Patents Assigned to Inventa AG
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Publication number: 20140090370Abstract: An actuator having a housing, a connecting element, a shape memory element which changes shape when heated, a heating element and a heat conducting element. The shape memory element is configured in substantially elongate form and is arranged in the housing such that it displaces the connecting element when it changes shape. The heating element, when activated, heats the shape memory element. The heat conducting element is in contact with the shape memory element at least some of the time, at a contact surface which is larger than 0.1 times the total surface of the shape memory element. While in contact with the shape memory element, the heat conducting element bears at least partially displaceably against the latter and has a free surface which is not in contact with either the shape memory element or the heating element that is at least 1.6 times larger than its contact surface.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicants: INVENTAS AG, SIEMENS AKTIENGESELLSCHAFTInventors: Stefan HAGMANN, Robert PARTEL, Fabian RISCH
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Patent number: 6831137Abstract: The invention concerns a transparent polyamide alloy, produced by compounding it from 30-98% by weight of a transparent, amorphous, rigid and brittle polyamide A with at least 35 mole % cyclo-aliphatic diamine and a glass transition point of at least 150° C., and 2-70% by weight of a transparent, impact resistant polyamide B with at least 40-80 mole % of at least one long-chain polyamide-forming monomer, with more than 10 carbon atoms and at least 10 mole % terephthalic acid and a glass transition point of under 70° C.Type: GrantFiled: February 4, 2002Date of Patent: December 14, 2004Assignee: EMS Inventa AGInventors: Hans Dalla Torre, Manfred Hewel
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Patent number: 6515056Abstract: A packaging film is made from a master-batch on a polyamide base. The preferred polyamide base is copolyamide 6/12. The packaging films made from this master-batch exhibit improved slip properties and anti-blocking properties. The packaging films are particularly suitable for use in automatic packaging machines in order to increase the cycle frequencies in the are of foodstuff packaging.Type: GrantFiled: April 19, 2001Date of Patent: February 4, 2003Assignee: EMS-Inventa AGInventor: Roland Treutlein
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Patent number: 6469092Abstract: The invention concerns anti-static, peroxide-stable molding compounds on the basis of polyamides and/or polyesters, whereby the molding compounds are modified with very pure conductive carbon black with a low specific surface area. These anti-static molding compounds can be used for the production of injection-molded or extruded parts and the production of sheets or multi-layer hoses and tubes.Type: GrantFiled: April 29, 1999Date of Patent: October 22, 2002Assignee: ENS-Inventa AGInventors: Georg Stöppelmann, Manfred Hewel
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Patent number: 6313234Abstract: A heat settable, coating system of carboxyl-functional polyester resins, polyfunctional epoxy compounds and/or &bgr;-hydroxy alkyl amides, as well as further customary additives, if required. The coating system contains at least one linear carboxyl-functional polyester resin of up to 10 mol-part of isophthalic acid and at least 90 mol-parts of at least a further dicarboxylic acid from the group of aromatic dicarboxylic acids with 8 to 16 C-atoms, aliphatic dicarboxylic acids with 6 to 22 C-atoms and cycloaliphatic dicarboxylic acids with 8 to 16 C-atoms, and at least 90 mol-parts of at least one branched aliphatic diol with 4 to 12 C-atoms, and up to 50 mol-parts of at least one linear aliphatic diol with 2 to 22 C-atoms and/or at least one cycloaliphatic diol with 6 to 16 C-atoms as the binder resin.Type: GrantFiled: June 6, 1995Date of Patent: November 6, 2001Assignee: EMS Inventa-AGInventors: Andreas Kaplan, Manfred Hoppe, Eberhard Kinkelin
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Patent number: 6284334Abstract: The invention relates to novel thermoplastic multi-layer composites comprising at least a) a layer formed from a molding compound based on a polyamide and b) a second layer formed from a molding compound based on a linear alternating polyketone polymer from carbon monoxide and an ethylenically unsaturated hydrocarbon compound, at least part of which layer b) is adjacent to layer a).Type: GrantFiled: December 22, 1998Date of Patent: September 4, 2001Assignee: EMS-Inventa AGInventors: Georg Stöppelmann, Manfred Hewel
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Patent number: 6277911Abstract: Colorless, amorphous, transparent copolyamides, their blends or alloys, and molded articles with high alternate bending strengths that can be produced from them. The copolyamides are preferably made of cycloaliphatic diamines combined with aliphatic dicarboxylic acids and small amounts of aromatic dicarboxylic acids. The copolyamides exhibit high strength, high rigidity, high heat distortion, and good solvent resistance.Type: GrantFiled: December 20, 1999Date of Patent: August 21, 2001Assignee: EMS Inventa AGInventor: Hans Dalla Torre
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Patent number: 6204355Abstract: The invention relates to the use of polyamide moulding compounds, their alloys or blends, which contain at least one homopolyamide, which has been obtained from long-chained aliphatic monomer blocks with cycloaliphatic monomer blocks, in order to manufacture moulded members for optical or electro-optical applications.Type: GrantFiled: October 22, 1999Date of Patent: March 20, 2001Assignee: EMS-Inventa AGInventors: Hans Dalla Torre, Ralf Hala
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Patent number: 6191195Abstract: The invention relates to a heat-curing coating material consisting of a carboxyl-functional polyester, and an epoxy resin and also at least one additional stabilizer.Type: GrantFiled: February 10, 1999Date of Patent: February 20, 2001Assignee: Ems-Inventa AGInventors: Andreas Kaplan, Manfred Wenzler, Juerg Heinz
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Patent number: 6174474Abstract: A device and a method are disclosed, by means of which microfilament yarns made of synthetic polymers can be produced with increased uniformity of the titer, dye absorption and improved physical yarn properties at increased production speeds by means of a spinning process with spinnerets of high hole density and a central cooling unit.Type: GrantFiled: May 11, 1999Date of Patent: January 16, 2001Assignee: EMS-Inventa AGInventors: Manfred Stein, Christian Baumann, Ulrich Kemp, Gunter Goossens
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Patent number: 6153677Abstract: A polyamide composition which is flame-retardant, includes several polyamides; and at least one flame-retarding additive which is at least one alkyl phosphonic acid compound having general formula (I):Type: GrantFiled: November 9, 1995Date of Patent: November 28, 2000Assignee: EMS-Inventa AGInventors: Hans Dalla Torre, Daniel Capaul, Manfred Hewel
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Patent number: 6150474Abstract: The invention relates to a polymer blend composition containing (A) a linear alternating polyketone polymer on the basis of carbon monoxide and at least one ethylenically unsaturated hydrocarbon compound, (B) at least one polyamide and/or block copolyester amide, (C) optionally customary auxiliaries and additives such as stabilizers, pigments, fillers, plasticizers and impact modifiers, the polyamide and/or the block copolyester amide (B) having a carboxyl/amino end-groups ratio of more than 1.Type: GrantFiled: December 22, 1998Date of Patent: November 21, 2000Assignee: EMS-Inventa AGInventors: Georg Stoppelmann, Manfred Hewel
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Patent number: 6100342Abstract: A powder coating is prepared by (a) solvent polymerizing carboxy-functional acrylate copolymers, (b) separating and reacting the copolymers with a molar excess of at least one epihaloalkane, (c) removing excess epihaloalkane, (d) adding toluene and then reacting the copolymers with a sodium hydroxide solution to produce epoxy groups-containing acrylate copolymers having an epoxide number of from 0.018-0.501 eq/100 g copolymer, a weight average molecular weight of from 1000-30,000 and a Tg of from 20-120.degree. C.; and (e) extruding the epoxy groups-containing acrylate copolymers with a hardener such as aliphatic polybasic acids or anhydrides, or carboxy-functional polyesters or acrylic resins along with additives such as pigments or fillers.Type: GrantFiled: July 3, 1997Date of Patent: August 8, 2000Assignee: EMS-Inventa AGInventors: Albert Reich, Andreas Kaplan, Rene Gisler
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Patent number: 6021816Abstract: The invention relates to a corrugated pipe of thermoplastic polymer material for use as fluid line with at least one polymer layer, comprising closed geometric outer contours which are spaced at an interval from each other in the axial direction of the pipe and which define a corrugation on the pipe jacket in at least one radial angular sector in axial, longitudinal direction one behind the other. The closed geometric outer contours are designed in such a manner that two jacket lines of the pipe jacket surface, which lines are approximately opposite one another, are free of corrugations and that these jacket lines extend in the longitudinal direction of the pipe (FIGS. 1b-1d).Type: GrantFiled: February 25, 1998Date of Patent: February 8, 2000Assignee: Ems-Inventa AGInventors: Thomas Jeltsch, Jurgen Brueggemann
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Patent number: 6015954Abstract: The invention relates to a multi-layer ballistic cable protector in which additional fiber sheathing layers are replaced by hard, impact-resistant or impact-resistance modified plastic sheathing layers and, if desired, by further soft plastic damping layers.Type: GrantFiled: April 22, 1997Date of Patent: January 18, 2000Assignee: Ems-Inventa AGInventors: Martin Hochuli, Robert Dietrich
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Patent number: 6013758Abstract: A method for the production and use of a catalytically-acting liquid system is offered, which has no or only a small proportion of free lactam, and which is of low viscosity and good storage stability and which directly initiates the anionic lactam polymerization.Type: GrantFiled: April 2, 1998Date of Patent: January 11, 2000Assignee: EMS-Inventa AGInventors: Eduard Schmid, Roman Eder, Ivano Laudonia
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Patent number: 6008288Abstract: Colorless, amorphous polyamides, their blends or alloys, and the molded articles with high alternate bending strengths that can be produced from them, are made available; they are preferably made up of cycloaliphatic diamines combined with aliphatic dicarboxylic acids and small amounts of aromatic dicarboxylic acids which show at the same time high strength, high rigidity, high heat distortion, and good solvent resistance.Type: GrantFiled: September 24, 1997Date of Patent: December 28, 1999Assignee: EMS-Inventa AGInventor: Hans Dalla Torre
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Patent number: 5990270Abstract: A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least one polyamide which contains cycloaliphatic monomer units and which is amorphous and transparent; and a flame-retardant additive which is present in an amount effective to reduced flammability of the polyamide composition, which is dissolved in the at least one polyamide, and which is at least one alkyl phosphonic acid compound having a general formula: ##STR1## wherein R and R' each represent, independent of each other, an alkyl group having from 1 to 4 carbon atoms, and x=0 or 1. An article molded from this composition is transparent, has reduced flammability, and has reduced migration of flame-retardant additive so that it is film-free.Type: GrantFiled: October 30, 1998Date of Patent: November 23, 1999Assignee: Ems- Inventa AGInventors: Hans Dalla Torre, Manfred Hewel
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Patent number: 5958283Abstract: The invention relates to a thermoplastically processible molding material with a two-phase matrix of a partially aromatic copolyamide and an aliphatic polyamide or copolyamide containing permanently magnetic or magnetizable fillers, as well as to a method for producing this molding material and using it for producing molded parts.Type: GrantFiled: December 17, 1997Date of Patent: September 28, 1999Assignee: EMS-Inventa AGInventors: Eduard Schmid, Ivano Laudonia, David Jarvis, Etienne Aepli, Gion Antoni Tuor
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Patent number: RE39207Abstract: The invention concerns anti-static, peroxide-stable molding compounds on the basis of polyamides and/or polyesters, whereby the molding compounds are modified with very pure conductive carbon black with a low specific surface area. These anti-static molding compounds can be used for the production of injection-molded or extruded parts and the production of sheets or multi-layer hoses and tubes.Type: GrantFiled: May 6, 2003Date of Patent: July 25, 2006Assignee: EMS-Inventa AGInventors: Georg Stöppelmann, Manfred Hewel