Patents by Inventor Claus Rüdiger
Claus Rüdiger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10272654Abstract: The present invention relates to compositions containing flame retardant polycarbonate, which are suitable for producing flame-resistant milk-white colored plates. The composition contains polycarbonate, 0.10 to 4.00 weight percent of an acrylate-based scattering additive, 0.50 to 5.00 weight percent of an aromatic-aliphatic polyester, and 0.50 to 8.00 weight percent of a phosphorus-based flame retardant.Type: GrantFiled: November 3, 2010Date of Patent: April 30, 2019Assignee: Covestro Deutschland AGInventors: Alexander Meyer, Berit Krauter, Claus Rüdiger, Ulrich Blaschke, Peter Schwarz
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Patent number: 9371437Abstract: A sheet containing a base layer containing polycarbonate and a flame retardant, wherein the flame retardant contains a compound of formula 1 wherein R1, R2, R3 and R4, represents an optionally halogen-substituted C1-C8 alkyl, C5-C6 cycloalkyl, C6-C10 aryl or C7-C12 aralkyl, R5 and R6, represents a C1-C4 alkyl, and Y represents a C1-C7 alkylidene, C1-C7 alkylene, C5-C12 cycloalkylidene, —O—, —S—, —SO—, —SO2—, —CO— or a residue of formula (2) or (3) wherein Z represents carbon and R21 and R22 can be selected for each Z individually and, represent hydrogen or C1-C6 alkyl, with the proviso that, on at least one Z atom, R21 and R22 are simultaneously alkyl and wherein the polycarbonate comprises a mixture of linear and branched polycarbonate and wherein the linear polycarbonate content is at least 40 wt. %, based on the total polycarbonate weight.Type: GrantFiled: November 3, 2010Date of Patent: June 21, 2016Assignee: Covestro Deutschland AGInventors: Alexander Meyer, Berit Krauter, Claus Rüdiger, Ulrich Blaschke, Peter Schwarz
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Patent number: 8741992Abstract: Disclosed is a composition comprising polycarbonate and from 0.0001 weight % to 0.1000 weight % of 2-(2,4-dihydroxy)phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.Type: GrantFiled: December 1, 2010Date of Patent: June 3, 2014Assignee: Bayer Intellectual Property GmbHInventors: Alexander Meyer, Claus Rüdiger, Ulrich Blaschke, Michael Wagner
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Patent number: 8530551Abstract: 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: GrantFiled: September 22, 2011Date of Patent: September 10, 2013Assignee: Bayer MaterialScience AGInventors: Thomas Eckel, Ulrich Grosser, Claus Rüdiger, Achim Feldermann, Dieter Wittmann
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Patent number: 8414823Abstract: The present invention concerns a process for producing a container having at least one layer and a top layer, wherein the layer contains polycarbonate and the top layer contains polyarylethersulfone or polyarylsulfone, characterised in that a) polycarbonate is melted on an extruder at 230-320° C., b) polyarylethersulfone or polyarylsulfone is melted on a further extruder, c) the melts obtained from steps a) and b) are shaped by coextrusion into a tube, which is then enclosed in a mould, d) the extrudate is inflated inside the mould and pressed against the wall of the mould, forming the shape of the container, and e) the container obtained from d) is trimmed and cooled, such containers and the use of the containers as bottles or medical devices.Type: GrantFiled: March 6, 2008Date of Patent: April 9, 2013Assignee: Bayer MaterialScience AGInventors: Claus Rüdiger, Heinrich Hähnsen, Alexander Meyer, Klaus Kraner
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Publication number: 20130005873Abstract: The invention relates to compositions containing polycarbonate and defined quantities of a triazine, and to the production and use thereof for producing moulded parts, in particular optical quality sheets and tubes, according to an extrusion methodType: ApplicationFiled: December 1, 2010Publication date: January 3, 2013Applicant: Bayer Intellcetual Property GmbHInventors: Alexander Meyer, Claus Rüdiger, Ulrich Blaschke, Michael Wagner
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Publication number: 20120244359Abstract: The present invention relates to compositions containing flame retardant polycarbonate, which are suitable for producing flame-resistant milk-white coloured plates.Type: ApplicationFiled: November 3, 2010Publication date: September 27, 2012Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Alexander Meyer, Berit Krauter, Claus Rüdiger, Ulrich Blaschke, Peter Schwarz
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Publication number: 20120231278Abstract: The present invention relates to compositions which contain flame-retardant polycarbonate and are suitable for the production of flame-resistant and milky-white sheets.Type: ApplicationFiled: November 3, 2010Publication date: September 13, 2012Applicant: Bayer Intellectual Property GmbHInventors: Ulrich Blaschke, Alexander Meyer, Claus Rüdiger, Berit Krauter
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Publication number: 20120213982Abstract: The invention relates to flame resistant polycarbonate plates characterised in that the flame-proof properties thereof are maintained even after long exposure to weathering.Type: ApplicationFiled: November 3, 2010Publication date: August 23, 2012Applicant: Bayer Intellectual Property GmbHInventors: Alexander Meyer, Berit Krauter, Claus Rüdiger, Ulrich Blaschke, Peter Schwarz
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Publication number: 20120074617Abstract: 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: ApplicationFiled: September 22, 2011Publication date: March 29, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN, Dieter WITTMANN
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Publication number: 20120074036Abstract: The present invention relates to battery boxes comprising flame-retardant compositions comprising A) linear and/or branched aromatic polycarbonate and/or aromatic polyester carbonate, B) at least one graft polymer, C) one or more phosphorus compounds, D) optionally one or more antidripping agents, optionally E) thermoplastic vinyl (co)polymer (E.1) and/or polyalkylene terephthalate (E.2), and F) optionally one or more further additives, wherein the composition is preferably free from rubber-free polyalkyl(alkyl)acrylate.Type: ApplicationFiled: September 22, 2011Publication date: March 29, 2012Applicant: BAYER MATERIALSCIENCE AGInventors: Thomas ECKEL, Ulrich GROSSER, Claus RÜDIGER, Achim FELDERMANN
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Patent number: 8044122Abstract: The present invention relates to a composition containing polycarbonate and from 0.05 wt. % to 0.5 wt. % of a UV absorber and from 0.0001 wt. % to 0.03 wt. % 2-[2-hydroxy-4-(2-ethylhexyl)oxy]phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.Type: GrantFiled: April 22, 2009Date of Patent: October 25, 2011Assignee: Bayer MaterialScience AGInventors: Claus Ruediger, Michael Wagner
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Patent number: 7790287Abstract: A solid sheet comprising transparent polycarbonate matrix, particles of a transparent polymer and an antistatic agent is disclosed. Characterized in that the refractive index of said matrix differs from that of said polymer, the sheet is suitable in making diffuser plate in flat screens.Type: GrantFiled: August 21, 2006Date of Patent: September 7, 2010Assignee: Bayer MaterialScience AGInventors: Claus Rüdiger, Heinz Pudleiner, Klaus Meyer, Jürgen Röhner, Tanja Grüter-Reetz, Fumika Kaneko
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Publication number: 20100086716Abstract: The present invention concerns a process for producing a container having at least one layer and a top layer, wherein the layer contains polycarbonate and the top layer contains polyarylethersulfone or polyarylsulfone, characterised in that a) polycarbonate is melted on an extruder at 230-320° C., b) polyarylethersulfone or polyarylsulfone is melted on a further extruder, c) the melts obtained from steps a) and b) are shaped by coextrusion into a tube, which is then enclosed in a mould, d) the extrudate is inflated inside the mould and pressed against the wall of the mould, forming the shape of the container, and e) the container obtained from d) is trimmed and cooled, such containers and the use of the containers as bottles or medical devices.Type: ApplicationFiled: March 6, 2008Publication date: April 8, 2010Applicant: Bayer MaterialScience AGInventors: Claus Rüdiger, Heinrich Hähnsen, Alexander Meyer, Klaus Kraner
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Patent number: 7691477Abstract: A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b), in which O-D-O and O-E-O independently denote a diphenolate group, -D- and -E- independently denote an aromatic group having 6 to 40 carbon atoms, k is a whole number from 1 to 1500, o stands for numbers from 1 to 1500, and m is z/o and n is (o-z)/o wherein z is 0 to o.Type: GrantFiled: October 6, 2005Date of Patent: April 6, 2010Assignee: Bayer MaterialScience AGInventors: Helmut-Werner Heuer, Rolf Wehrmann, Sylvia Braun, Claus Rüdiger, Marco Roelofs, Wolfgang Nising, Siegfried Anders, Jürgen Röhner, Rüdiger Gorny, Ralf Hufen
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Patent number: 7652082Abstract: A thermoplastic compositions containing polycarbonate and a UV absorbing compound conforming to Formula 1 wherein R denotes a branched or unbranched alkyl group with 4 to 10 carbon atoms is disclosed. The composition is suitable for making molded or extruded articles, including multilayered articles exhibiting improved weatherability.Type: GrantFiled: August 30, 2006Date of Patent: January 26, 2010Assignee: BASF SEInventors: Claus Rüdiger, Frank Buckel, Peter Schwarz, Jürgen Röhner, Tanja Grüter-Reetz
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Publication number: 20090258978Abstract: The present invention relates to a composition containing polycarbonate and from 0.05 wt. % to 0.5 wt. % of a UV absorber and from 0.0001 wt. % to 0.03 wt. % 2-[2-hydroxy-4-(2-ethylhexyl)oxy]phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.Type: ApplicationFiled: April 22, 2009Publication date: October 15, 2009Applicant: Bayer MaterialScience AGInventors: Claus Ruediger, Michael Wagner
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Patent number: 7582720Abstract: The present invention relates to a solid sheet prepared from a composition that includes: (a) a transparent polycarbonate; and (b) transparent polymeric particles having an optical density which differs from the transparent polycarbonate matrix material. The present invention also relates to use of such a solid sheet as a diffuser sheet in flat screens.Type: GrantFiled: February 24, 2006Date of Patent: September 1, 2009Assignee: Bayer Material Science AGInventors: Claus Rüdiger, Michael Prein, Marco Roelofs, Jürgen Röhner, Tanja Grüter-Reetz
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Publication number: 20080090958Abstract: The present invention concerns a compound made of transparent thermoplastic resin, particularly polycarbonate, and a combination of inorganic particles on the basis of silicone dioxide and polymer particles on an acrylate basis with core-shell morphology, as well as moulds made from this compound.Type: ApplicationFiled: July 18, 2005Publication date: April 17, 2008Applicant: BAYER MATERIALSCIENCE AGInventors: Claus Rüdiger, Rüdiger Gorny, Marco Roelofs, Ilona Roelofs, Lars Roelofs, Jürgen Röhner, Peter Schwarz
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Patent number: 7201964Abstract: A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle ?? (min) according to DIN 52305-A-AS of ?2.0 and a refracting power D? (min) according to DIN 52305-A-AZ of ?0.05, is prepared by extruding a molding composition comprising linear (co)polycarbonate having weight average molecular weight of 25,000 to 31,000.Type: GrantFiled: November 17, 2004Date of Patent: April 10, 2007Assignee: Bayer Materialscience AGInventors: Siegfried Anders, Rüdiger Gorny, Peter Schwarz, Claus Rüdiger, Jürgen Röhner