Patents by Inventor Ornulf Rexin
Ornulf Rexin 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: 20170107337Abstract: The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix.Type: ApplicationFiled: December 27, 2016Publication date: April 20, 2017Applicant: EMS-CHEMIE AGInventors: Georg STOPPELMANN, Ornulf REXIN, Volker EICHHORN
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Patent number: 9567462Abstract: The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix, comprising the following components: (A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity, measured in m-cresol (0.5 wt-%), of ?rel less than 1.9, (B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, preferably with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, wherein the components (A) and (B) fulfill the condition: (A)+(B)=20 to 60 wt.-% and that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, and a filler component, comprising: (C) 40 to 80 wt.Type: GrantFiled: February 11, 2011Date of Patent: February 14, 2017Assignee: EMS-CHEMIE AGInventors: Georg Stoeppelmann, Ornulf Rexin, Volker Eichhorn
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Patent number: 9221974Abstract: The present invention relates to reinforced polyamide molding materials which can be prepared from a polyamide blend and, for example, by compounding with cut fibers or continuous filaments on twin-screw extruders and have mechanical properties which are usually not compatible with one another, namely a combination of exceptionally high rigidity and strength and at the same time good toughness. Furthermore, a high heat distortion temperature (HDT) is achieved according to the invention. The thermoplastic polyamide molding materials according to the invention are suitable for the production of moldings or other semifinished products or finished articles, which can be produced, for example, by extrusion, injection molding, direct methods or direct compounding, in which the compounded polyamide molding material is processed directly by injection molding, or other deformation techniques.Type: GrantFiled: November 8, 2006Date of Patent: December 29, 2015Assignee: EMS-CHEMIE AGInventors: Ornulf Rexin, Jean-Jacques Linster, Manfred Hewel
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Patent number: 8846800Abstract: The present invention relates to reinforced polyamide molding materials which can be prepared from a polyamide blend and, for example, by compounding with cut fibers or continuous filaments on twin-screw extruders and have mechanical properties which are usually not compatible with one another, namely a combination of exceptionally high rigidity and strength and at the same time good toughness. Furthermore, a high heat distortion temperature (HDT) is achieved according to the invention. The thermoplastic polyamide molding materials according to the invention are suitable for the production of moldings or other semifinished products or finished articles, which can be produced, for example, by extrusion, injection molding, direct methods or direct compounding, in which the compounded polyamide molding material is processed directly by injection molding, or other deformation techniques.Type: GrantFiled: November 8, 2006Date of Patent: September 30, 2014Assignee: EMS-Chemie AGInventors: Ornulf Rexin, Jean-Jacques Linster, Manfred Hewel
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Patent number: 8552103Abstract: Filled polyamide molding materials, in particular polyamide molding materials with medium filler content, are producible from a polyamide blend and for example by compounding with chopped or endless fibers on two-screw extruders, and have a combination of reduced water absorption and good mechanical properties, which results in very good dimensional stability and reduced variation of the electrical properties of the produced molded part, such as an antenna housings of stationary or mobile communication devices. These thermoplastic polyamide molding materials are suitable for manufacturing molded parts and other semi-finished or finished parts, for example by extrusion, injection molding, pressing, direct process or direct compounding, respectively, wherein the compounded polyamide molding material is directly processed by injection molding or other shaping methods.Type: GrantFiled: October 28, 2010Date of Patent: October 8, 2013Assignee: EMS-Chemie AGInventors: Ornulf Rexin, Etienne Aepli
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Publication number: 20110240930Abstract: The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix, comprising the following components: (A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity, measured in m-cresol (0.5 wt-%), of ?rel less than 1.9, (B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, preferably with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, wherein the components (A) and (B) fulfill the condition: (A)+(B)=20 to 60 wt.-% and that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, and a filler component, comprising: (C) 40 to 80 wt.Type: ApplicationFiled: February 11, 2011Publication date: October 6, 2011Applicant: EMS-CHEMIE AGInventors: Georg STOEPPELMANN, Ornulf Rexin, Volker Eichhorn
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Publication number: 20110039979Abstract: Filled polyamide molding materials, in particular polyamide molding materials with medium filler content, are producible from a polyamide blend and for example by compounding with chopped or endless fibers on two-screw extruders, and have a combination of reduced water absorption and good mechanical properties, which results in very good dimensional stability and reduced variation of the electrical properties of the produced molded part, such as an antenna housings of stationary or mobile communication devices. These thermoplastic polyamide molding materials are suitable for manufacturing molded parts and other semi-finished or finished parts, for example by extrusion, injection molding, pressing, direct process or direct compounding, respectively, wherein the compounded polyamide molding material is directly processed by injection molding or other shaping methods.Type: ApplicationFiled: October 28, 2010Publication date: February 17, 2011Applicant: EMS-CHEMIE AGInventors: Ornulf REXIN, Etienne Aepli
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Publication number: 20080194751Abstract: The present invention relates to filled polyamide molding materials, in particular polyamide molding materials with medium filler content, which are producible from a polyamide blend and for example by compounding with chopped or endless fibers on two-screw extruders, and have a combination of reduced water absorption and good mechanical properties, which results in very good dimensional stability and reduced variation of the electrical properties of the produced molded part, such as an antenna housings of stationary or mobile communication devices. The thermoplastic polyamide molding materials according to the present invention are suitable for manufacturing molded parts and other semi-finished or finished parts, for example by extrusion, injection molding, pressing, direct process or direct compounding, respectively, wherein the compounded polyamide molding material is directly processed by injection molding or other shaping methods.Type: ApplicationFiled: February 7, 2008Publication date: August 14, 2008Applicant: EMS-CHEMIE AGInventors: Ornulf REXIN, Etienne Aepli
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Publication number: 20080167415Abstract: The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix, comprising the following components: (A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity, measured in m-cresol (0.5 wt-%), of ?rel less than 1.9, (B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, preferably with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, wherein the components (A) and (B) fulfill the condition: (A)+(B)=20 to 60 wt.-% and that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, and a filler component, comprising: (C) 40 to 80 wt.Type: ApplicationFiled: December 28, 2007Publication date: July 10, 2008Inventors: Georg STOEPPELMANN, Ornulf REXIN, Volker EICHHORN
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Patent number: 7312263Abstract: The present invention relates to thermoplastic polyamide moulding compositions which contain at least one copolyamide with at least 20% by weight polyamide 12 components and at least one aprotic compound selected from the group of N-alkylated, cyclic carboxylic acid amides with 5 to 7 ring elements and/or of urea derivatives, the alkyl rests of which are linear at the nitrogen or which form a linking of the two N-atoms, and a process for production of the moulding compositions. The thermoplastic polyamide moulding compositions are distinguished by the fact that no solid deposits are formed during thermoplastic conversion.Type: GrantFiled: December 29, 2004Date of Patent: December 25, 2007Assignee: EMS-Chemie AGInventors: Eduard Schmid, Ornulf Rexin
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Publication number: 20070123632Abstract: The present invention relates to reinforced polyamide moulding materials which can be prepared from a polyamide blend and, for example, by compounding with cut fibres or continuous filaments on twin-screw extruders and have mechanical properties which are usually not compatible with one another, namely a combination of exceptionally high rigidity and strength and at the same time good toughness. Furthermore, a high heat distortion temperature (HDT) is achieved according to the invention. The thermoplastic polyamide moulding materials according to the invention are suitable for the production of mouldings or other semifinished products or finished articles, which can be produced, for example, by extrusion, injection moulding, direct methods or direct compounding, in which the compounded polyamide moulding material is processed directly by injection moulding, or other deformation techniques.Type: ApplicationFiled: November 8, 2006Publication date: May 31, 2007Applicant: EMS-CHEMIE AGInventors: Ornulf Rexin, Jean-Jacques Linster, Manfred Hewel
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Publication number: 20070117910Abstract: The present invention relates to reinforced polyamide moulding materials which can be prepared from a polyamide blend and, for example, by compounding with cut fibres or continuous filaments on twin-screw extruders and have mechanical properties which are usually not compatible with one another, namely a combination of exceptionally high rigidity and strength and at the same time good toughness. Furthermore, a high heat distortion temperature (HDT) is achieved according to the invention. The thermoplastic polyamide moulding materials according to the invention are suitable for the production of mouldings or other semifinished products or finished articles, which can be produced, for example, by extrusion, injection moulding, direct methods or direct compounding, in which the compounded polyamide moulding material is processed directly by injection moulding, or other deformation techniques.Type: ApplicationFiled: November 8, 2006Publication date: May 24, 2007Applicant: EMS-Chemie AGInventors: Ornulf Rexin, Jean-Jacques Linster, Manfred Hewel
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Patent number: 7151127Abstract: The present invention relates to the use of thermoplastic polyamide moulding compositions with reduced or strongly reduced formation of solid deposits and/or coverings during a thermoplastic conversion into commodity goods in discontinuous processes in particular injection moulding, and continuous processes such as the extrusion of films, fibers, tubes and jacketings containing at least 20% by weight polyamide and/or at least one copolymer with at least 20% by weight polyamide components.Type: GrantFiled: December 29, 2004Date of Patent: December 19, 2006Assignee: Ems-Chemie AGInventors: Georg Stoeppelmann, Ornulf Rexin, Eduard Schmid, Ralph Kettl, Manfred Hewel
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Patent number: 7135428Abstract: A catalyst solution for the anionic polymerization of lactones and/or lactams comprises a salt of at least one compound of the general formula I In this formula (I), R1 is H or an aliphatic, cycloaliphatic or aromatic radical with 1 to 12 C atoms which can also have heteroatoms or hetero groups, the radical R2, which is the same or different, is H, halogen, C1–C5-alkyl, ethoxy or wherein said solvation agent S comprises N-methylpyrrolidone, N-octylpyrrolidone, N-cyclohexylpyrrolidone, N-octylcaprolactam, tetrabutyl urea or mixtures thereof methoxy, and n=1, 2 or 3, and wherein the salt is dissolved in an aprotic solvation agent S.Type: GrantFiled: September 9, 2004Date of Patent: November 14, 2006Assignee: Ems-Chemie AGInventors: Eduard Schmid, Heinz Hoff, Ornulf Rexin
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Publication number: 20050148728Abstract: The present invention relates to the use of thermoplastic polyamide moulding compositions with reduced or strongly reduced formation of solid deposits and/or coverings during a thermoplastic conversion into commodity goods in discontinuous processes in particular injection moulding, and continuous processes such as the extrusion of films, fibers, tubes and jacketings containing at least 20% by weight polyamide and/or at least one copolymer with at least 20% by weight polyamide components.Type: ApplicationFiled: December 29, 2004Publication date: July 7, 2005Inventors: Georg Stoeppelmann, Ornulf Rexin, Eduard Schmid, Ralph Kettl, Manfred Hewel
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Publication number: 20050148729Abstract: The present invention relates to thermoplastic polyamide moulding compositions which contain at least one copolyamide with at least 20% by weight polyamide 12 components and at least one aprotic compound selected from the group of N-alkylated, cyclic carboxylic acid amides with 5 to 7 ring elements and/or of urea derivatives, the alkyl rests of which are linear at the nitrogen or which form a linking of the two N-atoms, and a process for production of the moulding compositions. The thermoplastic polyamide moulding compositions are distinguished by the fact that no solid deposits are formed during thermoplastic conversion.Type: ApplicationFiled: December 29, 2004Publication date: July 7, 2005Inventors: Eduard Schmid, Ornulf Rexin
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Publication number: 20050090382Abstract: The invention relates to a solution of an alkali salt, which is strongly basic, clear, stable in storage and liquid at room temperature, of aniline, amidated with a monocarboxylic acid, or its derivatives in an aprotic solvation agent, a method for production thereof and the polyamides produced using this solution.Type: ApplicationFiled: September 9, 2004Publication date: April 28, 2005Inventors: Eduard Schmid, Heinz Hoff, Ornulf Rexin
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Publication number: 20020183561Abstract: The invention is directed to a process for preparing a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms under basic catalysis in the presence of phosphonium cations.Type: ApplicationFiled: May 1, 2002Publication date: December 5, 2002Inventors: Ornulf Rexin, Rolf Mulhaupt
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Patent number: 6469218Abstract: The invention is directed to a process for preparing a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms under basic catalysis in the presence of phosphonium cations.Type: GrantFiled: May 1, 2002Date of Patent: October 22, 2002Assignee: Bayer AktiengesellschaftInventors: Ornulf Rexin, Rolf Mülhaupt