Patents by Inventor Volker Altstaedt
Volker Altstaedt 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: 12195623Abstract: The present invention relates to a composition for producing a thermoplastic moulding compound containing: A) an aromatic polycarbonate and/or aromatic polyester carbonate containing carboxy groups, wherein the polycarbonate has an acid value ranging from 0.5 to 10 mg of potassium hydroxide/g, determined in dichloromethane/ethanol as the solvent by means of potentiometric titration in accordance with DIN EN ISO 2114, method A in version 2002-06 with ethanolic potassium hydroxide solution at ambient temperature, and a weight-average molecular mass (Mw), determined by gel permeation chromatography at ambient temperature in dichloromethane as the solvent using a BPA polycarbonate standard, ranging from 15,000 to 40,000 g/mol, and B) a polymethyl methacrylate copolymer containing structural units derived from glycidyl methacrylate, wherein the copolymer has an epoxide equivalent weight, determined in dichloromethane as the solvent at ambient temperature in accordance with DIN EN 1877-1 in version 2000-12, of 0.Type: GrantFiled: June 27, 2022Date of Patent: January 14, 2025Assignee: Covestro Deutschland AGInventors: Andreas Seidel, Tobias Bubmann, Jan Heijl, Marina Reithmeier, Volker Altstädt
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Publication number: 20240286323Abstract: The invention refers to a method for producing expanded polymer pellets, which comprises the following steps: melting a polymer comprising a polyamide; adding at least one blowing agent; expanding the melt through at least one die for producing an expanded polymer; and pelletizing the expanded polymer. The invention further concerns polymer pellets produced with the method as well as their use, e.g. for the production of cushioning elements for sports apparel, such as for producing soles or parts of soles of sports shoes. A further aspect of the invention concerns a method for the manufacture of molded components, comprising loading pellets of an expanded polymer material into a mold, and connecting the pellets by providing heat energy, wherein the expanded polymer material of the pellets or beads comprises a chain extender. The molded components may be used in broad ranges of application.Type: ApplicationFiled: April 24, 2024Publication date: August 29, 2024Inventors: Christopher Edward Holmes, Tru Huu Minh Le, Sabrina Kerling, Dharan Kirupanantham, Volker Altstädt, Amir Fathi, Daniel Raps, Clemens Keilholz, Thomas Koeppl, Paul Smith, Jan Hill, Angus Wardlaw, Daniel Stephen Price, James Tarrier, Christopher Robertson
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Publication number: 20240270961Abstract: The present invention relates to a composition for producing a thermoplastic moulding compound containing: A) an aromatic polycarbonate and/or aromatic polyester carbonate containing carboxy groups, wherein the polycarbonate has an acid value ranging from 0.5 to 10 mg of potassium hydroxide/g, determined in dichloromethane/ethanol as the solvent by means of potentiometric titration in accordance with DIN EN ISO 2114, method A in version 2002-06 with ethanolic potassium hydroxide solution at ambient temperature, and a weight-average molecular mass (Mw), determined by gel permeation chromatography at ambient temperature in dichloromethane as the solvent using a BPA polycarbonate standard, ranging from 15,000 to 40,000 g/mol, and B) a polymethyl methacrylate copolymer containing structural units derived from glycidyl methacrylate, wherein the copolymer has an epoxide equivalent weight, determined in dichloromethane as the solvent at ambient temperature in accordance with DIN EN 1877-1 in version 2000-12, of 0.Type: ApplicationFiled: June 27, 2022Publication date: August 15, 2024Inventors: Andreas Seidel, Tobias Bubmann, Jan Heijl, Marina Reithmeier, Volker Altstädt
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Patent number: 11992981Abstract: The invention refers to a method for producing expanded polymer pellets, which comprises the following steps: melting a polymer comprising a polyamide; adding at least one blowing agent; expanding the melt through at least one die for producing an expanded polymer; and pelletizing the expanded polymer. The invention further concerns polymer pellets produced with the method as well as their use, e.g. for the production of cushioning elements for sports apparel, such as for producing soles or parts of soles of sports shoes. A further aspect of the invention concerns a method for the manufacture of molded components, comprising loading pellets of an expanded to polymer material into a mold, and connecting the pellets by providing heat energy, wherein the expanded polymer material of the pellets or beads comprises a chain extender. The molded components may be used in broad ranges of application.Type: GrantFiled: August 11, 2021Date of Patent: May 28, 2024Assignee: adidas AGInventors: Christopher Edward Holmes, Tru Huu Minh Le, Sabrina Kerling, Dharan Kirupanantham, Volker Altstädt, Amir Fathi, Daniel Raps, Clemens Keilholz, Thomas Koeppl, Paul Smith, Jan Hill, Angus Wardlaw, Daniel Stephen Price, James Tarrier, Christopher Robertson
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Publication number: 20240132661Abstract: The present invention relates to a composition for producing a thermoplastic molding compound containing A) at least one aromatic polycarbonate and/or aromatic polyester carbonate containing at least 500 ppmw of phenolic OH groups, wherein the weight-average molecular weight Mw of component A determined by gel permeation chromatography at room temperature in dichloromethane as solvent using a polycarbonate calibration standard is in the range from 15 000 to 40 000 g/mol, B) at least one copolymer containing structural units derived from methyl methacrylate and 0.Type: ApplicationFiled: December 13, 2021Publication date: April 25, 2024Inventors: Andreas Seidel, Mandy Gieler, Tobias Bubmann, Volker Altstädt
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Publication number: 20230407038Abstract: The invention relates to expandable polymer particles based on styrene polymers, to a process for the preparation thereof and to the use of the expandable polymer particles in a molded foam part. The polymer particles contain A) 87 to 99 wt. % of one or more styrene polymers (A), in relation to the total weight of (A), (B) and (C); B) 1 to 10 wt. % of one or more foaming agents (B); C) 0 to 3 wt. % of one or more nucleators or nucleating agents C); and optionally further additives (Z) in amounts which do not impair the domain formation and the foam structure resulting therefrom.Type: ApplicationFiled: October 28, 2021Publication date: December 21, 2023Inventors: Bianca WILHELMUS, Yvonne VAN VEEN, Dominik DOERR, Sebastian GROESCHEL, Tobias STANDAU, Volker ALTSTAEDT, Regino WEBER, Thomas NEUMEYER, Peter SCHREIER, Max LOEHNER
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Publication number: 20220402196Abstract: A consumable filament and process for using the consumable filament in an extrusion-based additive manufacturing system made from or containing a heterophasic polypropylene composition having a xylene soluble content ranging from 15 wt % to 50 wt %, a melt flow rate MFR L ranging from 0.5 to 100 g/10 min, an intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.5 to 6.0 dl/g, and an ethylene content ranging from 10 wt % to 50 wt %.Type: ApplicationFiled: September 28, 2020Publication date: December 22, 2022Applicant: Basell Polyolefine GmbHInventors: Dieter Langenfelder, Jürgen Rohrmann, Karsten Schmitz, Carl Schirmeister, Yannic Kessler, Erik Licht, Christoph Callsen, Volker Altstädt
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Publication number: 20210370561Abstract: The invention refers to a method for producing expanded polymer pellets, which comprises the following steps: melting a polymer comprising a polyamide; adding at least one blowing agent; expanding the melt through at least one die for producing an expanded polymer; and pelletizing the expanded polymer. The invention further concerns polymer pellets produced with the method as well as their use, e.g. for the production of cushioning elements for sports apparel, such as for producing soles or parts of soles of sports shoes. A further aspect of the invention concerns a method for the manufacture of molded components, comprising loading pellets of an expanded to polymer material into a mold, and connecting the pellets by providing heat energy, wherein the expanded polymer material of the pellets or beads comprises a chain extender. The molded components may be used in broad ranges of application.Type: ApplicationFiled: August 11, 2021Publication date: December 2, 2021Inventors: Christopher Edward Holmes, Tru Huu Minh Le, Sabrina Kerling, Dharan Kirupanantham, Volker Altstädt, Amir Fathi, Daniel Raps, Clemens Keilholz, Thomas Koeppl, Paul Smith, Jan Hill, Angus Wardlaw, Daniel Stephen Price, James Tarrier, Christopher Robertson
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Patent number: 11117294Abstract: The invention refers to a method for producing expanded polymer pellets, which comprises the following steps: melting a polymer comprising a polyamide; adding at least one blowing agent; expanding the melt through at least one die for producing an expanded polymer; and pelletizing the expanded polymer. The invention further concerns polymer pellets produced with the method as well as their use, e.g. for the production of cushioning elements for sports apparel, such as for producing soles or parts of soles of sports shoes. A further aspect of the invention concerns a method for the manufacture of molded components, comprising loading pellets of an expanded polymer material into a mold, and connecting the pellets by providing heat energy, wherein the expanded polymer material of the pellets or beads comprises a chain extender. The molded components may be used in broad ranges of application.Type: GrantFiled: August 24, 2015Date of Patent: September 14, 2021Assignee: adidas AGInventors: Christopher Edward Holmes, Tru Huu Minh Le, Sabrina Kerling, Dharan Kirupanantham, Volker Altstädt, Amir Fathi, Daniel Raps, Clemens Keilholz, Thomas Koeppl, Paul Leonard Michael Smith, Jan Hill, Angus Wardlaw, Daniel Stephen Price, James Tarrier, Christopher Robertson
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Publication number: 20170259474Abstract: The invention refers to a method for producing expanded polymer pellets, which comprises the following steps: melting a polymer comprising a polyamide; adding at least one blowing agent; expanding the melt through at least one die for producing an expanded polymer; and pelletizing the expanded polymer. The invention further concerns polymer pellets produced with the method as well as their use, e.g. for the production of cushioning elements for sports apparel, such as for producing soles or parts of soles of sports shoes. A further aspect of the invention concerns a method for the manufacture of molded components, comprising loading pellets of an expanded polymer material into a mold, and connecting the pellets by providing heat energy, wherein the expanded polymer material of the pellets or beads comprises a chain extender. The molded components may be used in broad ranges of application.Type: ApplicationFiled: August 24, 2015Publication date: September 14, 2017Inventors: Christopher Edward HOLMES, Tru Huu Minh LE, Sabrina KERLING, Dharan KIRUPANANTHAM, Volker ALTSTÄDT, Amir FATHI, Daniel RAPS, Clemens KEILHOLZ, Thomas KOEPPL, Paul Leonard Michael SMITH, Jan HILL, Angus WARDLAW, Daniel Stephen PRICE, James TARRIER, Christopher ROBERTSON
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Publication number: 20130143984Abstract: The invention relates to curable compositions which comprise epoxy resins, amino hardeners, and a phosphonate of the formula I. Addition of phosphonate of the formula I can give cured epoxy resins which have not only improved flame retardants but also an increased glass transition temperature when comparison is made with the corresponding resins without said addition.Type: ApplicationFiled: June 7, 2012Publication date: June 6, 2013Applicant: BASF SEInventors: Michael Henningsen, Achim Kaffee, Jean-Francois Stumbe, Manfred Doering, Alexander Schmidt, Lin Zang, Volker Altstaedt, Johannes Kraemer
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Patent number: 5532296Abstract: Bismaleimide resin systems and fiber reinforced prepregs prepared therefrom having exceptional toughness are prepared by dispersing into a bismaleimide base resin system preformed functionalized elastomer particles having a T.sub.g of less than 10.degree. C.Type: GrantFiled: September 24, 1993Date of Patent: July 2, 1996Assignee: Cytec Technology Corp.Inventors: Hans G. Recker, Helmut Tesch, Thomas Weber, Volker Altstaedt, Jack D. Boyd
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Patent number: 5026789Abstract: A curable impact modified epoxy resin mixture suitable for producing high performance composites is composed ofA. an aromatic epoxy compound,B. an amine type curing agent,C. from 10 to 40% by weight of an aromatic thermoplastic oligomer which contains reactive groups, preferably a polyether sulfone, andD. from 0.1 to 10% by weight of a high molecular weight emulsifier, preferably a phenoxy resin, an epoxy resin or a thermoplastic copolymer, which is compatible not only with the epoxy compound A but also with oligomer C.Type: GrantFiled: December 15, 1989Date of Patent: June 25, 1991Assignee: BASF AktiengesellschaftInventors: Thomas Weber, Walter Heckmann, Jurgen Mertes, Helmut Tesch, Volker Altstaedt, Wolfgang Eberle, Thomas Folda, Herbert Stutz, Hans-Gert Recker
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Patent number: 5003017Abstract: Heat-curable bismaleimide resins contain a bismaleimide and a heterocyclic comonomer having terminal alkenyl or alkenyloxy groups. A preferred comonomer is 2,6-bis-(2-propenylphenoxy)-pyridine. The bismaleimide resins are suitable for the production of high performance composites.Type: GrantFiled: July 26, 1989Date of Patent: March 26, 1991Assignee: BASF AktiengesellschaftInventors: Philipp Eisenbarth, Gerd Linden, Volker Altstaedt, Roland Peter