Patents by Inventor Martina Ebert
Martina Ebert 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: 20230108326Abstract: An aqueous polymer dispersion is based on copolymers of alkyl (meth)acrylates having long side chains and unsaturated carboxylic acids. The aqueous polymer dispersion also contains at least one cosolvent and an emulsifier system containing at least one emulsifier from the group of sulfosuccinates.Type: ApplicationFiled: March 25, 2021Publication date: April 6, 2023Applicant: Evonik Operations GmbHInventors: Helge Schenderlein, Gerold Schmitt, Martina Ebert, Hans-Jörg Oschmann
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Publication number: 20230103215Abstract: An aqueous polymer dispersion is based on alkyl (meth)acrylates having long side chains. The aqueous polymer dispersion also contains at least one cosolvent and an emulsifier system containing at least two emulsifiers from the group of sulfosuccinates.Type: ApplicationFiled: March 25, 2021Publication date: March 30, 2023Applicant: Evonik Operations GmbHInventors: Helge SCHENDERLEIN, Gerold Schmitt, Martina Ebert, Hans-Jörg Oschmann
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Patent number: 9349500Abstract: The invention describes a composition, especially in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalized triglycerides with an adjustable pot life, especially for cable potting compounds.Type: GrantFiled: May 21, 2012Date of Patent: May 24, 2016Assignee: Evonik Roehm GmbHInventors: Sabine Koemmelt, Gerold Schmitt, Thorben Schuetz, Martina Ebert, Volker Herzog, Joachim Knebel, Mario Gomez Andreu
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Patent number: 8674133Abstract: The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl(meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.Type: GrantFiled: March 3, 2010Date of Patent: March 18, 2014Assignee: Evonik Röhm GmbHInventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Dirk Broell, Guido Protzmann, Joachim Knebel, Thomas Kehr, Hans-Gerhard Stadler, Gerhard Koelbl, Benedikt Laux
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Publication number: 20140045993Abstract: The invention describes a composition, especially in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalized triglycerides with an adjustable pot life, especially for cable potting compounds.Type: ApplicationFiled: May 21, 2012Publication date: February 13, 2014Applicant: Evonik Roehm GmbHInventors: Sabine Koemmelt, Gerold Schmitt, Thorben Schuetz, Martina Ebert, Volker Herzog, Joachim Knebel, Mario Gomez Andreu
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Patent number: 8309669Abstract: A method for producing a swellable polymer by polymerizing a composition containing at least one polyalkylene glycol di(meth)acrylate having a weight-average molecular weight from 2500 g/mol to 10000 g/mol, wherein the polymer contains at least 50.0% by weight based on the total weight of the polymer of said at least one polyalkylene glycol di(meth)acrylate.Type: GrantFiled: May 9, 2008Date of Patent: November 13, 2012Assignee: Evonik Röhm GmbHInventors: Bardo Schmitt, Mario Gomez, Martina Ebert
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Publication number: 20120016071Abstract: The present invention relates to a (meth)acrylate polymer for preparing a coating composition, where the (meth)acrylate polymer comprises 0.5% to 20% by weight of units derived from (meth)acrylic monomers which in the alkyl radical have at least one double bond and 8 to 40 carbon atoms, 0.1% to 60% by weight of units derived from hydroxyl-containing monomers which have up to 9 carbon atoms, 0.1% to 95% by weight of units derived from (meth)acrylates having 1 to 12 carbon atoms in the alkyl radical, and 0.1% to 60% by weight of units derived from styrene monomers, based in each case on the weight of the (meth)acrylate polymer, and the (meth)acrylate polymer has a weight-average molecular weight in the range from 2000 to 60 000 g/mol. The present invention further relates to a coating composition and to a method of producing a coating. The present invention describes, furthermore, a coated article comprising a coating obtainable by the method.Type: ApplicationFiled: March 3, 2010Publication date: January 19, 2012Applicant: Evonik Roehm GmbHInventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Thorben Schuetz, Mario Gomez Andreu
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Publication number: 20110313195Abstract: The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl (meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.Type: ApplicationFiled: March 3, 2010Publication date: December 22, 2011Inventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Dirk Broell, Guido Protzmann, Joachim Knebel, Thomas Kehr, Hans-Gerhard Stadler, Gerhard Koelbl, Benedikt Laux
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Publication number: 20110217495Abstract: Moulded articles having reduced surface carbonization and longer retention of the mechanical properties and methods of producing same are presented. In an embodiment, the moulded article comprises polyamides with nanofillers, which can be produced by means of injection moulding or extrusion, in particular by extrusion blow moulding, coextrusion blow moulding or sequential blow moulding with and without 3D hose manipulation. For example, the polyamide moulding materials for the production of moulded articles have reduced surface carbonization in the moulded articles in subsequent long-term use at elevated temperatures.Type: ApplicationFiled: December 30, 2010Publication date: September 8, 2011Applicant: EMS-CHEMIE AGInventors: Georg Stoeppelmann, Ralph Kettl, Botho Hoffmann, Martina Ebert, Manfred Hewel
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Publication number: 20100163177Abstract: Use of a swellable polymer for sealing, wherein the polymer is obtainable by polymerizing a composition which comprises at least one polyalkylene glycol di(meth)acrylate having a weight-average molecular weight greater than 2500 g/mol.Type: ApplicationFiled: May 9, 2008Publication date: July 1, 2010Applicant: EVONIK ROEHM GMBHInventors: Bardo Schmitt, Mario Gomez, Martina Ebert
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Publication number: 20090318648Abstract: The invention relates to compositions comprising glycerol mono(meth)acrylate and hydroxyethyl methacrylate, including those with addition of further monomers, free-radically polymerized and subsequently crosslinked with isocyanates, to a process for preparing them and to their use as film-forming resins with particular media resistance.Type: ApplicationFiled: May 7, 2007Publication date: December 24, 2009Applicant: Evonik Roehm GmbHInventors: Marianne Omeis, Stefan Schrage, Martina Ebert
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Publication number: 20070167552Abstract: Moulded articles having reduced surface carbonization and longer retention of the mechanical properties and methods of producing same are presented. In an embodiment, the moulded article comprises polyamides with nanofillers, which can be produced by means of injection moulding or extrusion, in particular by extrusion blow moulding, coextrusion blow moulding or sequential blow moulding with and without 3D hose manipulation. For example, the polyamide moulding materials for the production of moulded articles have reduced surface carbonization in the moulded articles in subsequent long-term use at elevated temperatures.Type: ApplicationFiled: October 17, 2006Publication date: July 19, 2007Inventors: Georg Stoeppelmann, Ralph Ketti, Botho Hoffmann, Martina Ebert, Manfred Hewel
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Publication number: 20060100334Abstract: A polyamide molding compound is disclosed having a partially crystalline poly-amide, which includes partially aromatic copolyamides and classic mineral fillers and is distinguished in that the mineral filler is ultrafine chalk (CaCO3) and has an average particle size of at most 100 nm. The polyamide molding compound preferably includes at most 40 weight-percent ultrafine chalk. This polyamide molding compound is preferably used for the production of reflectors and/or sub-reflectors of vehicle driving illuminators with subsequent, direct metal coating.Type: ApplicationFiled: August 26, 2003Publication date: May 11, 2006Applicant: EMS-CHEMIE AGInventors: Martina Ebert, Georg Stoppelmann
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Publication number: 20060100337Abstract: A method of producing polyamide nanocomposites from partially crystalline polyamides and organically modified layered silicates in a double screw extruder is disclosed, a first part of the polyamides being dosed into the extruder intake and melted and the organically modified layered silicate being admixed with the melt of the polyamides and then a second part of the polyamides being added to the mixture. The method according to the present invention is distinguished in that the resulting melt is subjected to filtration. Injection molded parts and vehicle driving illuminator reflectors made of the polyamide nanocomposite molding compound produced according to the present invention are also disclosed.Type: ApplicationFiled: September 1, 2003Publication date: May 11, 2006Applicant: EMS-CHEMIE AGInventors: Georg Stoppelmann, Martina Ebert, Michael Kaisser
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Patent number: 6956081Abstract: The invention relates to reinforced thermoplastic polyamide molding materials having simultaneously good surface quality, good flowability and good heat dimensional stability, from polyamide compositions on the basis of semi-crystalline semi-aromatic polyamides and copolyamides having a melting point of at least 240° C. (A) and amorphous (co)polyamides (B). The molded articles produced by the molding materials according to the present invention are used for production of interior and exterior parts, especially having structural or mechanical function in the fields of electric components, electronics, telecommunication, automobile, transport, packaging, domestic, furniture, sports, apparatus engineering, machine construction, heating installation, air conditioning, and sanitation.Type: GrantFiled: March 13, 2002Date of Patent: October 18, 2005Assignee: Ems-Chemie AGInventors: Martina Ebert, Reinhard Furst, Franz Felsberger
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Publication number: 20020173584Abstract: The invention relates to reinforced thermoplastic polyamide molding materials having simultaneously good surface quality, good flowability and good heat dimensional stability, from polyamide compositions on the basis of semi-crystalline semi-aromatic polyamides and copolyamides having a melting point of at least 240° C. (A) and amorphous (co)polyamides (B).Type: ApplicationFiled: March 13, 2002Publication date: November 21, 2002Inventors: Martina Ebert, Reinhard Furst, Franz Felsberger