Patents by Inventor Klaus Gahlmann
Klaus Gahlmann 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: 20210355321Abstract: The present invention relates to a moulding compound which contains at least 50 wt. % of a semicrystalline poly amide component and the moulding compound contains a filler which imparts conductivity to the moulding compound, wherein the moulding compound does not have a crystallite melting point (Tm) below 50° C. and the polyamide component contains components A and B, A) PA homopolymer of the type PA X.Y or PAZ, where X is a diamine radical (DA), Y is a dicarboxyl radical (DC), and Z is an alpha-omega amino acid radical; B) PA copolymer of the type PA X?.Y?, where X is a diamine radical (DA?) and Y? is a dicarboxyl radical (DC?); wherein a portion of the diamine radical (DA?) is replaced by a polyether having at least two amino termini or at least two hydroxy termini; wherein the proportion of polyether in the sum of components A and Bis between 0.5 and 15 wt. % and wherein the proportion of filler is 2.5 to 6 wt. % based on the total mass of the poly amide component and the filler.Type: ApplicationFiled: October 17, 2019Publication date: November 18, 2021Applicant: Evonik Operations GmbHInventors: Christine Weiß, Olivier Farges, Franz-Erich Baumann, Klaus Gahlmann, Michael Böer, Andreas Szentivanyi, Mario Resing, Rainer Göring, Reinhard Linemann
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Patent number: 11135821Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of fluoropolymer, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: GrantFiled: March 17, 2016Date of Patent: October 5, 2021Assignee: Evonik Operations GmbHInventors: Jasmin Berger, Rainer Goering, Klaus Gahlmann, Michael Boeer, Mario Resing
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Patent number: 10427390Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a molding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a molding compound containing at least 60 wt. % of thermoplastic polyester, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: GrantFiled: March 17, 2016Date of Patent: October 1, 2019Assignee: Evonik Degussa GmbHInventors: Jasmin Berger, Rainer Goering, Klaus Gahlmann, Michael Boeer, Mario Resing
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Patent number: 10252498Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a molding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; II. a second layer (layer II) of a molding compound containing at least 60 wt. % of EVOH; III. a third layer of a polyamide molding compound, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: GrantFiled: March 17, 2016Date of Patent: April 9, 2019Assignee: Evonik Degussa GmbHInventors: Jasmin Berger, Rainer Goering, Klaus Gahlmann, Michael Boeer, Mario Resing
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Patent number: 9574700Abstract: A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide molding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.Type: GrantFiled: August 27, 2008Date of Patent: February 21, 2017Assignees: Evonik Degussa GmbH, Salzgitter Mannesmann Line Pipe GmbHInventors: Andreas Dowe, Rainer Goering, Martin Risthaus, Klaus Gahlmann, Reinhard Buessing, Hans-Juergen Kocks, Joern Winkels
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Patent number: 9556358Abstract: A method for coating of a metallic article is provided. According to the method, the metal surface is coated with a composition which comprises a polymer or comprises a two-component system that reacts to form a polymer following application to the metal surface. The composition comprises 70-2700 meq/kg olefinic double bonds which leads to stronger adhesion and to increased corrosion resistance.Type: GrantFiled: April 29, 2013Date of Patent: January 31, 2017Assignee: Evonik Degussa GmbHInventors: Jan Berger, Klaus Gahlmann, Harald Haeger, Markus Hartmann, Jasmin Nitsche
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Publication number: 20160271913Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of EVOH; III. a third layer of a polyamide moulding compound, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Applicant: Evonik Degussa GmbHInventors: Jasmin BERGER, Rainer GOERING, Klaus GAHLMANN, Michael BOEER, Mario RESING
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Publication number: 20160271921Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of thermoplastic polyester, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Applicant: Evonik Degussa GmbHInventors: Jasmin BERGER, Rainer GOERING, Klaus GAHLMANN, Michael BOEER, Mario RESING
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Publication number: 20160271918Abstract: A multilayer composite containing the following layers: I. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of fluoropolymer, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.Type: ApplicationFiled: March 17, 2016Publication date: September 22, 2016Applicant: Evonik Degussa GmbHInventors: Jasmin BERGER, Rainer GOERING, Klaus GAHLMANN, Michael BOEER, Mario RESING
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Publication number: 20140338780Abstract: A compressed-air brake line which comprises: I) an external layer made of a moulding composition which comprises at least 50% by weight of PA11 and/or PA12, and II) an internal layer made of a moulding composition which comprises at least 50% by weight of polyamide whose monomer units comprise on average at least 8 C atoms is provided. Layer II) does not contain PA11 and/or PA12. The compressed-air brake line has high bursting strength even at elevated temperature, good low-temperature impact resistance, good ageing resistance, and can be produced at low cost.Type: ApplicationFiled: May 13, 2014Publication date: November 20, 2014Applicant: Evonik Industries AGInventors: Michael Beyer, Klaus Gahlmann, Michael Boeer, Karl Kuhmann
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Publication number: 20130287981Abstract: A method for coating of a metallic article is provided. According to the method, the metal surface is coated with a composition which comprises a polymer or comprises a two-component system that reacts to form a polymer following application to the metal surface. The composition comprises 70-2700 meq/kg olefinic double bonds which leads to stronger adhesion and to increased corrosion resistance.Type: ApplicationFiled: April 29, 2013Publication date: October 31, 2013Applicants: Evonik Industries AG, Evonik Degussa GmbHInventors: Jan BERGER, Klaus GAHLMANN, Harald HAEGER, Markus HARTMANN, Jasmin NITSCHE
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Publication number: 20100300572Abstract: A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide moulding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.Type: ApplicationFiled: August 27, 2008Publication date: December 2, 2010Applicants: Evonik Degussa GMBH, Salzgitter Mannesmann Line Pipe GMBHInventors: Andreas Dowe, Rainer Goering, Martin Risthaus, Klaus Gahlmann, Reinhard Buessing, Hans-Juergen Kocks, Joern Winkels
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Patent number: 6500554Abstract: An extrusion-coated metal article is prepared by applying a mixture which comprises an organosilane composition to a metal surface, and then extruding a melt of a polyamide molding composition onto the coated surface thus treated and dried.Type: GrantFiled: March 5, 2001Date of Patent: December 31, 2002Assignee: Degussa AGInventors: Klaus Gahlmann, Walter Hellermann
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Publication number: 20010023537Abstract: An extrusion-coated metal article is prepared by applying a mixture which comprises an organosilane composition to a metal surface, and then extruding a melt of a polyamide molding composition onto the coated surface thus treated and dried.Type: ApplicationFiled: March 5, 2001Publication date: September 27, 2001Applicant: Degussa-HuelsInventors: Klaus Gahlmann, Walter Hellermann