Patents by Inventor Ria Kress
Ria Kress 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: 8496725Abstract: The invention relates to a composition for producing magnetic or magnetizable moldings, comprising from 95.5 to 98.95% by weight of a powder made of a magnetic or magnetizable material, from 1.0 to 4% by weight of a mixture made of at least one epoxy-novolak resin, and also of at least one hardener, and comprising from 0.05 to 0.5% by weight of at least one additive, based in each case on the total weight of the composition. The mixture made of the at least one epoxy-novolak resin and of the at least one hardener comprises from 85 to 95% by weight of the epoxy-novolak resin and from 5 to 15% by weight of hardener. The hardener has been selected from (cyclo)aliphatic amines and their adducts, polyamides, Mannich bases, amidoamines, phenolic resins, imidazoles, and imidazole derivatives, dicyandiamide, and BF3-monoethanolamine. The invention further relates to a process for producing the composition, and also to a process for producing a molding made of the composition.Type: GrantFiled: March 23, 2011Date of Patent: July 30, 2013Assignee: BASF SEInventors: Carsten Blettner, Jürgen Kaczun, Ria Kress, Dag Wiebelhaus
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Publication number: 20110233811Abstract: The invention relates to a composition for producing magnetic or magnetizable moldings, comprising from 95.5 to 98.95% by weight of a powder made of a magnetic or magnetizable material, from 1.0 to 4% by weight of a mixture made of at least one epoxy-novolak resin, and also of at least one hardener, and comprising from 0.05 to 0.5% by weight of at least one additive, based in each case on the total weight of the composition. The mixture made of the at least one epoxy-novolak resin and of the at least one hardener comprises from 85 to 95% by weight of the epoxy-novolak resin and from 5 to 15% by weight of hardener. The hardener has been selected from (cyclo)aliphatic amines and their adducts, polyamides, Mannich bases, amidoamines, phenolic resins, imidazoles, and imidazole derivatives, dicyandiamide, and BF3-monoethanolamine. The invention further relates to a process for producing the composition, and also to a process for producing a molding made of the composition.Type: ApplicationFiled: March 23, 2011Publication date: September 29, 2011Applicant: BASF SEInventors: Carsten Blettner, Jürgen Kaczun, Ria Kress, Dag Wiebelhaus
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Publication number: 20100316929Abstract: Process for producing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups and/or salts of acid groups and also aqueous formulations (A) which have been produced according to the process of the invention. Also a process for producing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. In addition a formulation (C) comprising the dried formulation (B) of the invention and also water or an aqueous formulation (A) and a water-comprising formulation (D) comprising the aqueous formulation (A) of the invention or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Additionally dry formulations (E) which are obtained by removing water from the water-comprising formulations (D) of the invention.Type: ApplicationFiled: December 6, 2007Publication date: December 16, 2010Applicant: BASF SEInventors: Guenter Oetter, Ria Kress, Dennis Loesch, Alexander Khvorost, Gerhard Eugen Wahsner
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Publication number: 20100028582Abstract: Powder coating materials which comprise high-functionality, highly branched or hyperbranched polycarbonates based on dialkyl or diaryl carbonates or on phosgene, diphosgene or triphosgene and on aliphatic, aliphatic/aromatic or aromatic diols or polyols.Type: ApplicationFiled: May 11, 2007Publication date: February 4, 2010Applicant: BASF COATINGS AGInventors: Andreas Joch, Werner-Alfons Jung, Werner Blomer, Bernd Bruchmann, Ria Kress, Norbert Wagner, Mirco Bassi
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Patent number: 7579082Abstract: The present invention relates to films which are coated with at least two paint coats (2) (3), whereby the backing film (1) is coated with at least one radiation-hardenable paint coat (2) and at least one second paint coat (3), which can harden at least partially without radiation. The invention also relates to a method for producing said films and to their use for coating steel, aluminium and plastic substrates.Type: GrantFiled: August 14, 2002Date of Patent: August 25, 2009Assignee: BASF AktiengesellschaftInventors: Helmut Steininger, Ria Kress, Erich Beck, Rainer Koeniger
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Patent number: 6936340Abstract: Multilayer magnetic recording medium which is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties and good surface smoothness and can absorb a large amount of lubricant in the lower layer and has at least one upper magnetic recording layer less than 0.5 ?m thick and at least one lower layer which contains a magnetically soft pigment.Type: GrantFiled: April 6, 2001Date of Patent: August 30, 2005Assignee: Imation Corp.Inventors: Helmut Jakusch, Albert Kohl, Peter Heilmann, Ronald John Veitch, Ria Kress, Stefan Müller, Johannes Sandrock, Hartmut Heene
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Patent number: 6914118Abstract: A polyurethane having at least one anionic anchor group L, the anchor group L being covalently bonded to a polyether segment having at least one nitrogen atom in the polyurethane.Type: GrantFiled: October 9, 2001Date of Patent: July 5, 2005Assignee: Imation Corp.Inventors: Ulrike Hees, Hans-Guenter Bohrman, Benedikt Raether, Ria Kress, Albert Kohl
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Patent number: 6835450Abstract: Multilayer magnetic recording medium is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties in the entire recording wavelength range and good mechanical properties and possesses a flat frequency response and which has at least one upper magnetic recording layer less than 0.5 &mgr;m thick and at least one lower layer which contains a magnetically soft pigment.Type: GrantFiled: April 6, 2001Date of Patent: December 28, 2004Assignee: Imation Corp.Inventors: Ronald John Veitch, Albert Kohl, Helmut Jakusch, Andreas Ilmer, Peter Heilmann, Ria Kress, Stefan Müller, Johannes Sandrock
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Publication number: 20040208998Abstract: The present invention relates to films which are coated with at least two paint coats (2) (3), whereby the backing film (1) is coated with at least one radiation-hardenable paint coat (2) and at least one second paint coat (3), which can harden at least partially without radiation. The invention also relates to a method for producing said films and to their use for coating steel, aluminium and plastic substrates.Type: ApplicationFiled: February 11, 2004Publication date: October 21, 2004Inventors: Helmut Steininger, Ria Kress, Erich Beck, Rainer Koniger
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Publication number: 20040127675Abstract: A polyurethane having at least one anionic anchor group L, the anchor group L being covalently bonded to a polyether segment having at least one nitrogen atom in the polyurethane.Type: ApplicationFiled: August 21, 2003Publication date: July 1, 2004Inventors: Ulrike Hees, Hans-Guenter Bohrman, Benedikt Raether, Ria Kress, Albert Kohl
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Publication number: 20040030047Abstract: The invention relates to a polyurethane comprising at least one anionic active group L. The anionic active group L is bound to a segment G in the polyurethane, said segment containing monomers that have been linked by radical polymerisation. The invention also relates to a binding agent composition containing an inventive polyurethane, to a method for the production thereof and to the use of polyurethanes of this type for producing magnetic recording media.Type: ApplicationFiled: June 19, 2003Publication date: February 12, 2004Inventors: Ulrike Hees, Hans-Guenter Bohrmann, Benedikt Raether, Ria Kress, Albert Kohl, Lothar Schulz
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Patent number: 6433070Abstract: A binder composition, at least containing an inorganic filler and a thermoplastic block copolyurethane having in each case at least one soft segment (A) and at least one hard segment (B), at least one hard segment (B) containing a structural element of the formula I is used in particular for the production of magnetic recording media.Type: GrantFiled: September 14, 2000Date of Patent: August 13, 2002Assignee: Emtec Magnetics GmbHInventors: Benedikt Raether, Ulrike Hees, Ria Kress, Albert Kohl, Richard Bradshaw, Gerhard Maier
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Publication number: 20020012815Abstract: Multilayer magnetic recording medium is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties in the entire recording wavelength range and good mechanical properties and possesses a flat frequency response and which has at east one upper magnetic recording layer less than 0.5 &mgr;m thick and at least one lower layer which contains a magnetically soft pigment.Type: ApplicationFiled: April 6, 2001Publication date: January 31, 2002Applicant: EMTEC MAGNETICS GmbHInventors: Ronald John Veitch, Albert Kohl, Helmut Jakusch, Andreas Ilmer, Peter Heilmann, Ria Kress, Stefan Muller, Johannes Sandrock
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Publication number: 20020009617Abstract: Multilayer magnetic recording medium which is suitable for high recording densities and the recording of digital data, has very good electromagnetic recording properties and good surface smoothness and can absorb a large amount of lubricant in the lower layer and has at least one upper magnetic recording layer less than 0.5 &mgr;m thick and at least one lower layer which contains a magnetically soft pigment.Type: ApplicationFiled: April 6, 2001Publication date: January 24, 2002Applicant: EMTEC MAGNETICS GmbHInventors: Helmut Jakusch, Albert Kohl, Peter Heilmann, Ronald John Veitch, Ria Kress, Stefan Muller, Johannes Sandrock, Hartmut Heene
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Publication number: 20010021762Abstract: A binder composition for a magnetic recording medium comprises at least one polyurethane having a structural unit according to the formula I 1Type: ApplicationFiled: February 7, 2001Publication date: September 13, 2001Inventors: Ulrike Hees, Benedikt Raether, Albert Kohl, Ria Kress, Rainer Blum
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Publication number: 20010016641Abstract: A binder composition for a magnetic recording medium comprises at least one polyurethane having a structural unit according to the formula I 1Type: ApplicationFiled: February 7, 2001Publication date: August 23, 2001Inventors: Ulrike Hees, Benedikt Raether, Albert Kohl, Ria Kress, Rainer Blum
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Patent number: 6132880Abstract: The thermoplastic, isocyanate-free polyurethane which contains acidic groups, is soluble in tetrahydrofuran, has a molecular weight of from 15,000 to 70,000 and is composed ofA) 1 mol of a polyol having a molecular weight of from 400 to 4000,B) from 0.3 to 9 mol of a mixture ofB1) if required, a diol of 2 to 18 carbon atoms andB2) from 0.03 to 0.4 mol of a diol having at least one acidic group,C) from 0 to 1 mol of a polyol having 3 to 18 carbon atoms and at least 3 OH groups,D) from 1.25 to 13 mol of a diisocyanate of 6 to 30 carbon atoms andE) from 0 to 1 mol of a primary or secondary amino alcohol of 2 to 16 carbon atoms,the molar ratio of the OH and any NH groups present in the sum of the components A, B, C and E to the NCO groups of component D being from 0.98 to 1.4, is obtainable by reacting the above components in the melt and is suitable in particular as a binder for magnetic recording media.Type: GrantFiled: August 4, 1998Date of Patent: October 17, 2000Assignee: EMTEC Magnetics GmbHInventors: Franz Weingart, Christa Hackl, Rudiger Krech, Stephan Bauer, Albert Kohl, Ria Kress, Josef Schelble, Hans-Ganther Bohrmann
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Patent number: 6025456Abstract: Hydroxyl-containing polyurethanes I are composed essentially ofa) a diisocyanate of 6 to 30 carbon atoms (component II),b) a component III comprising.alpha.) an aliphatic diol of 2 to 20 carbon atoms or.beta.) an aromatic-aliphatic or aromatic-cycloaliphatic diol of 8 to 30 carbon atoms having nonphenolic hydroxyl groups as hydroxyl groups of the diol andc) a polyhydric alcohol having at least 3 hydroxyl groups, 3 to 18 carbon atoms and nonphenolic hydroxyl groups as hydroxyl groups of the alcohol (component IV),the amounts of components II to IV being such that the total number of nonphenolic hydroxyl groups is from 1.1 to 5.0 per isocyanate group of II.The polyurethanes can be used as binders or binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.Type: GrantFiled: March 9, 1998Date of Patent: February 15, 2000Assignee: EMTEC Magnetics GmbHInventors: Thomas Wunsch, Ria Kress, Werner Loch, August Lehner, Albert Kohl, Norbert Schneider, Uwe Burkhardt
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Patent number: 5968658Abstract: Magnetic recording media contain a nonmagnetic substrate and a magnetizable layer, the magnetizable layer containing ferromagnetic pigments and a system of polymeric materials, wherein the system of polymeric materials containsa) from 3 to 35% by weight of a polymer containing ionic or ionogenic groupsb) from 5 to 97% by weight of a polymer XIV which contains basic groups, and has a molecular weight of from 30000 to 2000000.Type: GrantFiled: December 2, 1997Date of Patent: October 19, 1999Assignee: EMTEC Magnetics GmbHInventors: Ria Kress, Albert Kohl, August Lehner, Werner Lenz, Michael Hitzfeld
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Patent number: 5922469Abstract: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting1) a polyurethane (II) comprisinga) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000,b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms,c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms,d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms,e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group andf) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.Type: GrantFiled: April 15, 1997Date of Patent: July 13, 1999Assignee: BASF AktiengesellschaftInventors: Thomas Wunsch, Gregor Brodt, Ria Kress, Norbert Schneider, Albert Kohl, August Lehner, Werner Balz