010Applicant: Bayer Material Science AGInventors: Michel Haas, Markus Dugal, Knud Werner
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Publication number: 20100260985Abstract: The invention relates to a method for producing a polymer layer composite that comprises a plurality of polymer layers and at least one polymer layer contains a laser-sensitive component, said method consisting of the following steps: A) first personalised information is applied to at least one of the polymer layers by means of an inkjet printing method as a coloured inkjet printed layer, B) the polymer layer with the coloured inkjet printed layer is then joined to the other polymer layers, the polymer layer with the coloured inkjet printed layer being arranged between two other polymer layers, C) second personalised information is inscribed into the polymer layer composite obtained in step B) by means of laser engraving. The invention also relates to a thus obtained polymer layer composite, a security and/or valuable document comprising a polymer layer composite of said type and to a method for producing a security and/or valuable document of said type.Type: ApplicationFiled: December 8, 2008Publication date: October 14, 2010Applicants: BUNDESDRUCKEREI GMBH, BAYER MATERIAL SCIENCE AGInventors: Michael Hagemann, Arthur Mathea, Oliver Muth, Malte Pflughoefft, Jorg Fischer, Heinz Pudleiner
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Publication number: 20100244499Abstract: The present invention relates to a segmented roof for a motor vehicle comprising a plurality of segments which are connected to one another in a cohesively bonded and/or interlocking manner, are guided laterally in guide rails by means of pins and are movable between a closed position, in which the segments are closely contiguous to one another, and an open position, in which the segments are pushed together and folded in a roof region, characterized in that, apart from the last segment [10], each segment [8] has two opposite sides A and two opposite sides B, and the segments are connected to one another along the sides B, and each side A has two pins [4], [5], one subset of the pins [4] being differently dimensioned from the other subset of the pins [5], two pins located on one side A being differently dimensioned, and two opposite pins on the opposite sides A of a segment each being identically dimensioned.Type: ApplicationFiled: October 7, 2008Publication date: September 30, 2010Applicant: Bayer Material/Science AGInventors: Florian Dorin, Stephan Lange, Roland Brambrink, Ulrich Grosser
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Publication number: 20100249290Abstract: The present invention relates to flame-protected impact-modified polycarbonate compositions, wherein the compositions are free of rubber-free polyalkyl (alkyl)acrylate. The present invention further relates to the use of the polycarbonate compositions in the production of moulded bodies, and to the moulded bodies themselves.Type: ApplicationFiled: March 23, 2010Publication date: September 30, 2010Applicant: BAYER MATERIAL SCIENCE AGInventors: Achim FELDERMANN, Thomas Eckel, Andreas Seidel, Dieter Wittmann
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Patent number: 7763757Abstract: Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7% are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7%; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70° C.Type: GrantFiled: January 9, 2008Date of Patent: July 27, 2010Assignee: Bayer Material Science AGInventors: Christian Münnich, Ulrich Blaschke, Rob Eek, Michael Prein, Raymond Audenaert, Gert Tytgat
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Patent number: 7754782Abstract: The present invention relates to novel, rapidly curing adhesives based on hydrophilic polyisocyanate prepolymers for use in surgery.Type: GrantFiled: June 30, 2008Date of Patent: July 13, 2010Assignee: Bayer Material Science AGInventors: Heike Heckroth, Burkhard Köhler, Sebastian Dörr
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Patent number: 7691941Abstract: The present invention relates to the preparation of aqueous, solvent-free or low-solvent, storage-stable polyurethane crosslinker dispersions having pyrazole-blocked isocyanate groups, to coating compositions prepared from them and to their use in coatings.Type: GrantFiled: May 24, 2007Date of Patent: April 6, 2010Assignee: Bayer Material Science AGInventors: Sebastian Dörr, Heino Müller, Harald Blum
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Publication number: 20090311512Abstract: An organic radiation-emitting component (1) comprising an organic layer (2) formed for generating radiation, and comprising a radiation coupling-out side is specified, a scattering film (8) being arranged on the radiation coupling-out side of the component and being connected to the component.Type: ApplicationFiled: July 4, 2007Publication date: December 17, 2009Applicants: OSRAM Opto Semiconductors GmbH, Bayer Material Science AGInventors: Hans Braun, Markus Klein, Klaus Meyer, Ralph Pätzold, Heinz Pudleiner, Wiebke Sarfert, Florian Schindler
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Publication number: 20090306236Abstract: The present invention provides a process for producing a rigid polyisocyanurate foam involving reacting at an isocyanate index of from about 175 to about 400, a polyisocyanate with at least one natural-oil polyol containing at least about 35 wt. %, based on the weight of the polyol, of natural oil, having a hydroxyl number from about 175 to about 375 and a hydroxyl functionality of about 2.0 to about 2.8, in the presence of a blowing agent and optionally, in the presence of one or more of surfactants, flame retardants, pigments, catalysts and fillers, wherein the resulting foam has a renewable biobased content of at least 8% by weight. The foams provided by the inventive process possess properties similar to foams produced from petroleum-derived materials and may find use in wall or roof insulation systems. The high biobased content (>8%) may allow wall or roof insulation systems containing these foams to be considered for the U.S. Government's preferred procurement program.Type: ApplicationFiled: June 4, 2008Publication date: December 10, 2009Applicant: BAYER MATERIAL SCIENCE LLCInventors: DAVID F. SOUNIK, Steven L. Schilling, Don S. Wardius, Edward E. Ball