Patents by Inventor Karl Ruppmich
Karl Ruppmich 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: 5475053Abstract: A molding composition based on an impact-modified thermoplastic A selected from ABS, ASA, impact-resistant polystyrene (HIPS) impact resistant polymethyl methacrylate, impact resistant PVC, polycarbonate, polyester carbonate, polyester, polyamide, polyphenylene ether, polyether ketone, polyether sulfone, polysulfone, polyoxyalkylene, polyarylene sulfide and also mixtures thereof containing a matting agent B composed of 30 to 80% by weight of an elastomeric grafting base B1 of 75 to 99.8% by weight of an alkyl acrylate having 1 to 8 carbon atoms in the alkyl radical (B11), 0.1 to 5% by weight of a polyfunctional, crosslinking monomer (B12) and 0.1 to 20% by weight of a monomer containing one or more acidic groups, or 49.9 to 99.9% by weight of one or more dienes (B111), up to 50% by weight of a further ethylenically unsaturated monomer (B112) and 0.1 to 20% by weight of a monomer containing one or more acidic groups (B113), and 20 to 70% by weight of a graft sheath B2 composed of 40 to 99.Type: GrantFiled: June 13, 1994Date of Patent: December 12, 1995Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Friedrich Seitz, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich, Rainer Moors, Robert Weiss
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Patent number: 5344877Abstract: A molding material from a particulate graft polymer which consists ofA: a grafting base A based on an acrylate rubber andB: a graft B ofB1: from 40 to 89.9% by weight of at least one vinylaromatic monomer B1B2: from 10 to 49.9% by weight of at least one polar, coplymerizable, ethylenically unsaturated monomer B2B3: from 0.1 to 20% by weight of at least one monomer B3 containing one or more acidic groups.Type: GrantFiled: May 14, 1993Date of Patent: September 6, 1994Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Norbert Guentherberg, Norbert Niessner, Karl Ruppmich, Friedrich Seitz
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Patent number: 5342898Abstract: A particulate graft polymer comprisingA: from 30 to 80% by weight of one or more elastomeric polymers A having a mean particle size of from 30 to 1000 run, comprising, based on A,A1: from 85 to 99.8% by weight of one or more alkyl acrylates A1 having from 1 to 8 carbon atoms in the alkyl radical,A2: from 0.1 to 5% by weight of one or more polyfunctional, crosslinking monomers A2, andA3: from 0.1 to 10% by weight of one or more monomers A3 containing one or more acid groups, orA11: up to 100% by weight of a diene A11,A12: up to 50% by weight of one or more vinyl-aromatic monomers A12,A13: up to 10% by weight of one or more monomers A13 containing one or more acid groups, as the graft base, andB: from 20 to 70% by weight of a shell B grafted onto the elastomeric polymer A and comprising, based on B,B1: from 50 to 89.9% by weight of one or more vinylaromatic monomers B1,B2: from 10 to 49.9% by weight of one or more polar, copolymerizable, ethylenically unsaturated monomers B2, andB3: from 0.Type: GrantFiled: June 28, 1993Date of Patent: August 30, 1994Assignee: BASF AktiengesellschaftInventors: Friedrich Seitz, Karl Ruppmich, Norbert Guentherberg, Norbert Niessner
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Patent number: 5336718Abstract: A graft consisting of from 5 to 90% of a core A1 having a glass transition temperature above 25.degree. C. made up of, from 50 to 99.9% of a vinylaromatic monomer and from 0.1 to 10% of a polyfunctional crosslinking and/or graft-linking monomer optionally up to 49.9% of one or more copolymerizable monomers; from 5 to 90% of a first shell A2 of elastomeric material made up of from 50 to 99.8% of an alkyl acrylate and/or of a diene, from 0.1 to 10% of a polyfunctional graft-linking monomer, up to 49.8% of one or more copolymerizable unsaturated monomers and from 0.1 to 10% of one or more monomers containing acidic groups; from 5 to 90% of a second shell A3 of rigid material made up of from 50 to 99.9% of a vinylaromatic monomer, up to 10% of a polyfunctional cross-linking and/or graft-linking monomer, up to 49.9% of one or more copolymerizable monomers and from 0.Type: GrantFiled: December 23, 1992Date of Patent: August 9, 1994Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich, Friedrich Seitz
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Patent number: 5276256Abstract: A molding composition containing, based on the total weight of the composition:A) at least 40% by weight of at least one halogen-free polycarbonate;B) 5-40% by weight of at least one halogen-free graft copolymer composed of;1) 40-80% by weight of an elastomer with a glass transition temperature below 0.degree. C., which elastomer is composed of, at least 50% by weight of a diene or of an at least C.sub.4 -alkyl acrylate, 1-40% by weight of a halogen-free phosphorus compound of the formula ##STR1## 2) 20-60% by weight of a shell composed of, 40-98% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and 2-60% by weight of (meth)acrylonitrile and/or maleic anhydride;C) 5-40% by weight of a halogen-free thermoplastic copolymer composed of, 50-95% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.Type: GrantFiled: September 25, 1992Date of Patent: January 4, 1994Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Rainer Neumann, Karl Ruppmich, Friedrich Seitz, Doris Zeltner
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Patent number: 5252666Abstract: A particulate graft polymer comprises from 30 to 90% by weight, of at least one elastomeric polymer A having a median particle size of from 30 to 1000 nm comprising--based on A--from 85 to 99.8% by weight of at least one alkyl acrylate A1 having from 1 to 8 carbon atoms in the alkyl moiety, from 0.1 to 5% by weight of at least one polyfunctional, crosslinking monomer A2 and from 0.1 to 10% by weight of at least one further monoethylenically unsaturated monomer as grafting base, and from 10 to 70% by weight, grafted onto the elastomeric polymer A, of a sheath B comprising--based on B--from 50 to 90% by weight of at least one aromatic vinyl monomer B1 and from 10 to 50% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer B2, wherein monomer A3 is a hydroxyalkyl acrylate or methacrylate.Type: GrantFiled: March 1, 1991Date of Patent: October 12, 1993Assignee: BASF AktiengesellschaftInventors: Friedrich Seitz, Karl Ruppmich, Josef Schwaab
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Patent number: 5219907Abstract: A flame retardant molding composition contains a halogen-free polycarbonate at least one halogen-free graft copolymer assembled from copolymerized units of an elastomer and certain ethylenically unsaturated monomers which include 1-50% by weight of an organic phosphorus compound of the formula (I) ##STR1## a halogen-free thermoplastic copolymer comprising styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and (meth)acrylonitrile and/or maleic anhydride, as well as 1-46% by weight of a halogen-free phosphorus compound of the formula (I): Optionally a monophosphate additive and up to 5% by weight of a polytetrafluoroethylene with a median particle size of from 0.05 to 20 .mu.m may be added.Type: GrantFiled: September 25, 1992Date of Patent: June 15, 1993Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Rainer Neumann, Karl Ruppmich, Friedrich Seitz, Doris Zeltner
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Patent number: 5196480Abstract: Thermoplastic molding materials which have high gloss and are readily colored and comprise a first graft copolymer A of an elastomeric, crosslinked acrylate polymer as the graft base and a graft shell made from a vinyl-aromatic monomer and a polar, copolymerizable, ethylenically unsaturated monomer, and a second separately prepared graft copolymer B of an elastomeric crosslinked acrylate polymer as the graft base, which is different from that in A and has a larger mean particle diameter than the graft base of copolymer A, having a first graft shell of a vinyl-aromatic monomer and a second graft shell of a mixture of a vinyl aromatic monomer and a polar-copolymerizable, ethylenically unsaturated monomer, and a hard matrix C.Type: GrantFiled: April 5, 1991Date of Patent: March 23, 1993Assignee: BASF AktiengesellschaftInventors: Friedrich Seitz, Karl Ruppmich, Juergen Vietmeier, deceased
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Patent number: 5162423Abstract: Thermoplastic material comprising:A) 20-80% polycarbonateB) 10-60% styrenic/nitrile copolymerC) 5-30% ABS or MBS with a median particle size of 0.2-0.5 micronsD) 20-60% ASA with a median particle size of 0.4-0.7 microns.Type: GrantFiled: November 15, 1990Date of Patent: November 10, 1992Assignee: BASF AktiengesellschaftInventors: Rainer Neumann, Ehrenfried Baumgartner, Klaus Benker, Karl Ruppmich
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Patent number: 5120788Abstract: A thermoplastic molding material containing (based on the sum of A+B+C)A: from 1 to 30% by weight of one or more elastomeric polymers A having a mean particles size of from 30 to 1000 nm and comprising, based on A,A1: from 50 to 99.9% by weight of one or more alkyl acrylates A1 having from 1 to 8 carbon atoms in the alkyl radical,A2: from 0.Type: GrantFiled: February 20, 1991Date of Patent: June 9, 1992Assignee: BASF AktiengesellschaftInventors: Friedrich Seitz, Karl Ruppmich
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Patent number: 4939201Abstract: Thermoplastic molding compositions based on thermoplastic polyesters (a.sub.1), graft polymers incorporating acrylate rubbers as grafting bases (a.sub.2), copolymers of aromatic vinyl monomers and acrylonitrile or methacrylonitrile (a.sub.3) which contain a polymeric component (B) having carboxyl, carboxyl derivative, hydroxyl or epoxy groups or, alternatively, where graft polymers (a.sub.2) or copolymers (a.sub.3) carry such groups have a balanced range of properties.Type: GrantFiled: October 7, 1988Date of Patent: July 3, 1990Assignee: BASF AktiengesellschaftInventors: Erhard Seiler, Karl Ruppmich, Manfred Knoll, Walter Heckmann, Dietrich Lausberg, Rainer Bueschl
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Patent number: 4880875Abstract: A thermoplastic molding material containing, based on components A, B and C,A from 10 to 90% by weight of one or more polycarbonates,B from 10 to 50% by weight of one or more graft copolymers,C from 10 to 50% by weight of one or more thermoplastic copolymers containing a vinylaromatic monomer of 8 to 12 carbon atoms and acrylonitrile,wherein component B is composed ofB.sub.1 a first, coarsely divided graft copolymer which has an average particle size of from 200 to 700 nm (d.sub.50 value of cumulative molecular weight distribution) in a proportion of from 30 to 70% by weight, based on B, andB.sub.2 a second, finely divided graft copolymer which has an average particle size of from 50 to 180 nm (d.sub.50 value of cumulative molecular weight distribution) in a proportion of from 70 to 30% by weight, based on B,is used for producing moldings.Type: GrantFiled: April 28, 1987Date of Patent: November 14, 1989Assignee: BASF AktiengesellschaftInventors: Georg Wassmuth, Karl Ruppmich, Erhard Seiler, Hermann Gausepohl, Klaus Benker
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Patent number: 4868235Abstract: A thermoplastic material containing, based in each case on the molding material comprising A and B,A from 30 to 80% be weight of one or more polycarbonates andB from 70 to 20% by weight of a blend of two different components B.sub.1 and B.sub.2, each of which consists of one or more graft copolymers b.sub.11 and b.sub.21 and each of which consists of one or more copolymers (hard matrix) b.sub.12 and b.sub.22, respectively, the graft copolymer b.sub.11 being prepared in emulsion and the graft copolymer b.sub.21 being prepared by another method.Type: GrantFiled: October 21, 1988Date of Patent: September 19, 1989Assignee: BASF AktiengesellschaftInventors: Klaus Muehlbach, Michael Portugall, Karl Ruppmich, Erhard Seiler, Hermann Brandt