Patents by Inventor Harald Häger
Harald Häger 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: 6783821Abstract: A good layer adhesion can be achieved in a composite having two or more layers wherein a layer I is obtained from a molding composition which has the following components: a) from 0 to 80 parts by weight of a polyamide selected from the group consisting of PA6, PA66, PA6/66 and a mixture thereof; b) from 0.Type: GrantFiled: December 21, 2001Date of Patent: August 31, 2004Assignee: Degussa AGInventors: Hans Ries, Guido Schmitz, Harald Haeger
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Patent number: 6726999Abstract: A molding composition comprises from 80 to 99.9 parts by weight of thermoplastic polyester and from 0.1 to 20 parts by weight of a polyamide-polyamine graft copolymer, where the sum of the parts by weight of the polyester and of the graft copolymer is 100. The molding composition has improved flowability.Type: GrantFiled: December 21, 2001Date of Patent: April 27, 2004Assignee: Degussa AGInventors: Ralf Schueler, Heinz Peirick, Harald Haeger, Ralf Richter
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Patent number: 6677015Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa•s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.Type: GrantFiled: December 19, 2001Date of Patent: January 13, 2004Assignee: Degussa AGInventors: Martin Himmelmann, Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger, Ralf Richter
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Patent number: 6660796Abstract: The present invention relates to a molding composition containing thermoplastic polyesters, impact-modifying component which contains anhydride groups, a copolymer of &agr;-olefin, acrylic compound, olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline and/or oxazinone, which has improved low-temperature impact strength; methods of making molding with the molding composition and molding containing the composition.Type: GrantFiled: December 20, 2001Date of Patent: December 9, 2003Assignee: Degussa AGInventors: Ralf Schueler, Heinz Peirick, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Patent number: 6579581Abstract: A molding which comprises the following components: (I) from 60 to 96.5 parts by weight of polyamide; (II) from 3 to 39.5 parts by weight of an impact-modifying component which contains anhydride groups, (III) from 0.5 to 20 parts by weight of a copolymer which contains units of the monomers: (a) &agr;-olefin, (b) acrylic compound, and also (c) olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline or oxazinone, where the total of the parts by weight of components I, II, and III is 100, and where moreover the polyamide has an excess of amino end groups, has improved low-temperature impact strength, even if the molding composition also comprises a plasticizer.Type: GrantFiled: June 22, 2001Date of Patent: June 17, 2003Assignee: Degussa AGInventors: Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Publication number: 20030072987Abstract: An element of a conduit system of a fuel cell, wherein the part which is in contact with the conveyed medium is composed of a polyester molding composition, can be manufactured at low cost, has a good barrier action with respect to the conveyed medium and releases very substantially no components which poison or polarize the catalyst.Type: ApplicationFiled: October 11, 2002Publication date: April 17, 2003Applicant: Degussa AGInventors: Hans Ries, Guido Schmitz, Harald Haeger, Olivier Farges
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Patent number: 6538073Abstract: A graft copolymer suitable as a blend component or as a hot-melt adhesive, which contains the following monomer units: a) from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 11 nitrogen atoms and a number-average molar mass Mn of at least 500 g/mol; and b) an equimolar combination of diamine and dicarboxylic acid as polyamide-forming monomers.Type: GrantFiled: June 26, 2000Date of Patent: March 25, 2003Assignee: Degussa AGInventors: Georg Oenbrink, Harald Haeger, Ralf Richter
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Publication number: 20020142118Abstract: The present invention provides a layered composite, which includes the following layers:Type: ApplicationFiled: December 21, 2001Publication date: October 3, 2002Applicant: Degussa AGInventors: Guido Schmitz, Harald Haeger, Hans Ries, Wilfried Bartz
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Publication number: 20020119267Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa•s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.Type: ApplicationFiled: December 19, 2001Publication date: August 29, 2002Applicant: DEGUSSA AGInventors: Martin Himmelmann, Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger, Ralf Richter
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Publication number: 20020119272Abstract: A good layer adhesion can be achieved in a composite having two or more layers whereinType: ApplicationFiled: December 21, 2001Publication date: August 29, 2002Applicant: DEGUSSA AGInventors: Hans Ries, Guido Schmitz, Harald Haeger
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Publication number: 20020120076Abstract: A molding composition comprises from 80 to 99.9 parts by weight of thermoplastic polyester and from 0.1 to 20 parts by weight of a polyamide-polyamine graft copolymer, where the sum of the parts by weight of the polyester and of the graft copolymer is 100. The molding composition has improved flowability.Type: ApplicationFiled: December 21, 2001Publication date: August 29, 2002Applicant: DEGUSSA AGInventors: Ralf Schueler, Heinz Peirick, Harald Haeger, Ralf Richter
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Publication number: 20020115771Abstract: The present invention relates to a molding composition containing thermoplastic polyesters, impact-modifying component which contains anhydride groups, a copolymer of &agr;-olefin, acrylic compound, olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline and/or oxazinone, which has improved low-temperature impact strength; methods of making molding with the molding composition and molding containing the composition.Type: ApplicationFiled: December 20, 2001Publication date: August 22, 2002Applicant: DEGUSSA AGInventors: Ralf Schueler, Heinz Peirick, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Publication number: 20020082352Abstract: Good adhesion between layers is achieved in a multilayer composite having the following layers:Type: ApplicationFiled: December 26, 2001Publication date: June 27, 2002Applicant: Degussa AGInventors: Guido Schmitz, Harald Haeger
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Patent number: 6407182Abstract: Transparent molding compositions are prepared by blending from 50 to 99 parts by weight of a transparent polyamide, and from 1 to 50 parts by weight of a graft copolymer, such that the sum of the parts by weight of the transparent polyamide and the graft copolymer is 100. The graft copolymer is prepared by reacting from 0.5 to 25% by weight, based on the graft copolymer, of a branched polyamine having at least 4 nitrogen atoms and having a number average molecular weight Mn of at least 146 g/mol, with polyamide-forming monomers selected from the group consisting of lactams, &ohgr;-aminocarboxylic acids, equimolar combinations of diamine and dicarboxylic acid, and combinations thereof.Type: GrantFiled: January 25, 2001Date of Patent: June 18, 2002Assignee: Degussa AGInventors: Juergen Maul, Georg Oenbrink, Harald Haeger, Hans-Peter Hauck, Ralf Richter
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Patent number: 6391982Abstract: A graft copolymer is prepared by a process comprising: graft polymerizing a polyamide-forming monomer selected from the group consisting of lactams and &ohgr;-aminocarboxylic acids and an oligocarboxylic acid selected from the group consisting of from 0.015 to about 3 mol. % of dicarboxylic acid and from 0.01 to about 1.2 mol. % of tricarboxylic acid, in each case the stated amounts of oligocarboxylic acid based on a molar amount of lactam, &ohgr;-aminocarboxylic acid or combination thereof, onto from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 11 nitrogen atoms and a number-average molecular weight Mn of at least 500 g/mol., wherein the amino group concentration in the graft copolymer ranges from 100 to 2500 mmol./kg.Type: GrantFiled: June 29, 2000Date of Patent: May 21, 2002Assignee: Degussa AGInventors: Harald Haeger, Ralf Richter, Georg Oenbrink
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Publication number: 20020037972Abstract: Transparent molding compositions are prepared by blending from 50 to 99 parts by weight of a transparent polyamide, and from 1 to 50 parts by weight of a graft copolymer, such that the sum of the parts by weight of the transparent polyamide and the graft copolymer is 100. The graft copolymer is prepared by reacting from 0.5 to 25% by weight, based on the graft copolymer, of a branched polyamine having at least 4 nitrogen atoms and having a number average molecular weight Mn of at least 146 g/mol, with polyamide-forming monomers selected from the group consisting of lactams, w-aminocarboxylic acids, equimolar combinations of diamine and dicarboxylic acid, and combinations thereof.Type: ApplicationFiled: January 25, 2001Publication date: March 28, 2002Applicant: Degussa-Huels AktiengesellschaftInventors: Juergen Maul, Georg Oenbrink, Harald Haeger, Hans-Peter Hauck, Ralf Richter
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Patent number: 6355358Abstract: A thermoplastic multilayer composite, and articles made therefrom, which has at least one layer I of a thermoplastic molding composition, at least one layer II of a further thermoplastic molding composition, bonded together with at least one layer of an adhesion promoter disposed between at least one layer I and at least one layer II. The adhesion promoter is at least 5% by weight of a graft copolymer prepared from 0.5 to 25% by weight, based on the total amount of graft copolymer, of a polyamine having at least 4 nitrogen atoms and having a number average molecular weight Mn of at least 146 g/mol, and polyamide-forming monomers selected from lactams, &ohgr;-aminocarboxylic acids, equimolar mixtures of diamines and dicarboxylic acids, and their mixtures.Type: GrantFiled: June 29, 2000Date of Patent: March 12, 2002Assignee: Degussa AGInventors: Michael Böer, Guido Schmitz, Georg Oenbrink, Harald Häger, Ralf Richter
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Publication number: 20020019477Abstract: A molding which comprises the following components:Type: ApplicationFiled: June 22, 2001Publication date: February 14, 2002Applicant: Degussa-Huels AktiengesellschaftInventors: Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Patent number: 6335101Abstract: A thermoplastic composite having a multiplicity of layers and comprising: I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II comprising at least 50% by weight of a blend of: a) from 20 to 80% by weight of a polyamide, prepared from &agr;) at least one diamine having from 6 to 12 carbon atoms, and &bgr;) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms, and b) from 80 to 20% by weight of a polyester, prepared from &agr;) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, and &bgr;) at least one diol having from 2 to 12 carbon atoms.Type: GrantFiled: February 22, 2000Date of Patent: January 1, 2002Assignee: Degussa-Hüls AktiengesellschaftInventors: Harald Haeger, Guido Schmitz, Franz-Erich Baumann, Giselher Franzmann, Georg Oenbrink
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Publication number: 20010018105Abstract: A multilayer plastic pipe having strong bonding between the layers has at least one layer I of a polyolefin molding composition comprising a polyolefin, at least one layer II of a polyester molding composition, and at least one layer III of an adhesion promoter containing reactive groups and located between layers I and II. The polyester molding composition of layer II comprises a polyester and one or more compounds selected from a compound having two or more carbodiimide groups, carboxylic anhydride groups, maleimide groups or oxazine groups.Type: ApplicationFiled: January 4, 2001Publication date: August 30, 2001Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFTInventors: Guido Schmitz, Georg Oenbrink, Walter Hellermann, Thomas Grosse-Puppendahl, Harald Haeger