Patents by Inventor Helmut Thullen
Helmut Thullen 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: 8309643Abstract: The present invention relates to polyamide moulding compounds which have very low distortion with good mechanical properties. This is achieved by a combination of transparent polyamide with fibrous reinforcing materials and also particulate fillers. The moulding compounds according to the invention are used for the production of any moulded articles, semi-finished products or finished products.Type: GrantFiled: August 4, 2010Date of Patent: November 13, 2012Assignee: EMS-Chemie AGInventors: Helmut Thullen, Christian Rytka, Friedrich-Severin Buehler, Ralf Hala
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Patent number: 8138259Abstract: The invention relates to a housing from a polyamide molding compound containing 70 to 99.5% by weight of at least one thermoplastic polyamide and 0.5 to 30% by weight of at least one polyamide oligomer with linear or branched chain structure with a number average molar mass of 800 to 5000 g/mol with basic end groups which are at least partially NH2 end groups, and carboxyl end groups, one of these end groups being present in excess and the concentration of the end group present in excess being at most 300 mmol/kg.Type: GrantFiled: August 28, 2009Date of Patent: March 20, 2012Assignee: Ems-Chemie AGInventors: Paul Schwitter, Georg Stoeppelmann, Alex Stolarz, Helmut Thullen
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Patent number: 7910652Abstract: The invention relates to a polyamide moulding compound containing 70 to 99.5% by weight of at least one thermoplastic polyamide and 0.5 to 30% by weight of at least one polyamide oligomer with linear or branched chain structure with a number average molar mass of 800 to 5000 g/mol with basic end groups which are at least partially NH2 end groups, and carboxyl end groups, one of these end groups being present in excess and the concentration of the end group present in excess being at most 300 mmol/kg.Type: GrantFiled: March 24, 2006Date of Patent: March 22, 2011Assignee: Ems-Chemie AGInventors: Paul Schwitter, Georg Stoeppelmann, Alex Stolarz, Helmut Thullen
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Publication number: 20100297373Abstract: The present invention relates to polyamide moulding compounds which have very low distortion with good mechanical properties. This is achieved by a combination of transparent polyamide with fibrous reinforcing materials and also particulate fillers. The moulding compounds according to the invention are used for the production of any moulded articles, semi-finished products or finished products.Type: ApplicationFiled: August 4, 2010Publication date: November 25, 2010Inventors: Helmut Thullen, Christian Rytka, Friedrich-Severin Buehler, Ralf Hala
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Publication number: 20100028646Abstract: The invention relates to a housing from a polyamide moulding compound containing 70 to 99.5% by weight of at least one thermoplastic polyamide and 0.5 to 30% by weight of at least one polyamide oligomer with linear or branched chain structure with a number average molar mass of 800 to 5000 g/mol with basic end groups which are at least partially NH2 end groups, and carboxyl end groups, one of these end groups being present in excess and the concentration of the end group present in excess being at most 300 mmol/kg.Type: ApplicationFiled: August 28, 2009Publication date: February 4, 2010Applicant: EMS-CHEMIE AGInventors: Paul SCHWITTER, Georg Stoeppelmann, Alex Stolarz, Helmut Thullen
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Publication number: 20090131569Abstract: The invention relates to a polyamide moulding compound containing 70 to 99.5% by weight of at least one thermoplastic polyamide and 0.5 to 30% by weight of at least one polyamide oligomer with linear or branched chain structure with a number average molar mass of 800 to 5000 g/mol with basic end groups which are at least partially NH2 end groups, and carboxyl end groups, one of these end groups being present in excess and the concentration of the end group present in excess being at most 300 mmol/kg.Type: ApplicationFiled: March 24, 2006Publication date: May 21, 2009Applicant: EMS-CHEMIE AGInventors: Paul Schwitter, Georg Stoepelmann, Alex Stolarz, Helmut Thullen
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Publication number: 20080021143Abstract: The present invention relates to polyamide moulding compounds which have very low distortion with good mechanical properties. This is achieved by a combination of transparent polyamide with fibrous reinforcing materials and also particulate fillers. The moulding compounds according to the invention are used for the production of any moulded articles, semi-finished products or finished products.Type: ApplicationFiled: July 10, 2007Publication date: January 24, 2008Inventors: Helmut Thullen, Christian Rytka, Friedrich-Severin Buehler, Ralf Hala
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Publication number: 20070294841Abstract: The present invention relates to a novel composition of dye baths or processing baths and a process for tinting, dyeing or doping of moulded components with functional additives in these aqueous dipping baths or processing baths. The moulded components contain transparent or translucent (co)polyamides. If the moulded components should be tinted or dyed according to an embodiment of the invention, the dyeing can be performed as homogeneous dyeing or as gradient dyeing. The process according to the present invention is particularly suitable for producing high-value objects like ophthalmic lenses, sun lenses for eyeglasses, magnifying glasses, all kinds of inspection glasses, polarization films and display films, particularly if changing depths of color (gradients) are desired. This generating of a dyeing gradient requires dyeing in a dipping process, whereby the desired depth of color is achieved by multiple times of dipping the surface areas of the moulded article in the dye bath.Type: ApplicationFiled: September 7, 2007Publication date: December 27, 2007Inventors: Helmut Thullen, Friedrich Buehler, Marcel Grand
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Patent number: 7132141Abstract: Two-layered or three-layered polymer tubing for use as a pressurized fluid conduit in automobiles can be either walled or have walls continuously or partially corrugated. The tubing has an outer layer of a hard polymer molding material and an inner layer of a soft rubber-like polymer or a polymer mixture. The inner layer can be provided on the innerside with a layer of a thermoplastic adhesion-modified elastomer composition. The a materials are selected for the layers to provide a so-called “hard-soft-combination”. The rubber-like polymer composition has a hardness in the range of 30 Shore A to 60 Shore D, especially of about 30 Shore A to 90 Shore A, the compositions being selected so that they are processable by coextrusion or the so-called conex method and adhere directly to each other non-positively or positively fitted, i. e. without additional bonding agent, without delaminating.Type: GrantFiled: May 7, 2003Date of Patent: November 7, 2006Assignee: Ems-Chemie AGInventors: Helmut Thullen, Georg Stoeppelmann, Ralph Kettl, Michael Hoffmann
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Publication number: 20060230553Abstract: The present invention relates to a novel composition of dye baths or processing baths and a process for tinting, dyeing or doping of moulded components with functional additives in these aqueous dipping baths or processing baths. The moulded components contain transparent or translucent (co)polyamides. If the moulded components should be tinted or dyed according to an embodiment of the invention, the dyeing can be performed as homogeneous dyeing or as gradient dyeing. The process according to the present invention is particularly suitable for producing high-value objects like ophthalmic lenses, sun lenses for eyeglasses, magnifying glasses, all kinds of inspection glasses, polarization films and display films, particularly if changing depths of color (gradients) are desired. This generating of a dyeing gradient requires dyeing in a dipping process, whereby the desired depth of color is achieved by multiple times of dipping the surface areas of the moulded article in the dye bath.Type: ApplicationFiled: April 12, 2006Publication date: October 19, 2006Inventors: Helmut Thullen, Friedrich Buehler, Marcel Grand
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Patent number: 6842574Abstract: The car industry increasingly uses plastic optical fibers whose protective sheathing (4) is made of a polyamide. As unmodified PA poorly adheres to the fluoropolymers often used as the material for the fiber cladding (3), the plastic optical fiber (2, 3) moves in relation to the protective sheathing (4) when the temperature varies. To suppress this effect referred to as “pistoning”, the connectors and holders of the optical fibers must apply very large clamping forces to the protective sheathing (4) and the plastic optical fiber (2, 3) arranged therein, resulting in an increased signal attenuation. The use of a modified PA can clearly improve the adherence of the protective sheathing (4) to the cladding (3) of a plastic optical fiber which is made of a fluoropolymer.Type: GrantFiled: March 30, 2000Date of Patent: January 11, 2005Assignee: EMS-Chemie AGInventors: Hans-Matthias Horn, Joachim Schaefer, Ilona Schmidt, Helmut Thullen, Volker Eichhorn, Thomas Wutke, Georg Stoeppelmann
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Publication number: 20030232207Abstract: Two-layered or three-layered polymer tubing for use as a pressurized fluid conduit in automobiles can be either walled or have walls continuously or partially corrugated. The tubing has an outer layer of a hard polymer molding material and an inner layer of a soft rubber-like polymer or a polymer mixture. The inner layer can be provided on the innerside with a layer of a thermoplastic adhesion-modified elastomer composition. The a materials are selected for the layers to provide a so-called “hard-soft-combination”. The rubber-like polymer composition has a hardness in the range of 30 Shore A to 60 Shore D, especially of about 30 Shore A to 90 Shore A, the compositions being selected so that they are processable by coextrusion or the so-called conex method and adhere directly to each other non-positively or positively fitted, i. e. without additional bonding agent, without delaminating.Type: ApplicationFiled: May 7, 2003Publication date: December 18, 2003Applicant: EMS-CHEMIE AGInventors: Helmut Thullen, Georg Stoeppelmann, Ralph Kettl, Michael Hoffmann
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Patent number: 5373047Abstract: A reusable blasting medium of a thermoplastically processable polymer granulate filled with finely divided metal, the metal particles being coated with an adhesion promoter. The medium is suitable for the deflashing of cast metal parts, in particular ground, die-cast metal parts. The invention further relates to a process for the production of the blasting medium, including intimately mixing a polymer granulate of a commercial thermoplast, such as polyamide and/or polycarbonate, with a metal such as iron, copper, tin, stainless steel, brass, and/or bronze. The particles are coated with an adhesion promoter, the metal particles are in finely divided spherical form or a powder and the particle sizes are 0.01 to 0.5 mm. This mixture is extruded in the usual manner, preferably as a ribbon, and thereafter is reduced to the desired form and size. The blasting medium has the form of cubic particles of an edge length of 0.75 to 2.0 mm.Type: GrantFiled: December 21, 1992Date of Patent: December 13, 1994Assignee: Ems-Inventa AGInventors: Albert Schnelle, Helmut Thullen
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Patent number: 5177178Abstract: Rigid, amorphous copolyamides which can be produced in a single-stage polycondensation reaction with a high glass transition temperature and low water absorption capacity, based on cycloaliphatic diamines, dimerized fatty acids and aromatic dicarboxylic acids.Type: GrantFiled: July 24, 1991Date of Patent: January 5, 1993Assignee: EMS-Inventa AGInventors: Helmut Thullen, Eduard Schmid
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Patent number: 5177177Abstract: Rigid, amorphous copolyamides, which can be produced in a single-stage polycondensation reaction, having a high glass transition temperature and low water absorption capacity, consisting essentially of cycloaliphatic diamines, dimerized fatty acids, and aromatic dicarboxylic acids, and a method for the manufacture thereof.Type: GrantFiled: July 24, 1991Date of Patent: January 5, 1993Assignee: EMS-Inventa AGInventors: Helmut Thullen, Eduard Schmid