Patents by Inventor Rüdiger Carloff
Rüdiger Carloff 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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Publication number: 20240317987Abstract: A transparent acrylic-based polymer composition having an increased resistance to alcohols, oils and fats can be made. The polymer composition has an acrylic-based polymer A, which has at least one alkyl (meth) acrylate; an olefinic copolymer B, which has at least one olefinic monomer and at least one polar monomer selected from unsaturated carboxylic acids, esters of unsaturated carboxylic acids, and anhydrides of unsaturated carboxylic acids, and a particulate multiphase graft copolymer C, which has a core and at least one shell, having at least one alkyl (meth) acrylate.Type: ApplicationFiled: July 14, 2022Publication date: September 26, 2024Applicants: Röhm Gmbh, Roehm America LLCInventors: Rüdiger CARLOFF, Werner Arnold, Kay Bernhard
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Publication number: 20240043591Abstract: A process can be used for manufacturing an acrylic copolymer having increased heat resistance, high transparency, and improved adhesion to metal surfaces. The process involves polymerizing a monomer mixture, optional heating of the copolymer mixture, and removing volatile components from the copolymer mixture by degassing. Moulding compositions containing this copolymer are highly suitable for manufacturing optical elements for optoelectronic devices containing acrylic and metallic or ceramic parts.Type: ApplicationFiled: December 8, 2021Publication date: February 8, 2024Applicant: Röhm GmbHInventors: Rüdiger Carloff, Werner Arnold, Gerald Dietrich
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Patent number: 11807699Abstract: A transparent acrylic-based polymer composition has an increased resistance to alcohols, oils and fats. The polymer composition contains: (A) a copolymer of alkyl(meth)acrylates, aromatic vinyl monomer and unsaturated carboxylic acid anhydride; (B) a copolymer containing aromatic vinyl monomer and a vinyl cyanide monomer; and (C) a particulate core-shell type graft copolymer containing a butadiene-based core as a rubbery phase and a copolymer containing alkyl(meth)acrylates and, optionally, aromatic vinyl monomer as a hard phase. The components A and B form a polymer matrix and the particulate core-shell type graft copolymer C is dispersed in said polymer matrix.Type: GrantFiled: December 11, 2019Date of Patent: November 7, 2023Assignee: Röhm GmbHInventor: Rüdiger Carloff
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Patent number: 11780944Abstract: A process can be used for producing optical molding materials on the basis of methyl methacrylate (MMA). The MMA produced by an optimized method and the molding materials feature in particular a very low yellowness index. This MMA has been produced by direct oxidative esterification of methacrolein. An optimized workup of the reactor output from the oxidative esterification of methacrolein can be used for removing particularly discoloring byproducts. This process moreover has the advantage that fewer demands are placed on plant apparatus configuration.Type: GrantFiled: July 22, 2022Date of Patent: October 10, 2023Assignee: Röhm GmbHInventors: Steffen Krill, Belaid Ait Aissa, Florian Zschunke, Gerhard Kölbl, Rüdiger Carloff
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Publication number: 20230303740Abstract: A copolymer has increased heat resistance, high transparency, and low haze values. Moulding compositions can contain this copolymer and a process can be used for the manufacturing this copolymer. The moulding compositions are highly suitable for the manufacturing of optical elements used in various optical devices including primary optics, secondary optics, tertiary optics, as well as light guides.Type: ApplicationFiled: June 23, 2021Publication date: September 28, 2023Applicant: Röhm GmbHInventor: Rüdiger CARLOFF
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Publication number: 20220356282Abstract: A process can be used for producing optical molding materials on the basis of methyl methacrylate (MMA). The MMA produced by an optimized method and the molding materials feature in particular a very low yellowness index. This MMA has been produced by direct oxidative esterification of methacrolein. An optimized workup of the reactor output from the oxidative esterification of methacrolein can be used for removing particularly discoloring byproducts. This process moreover has the advantage that fewer demands are placed on plant apparatus configuration.Type: ApplicationFiled: July 22, 2022Publication date: November 10, 2022Applicant: Röhm GmbHInventors: Steffen KRILL, Belaid Ait Aissa, Florian Zschunke, Gerhard Kõlbl, Rüdiger Carloff
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Patent number: 11427664Abstract: A process is useful for producing optical molding materials on the basis of methyl methacrylate (MMA), wherein this MMA has been produced by an optimized method and the molding materials feature in particular a very low yellowness index. This MMA has been produced by direct oxidative esterification of methacrolein. In particular, an optimized workup of the reactor output from the oxidative esterification of methacrolein is useful for removing particularly discoloring byproducts. This process moreover has the advantage that fewer demands than described in related art are placed on plant apparatus configuration.Type: GrantFiled: August 20, 2018Date of Patent: August 30, 2022Assignee: Röhm GmbHInventors: Steffen Krill, Belaid Ait Aissa, Florian Zschunke, Gerhard Kölbl, Rüdiger Carloff
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Publication number: 20220033551Abstract: A transparent acrylic-based polymer composition has an increased resistance to alcohols, oils and fats. The polymer composition contains: (A) a copolymer of alkyl(meth)acrylates, aromatic vinyl monomer and unsaturated carboxylic acid anhydride; (B) a copolymer containing aromatic vinyl monomer and a vinyl cyanide monomer; and (C) a particulate core-shell type graft copolymer containing a butadiene-based core as a rubbery phase and a copolymer containing alkyl(meth)acrylates and, optionally, aromatic vinyl monomer as a hard phase. The components A and B form a polymer matrix and the particulate core-shell type graft copolymer C is dispersed in said polymer matrix.Type: ApplicationFiled: December 11, 2019Publication date: February 3, 2022Applicant: Röhm GmbHInventor: Rüdiger Carloff
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Publication number: 20210095095Abstract: A light emitting element includes edge-lit luminaires of transparent light guiding material having an increased resistance against UV-light and high temperatures. The light emitting element can be advantageously employed as a light source in outdoor applications such as traffic signs, street lights, advertising panels, outdoor illumination means or in exterior vehicle lighting.Type: ApplicationFiled: January 22, 2019Publication date: April 1, 2021Applicants: Röhm GmbH, Roehm America LLCInventors: René Kogler, Rüdiger Carloff, Christopher Walby
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Publication number: 20210032386Abstract: A process is useful for producing optical molding materials on the basis of methyl methacrylate (MMA), wherein this MMA has been produced by an optimized method and the molding materials feature in particular a very low yellowness index. This MMA has been produced by direct oxidative esterification of methacrolein. In particular, an optimized workup of the reactor output from the oxidative esterification of methacrolein is useful for removing particularly discoloring byproducts. This process moreover has the advantage that fewer demands than described in related art are placed on plant apparatus configuration.Type: ApplicationFiled: August 20, 2018Publication date: February 4, 2021Applicant: Röhm GmbHInventors: Steffen Krill, Belaid Ait Aissa, Florian Zschunke, Gerhard Kölbl, Rüdiger Carloff
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Publication number: 20160122525Abstract: The present invention relates to a composite system, preferably a multilayer film, having high impact resistance and heat distortion resistance, and to a process for production thereof and to the use thereof.Type: ApplicationFiled: May 24, 2013Publication date: May 5, 2016Applicant: Evonik Roehm GmbHInventors: Rüdiger CARLOFF, Gerald DIETRICH, Michael WICKER, Chih-Lung CHEN
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Patent number: 7879938Abstract: Compositions comprising an organic polymer as the matrix and inorganic particles as the filler and exhibiting in mixture a) 20 to 99.9% by wt. of an organic polymer and b) 0.1 to 80% by wt. of inorganic particles, where the sum of the constituents a) and b) amounts to 100% by wt.; and optionally c) 0 to 100 parts by weight of b) of various additives, in which case the content of the additives c) relates to the sum of a) and b), calculated as 100 parts by weight. characterized in that the composition can be obtained by incorporating particles and optionally other additives into the polymer matrix, in which case the particles to be incorporated i) are aggregates of globular primary particles; ii) the size of the primary particles is in a range of 0.5 nm to less than 100 nm; iii) the volume-weighted median value d50 of the particles is in a range of greater than 0.50 ?m to 0.Type: GrantFiled: July 10, 2007Date of Patent: February 1, 2011Assignee: Evonik Degussa GmbHInventors: Harald Häger, Franz-Erich Baumann, Wolfgang Lortz, Werner Höss, Michael Wicker, Rüdiger Carloff, Uwe Schneider