Patents by Inventor Dietrich Lausberg
Dietrich Lausberg 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: 6545062Abstract: The invention relates to a process for the production of styrene polymers containing water as expanding agent by suspension polymerization of styrene in the presence of an emulsifying auxiliary, the suspending agent being a mixture of water and an organic liquid which is water-miscible and which is virtually a non-solvent for polystyrene and has a boiling point below 100° C.Type: GrantFiled: January 11, 2002Date of Patent: April 8, 2003Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Klaus Hahn
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Publication number: 20020111451Abstract: The invention relates to a process for the production of styrene polymers containing water as expanding agent by suspension polymerization of styrene in the presence of an emulsifying auxiliary, the suspending agent being a mixture of water and an organic liquid which is water-miscible and which is virtually a non-solvent for polystyrene and has a boiling point below 100° C.Type: ApplicationFiled: January 11, 2002Publication date: August 15, 2002Applicant: BASF AktiengesellschaftInventors: Dietrich Lausberg, Klaus Hahn
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Patent number: 5260375Abstract: Thermoplastic molding materials of improved green strength and impact toughness at low temperatures which are useful for producing injection moldings and are based on a TPU copolymer mixture, contain, based on 100 parts by weight,A) from 20 to 90 parts by weight of at least one thermoplastic polyurethane,B) from 1 to 40 parts by weight of at least one elastomeric graft copolymer formed fromB1) a grafting base comprising an elastomeric polymer having a glass transition temperature of below -20.degree. C. based on butadiene or an acrylate of from 1 to 10 carbon atoms in the alcohol moiety with or without a crosslinker andB2) a graft superstratum prepared by single- or multi-stage copolymerization of styrene, .alpha.-methylstyrene, acrylonitrile,methacrylonitrile and methyl methacrylate or of a mixture of at least two of said monomers,C) from 5 to 75 parts by weight of at least one copolymer prepared by copolymerization of, based on the total weight of (C),C1) from 55 to 90% by weight of .alpha.Type: GrantFiled: February 25, 1991Date of Patent: November 9, 1993Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Klaus Muehlbach, Uwe Blumenstein, Knud Faehndrich
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Patent number: 5237000Abstract: Impact modified thermoplastic polyurethane-polyester molding materials containing, based on 100 parts by weight of (A) to (C),A) from 30 to 90 parts by weight of at least one thermoplastic polyurethane elastomer,B) from 5 to 65 parts by weight of at least one thermoplastic polyester, preferably a polyalkylene terephthalate, andC) from 5 to 30 parts by weight of at least one graft rubber based on a polybutadiene (C1) or polyacrylate (C2) or a mixture of these graft rubbers andD) from 0 to 60% by weight of at least one fibrous or particulate filler andE) from 0 to 10% by weight of at least one assistant,the weight percentages being based on the weight of (A) to (C), are prepared by homogenizing the formative components at 190.degree.-250.degree. C.Type: GrantFiled: September 7, 1990Date of Patent: August 17, 1993Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Rolf Steinberger, Knud Faehndrich, Harald Schulz
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Patent number: 5219915Abstract: Thermoplastic molding materials based on a mixture of polybutylene terephthalate and polyethylene terephthalate (a.sub.1), graft polymers having acrylate rubbers as the grafting base (a.sub.2), copolymers of vinylaromatic monomers and acrylonitrile or methacrylonitrile (a.sub.3) and glass fibers (B) have a balanced property spectrum.Type: GrantFiled: September 20, 1991Date of Patent: June 15, 1993Assignee: BASF AktiengesellschaftInventors: Graham E. McKee, Manfred Knoll, Peter Kolm, Dietrich Lausberg
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Patent number: 5216062Abstract: A thermoplastic molding composition was composed ofA: 20-90% by weight of a thermoplastic polyurethane,B: 1-40% by weight of an elastomeric graft copolymer formed fromb.sub.1 : 50-90% by weight of a grafting base comprising an elastomeric polymer which has a glass transition temperature of below -20.degree. C. and is based on butadiene or a C.sub.2 -C.sub.10 -acrylate and, if desired, a crosslinking agent andb.sub.2 : 10-50% by weight of a graft superstratum formed from styrene and acrylonitrile in the ratio of from 85:15 to 60:40 or styrene or methyl methacrylate, andC: 5-75% by weight of a copolymer formed fromc.sub.1 : 55-90% by weight of .alpha.-methylstyrene andc.sub.2 : 10-45% by weight of acrylonitrile or methacrylonitrile or a mixture thereof, andD: up to 50% by weight of a reinforcing filler.Type: GrantFiled: July 30, 1992Date of Patent: June 1, 1993Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Rolf Steinberger, Gerhard Bittner, Bernd Lukassen
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Patent number: 5180778Abstract: Thermoplastic molding materials containA) not less than 5% by weight of a polymer component consisting of from 50 to 100% by weight of polyphenylene ethers and from 0 to 50% by weight of a styrene polymer differing from component C),B) not less than 5% by weight of a polyester,C) not less than 0.1% by weight of a copolymer consisting ofC.sub.1) not less than 20% by weight of .alpha.-olefins of 2 to 8 carbon atoms, styrene or substituted styrenes of the general formula I ##STR1## where R and R.sup.1 is alkyl of 1 to 8 carbon atoms, hydrogen and/or halogen and n is 0, 1 or 2, or a mixture of these monomers,C.sub.2) not less than 0.5% by weight of a polymerizable monomer containing epoxide groups, and/orC.sub.3) not less than 0.05% by weight of a halobenzyl-containing polymerizable monomer having the structural unit (II) ##STR2## where X is halogen and R.sup.2 and R.sup.3 are each alkyl of 1 to 8 carbon atoms or hydrogen and n is 1, 2 or 3, and/orC.sub.4) not less than 0.Type: GrantFiled: August 29, 1990Date of Patent: January 19, 1993Assignee: BASF AktiengesellschaftInventors: Christof Taubitz, Erhard Seiler, Klaus Boehlke, Dietrich Lausberg
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Patent number: 5179164Abstract: Polypropylene/polyamide molding compositions, suitable in particular for producing moldings, advantageously consist of, in each case based on 100 parts by weight of the molding composition,A) from 10 to 89.5 parts by weight of one or more polypropylene homopolymers and/or copolymers,B) from 10 to 89.5 parts by weight of one or more polyamides,C) from 0.Type: GrantFiled: March 8, 1991Date of Patent: January 12, 1993Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Erhard Seiler, Christoph Plachetta, Hans-Georg Braun, Gerd Blinne
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Patent number: 5162422Abstract: Novel polypropylene-polyamide molding compositions which comprise, based on 100 parts by weight of the molding compositions,A) 10 to 89.9 parts by weight of one or more polypropylene homopolymer and/or copolymer,B) 10 to 89.9 parts by weight of one or more polyamide,C) 0.1 to 5.0 parts by weight of one or more olefinically unsaturated carboxylic acid and/or one or more olefinically unsaturated carboxylic acid derivate,D) 0 to 3.0 parts by weight of an impact modifier, andE) 0 to 60.0 parts by weight of a reinforcing agent and/or additive,are prepared by melting together components (A), (C) and, if desired (D) at from 200.degree. to 300.degree. C. in a first reaction step and then, in a second reaction step, introducing component (B) and, if appropriate, components (D) and/or (E) into the modified melt obtained, and melting together the components.The molding compositions obtained are used for the production of moldings.Type: GrantFiled: June 8, 1990Date of Patent: November 10, 1992Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Wolfgang F. Mueller, Erhard Seiler
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Patent number: 5011884Abstract: A polymeric molding composition contains(a) 20-70% by weight of a thermotropic, liquid-crystalline polymer(b) 10-50% by weight of a polycarbonate(c) 10-50% by weight of a polyester, the weight percentages (a), (b) and (c) adding up to 100, and(d) up to 60% by weight, based on the total amount of proportions (a), (b) and (c), of further polymers, fillers, reinforcing agents, processing aids or other additives, and is used for producing moldings, fibers, films or coatings.Type: GrantFiled: August 31, 1989Date of Patent: April 30, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Rosenau, Bernd Hisgen, Gerhard Heinz, Hans-Georg Braun, Dietrich Lausberg, Hartmut Zeiner
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Patent number: 4968731Abstract: Thermoplastic molding compositions based on thermoplastic polyesters (a.sub.1), graft polymers incorporating acrylate rubbers as grafting base (a.sub.2) and a two-shell graft sheath, copolymers of aromatic vinyl monomers and acrylonitrile or methacrylonitrile (a.sub.3) and glass fibers (B) have a balanced range of properties.Type: GrantFiled: October 7, 1988Date of Patent: November 6, 1990Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Erhard Seiler, Walter Heckmann, Manfred Knoll
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Patent number: 4962157Abstract: Thermoplastic molding materials contain(A) not less than 5% by weight of a polymer component consisting of from 50 to 10 % by weight by polyphenylene ethers and from 0 to 50% by weight of a styrene polymer differing from component (C),(B) not less than 5% by weight of a polyester,(C) not less than 0.1% by weight of a copolymer consisting of(C.sub.1) not less than 20% by weight of .alpha.-olefins of 2 to 8 carbon atoms, styrene or substituted styrenes of the general formula I ##STR1## where R and R.sup.1 is alkyl of 1 to 8 carbon atoms, hydrogen and/or halogen and n is 0, 1 or 2, or a mixture of these monomers,(C.sub.2) not less than 0.5% by weight of a polymerizable monomer containing epoxide groups,and/or(C.sub.3) not less than 0.05% by weight of a halobenzyl-containing polymerizable monomer having the structural unit (II) ##STR2## where X is halogen and R.sup.2 and R.sup.3 are each alkyl of 1 to 8 carbon atoms or hydrogen and n is 1, 2 or 3,and/or(C.sub.4) not less than 0.Type: GrantFiled: June 20, 1988Date of Patent: October 9, 1990Assignee: BASF AktiengesellschaftInventors: Christof Taubitz, Erhard Seiler, Klaus Boehlke, Dietrich Lausberg
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Patent number: 4940745Abstract: The flameproofing agent content of molding compositions containing polyesters (a.sub.1), acrylate graft polymers (a.sub.2), styrene/acrylonitrile copolymers (a.sub.3) and glass fibers can be reduced without affecting the flame resistance by adding finely divided PTFE.Type: GrantFiled: October 7, 1988Date of Patent: July 10, 1990Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Peter Ittemann, Graham E. McKee, Karl Schlichting, Manfred Knoll, Erhard Seiler
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Patent number: 4940746Abstract: Thermoplastic molding composition based on thermoplastic polyesters (a.sub.1), graft polymers incorporating acrylate rubbers as grafting base (a.sub.2), copolymers of aromatic vinyl monomers and acrylonitrile or methacrylonitrile (a.sub.3) and glass fibers (B) have particularly good mechanical properties if the (meth)acrylonitrile content in component (a.sub.3), based on the total weight of (a.sub.3), is less than the (meth)acrylonitrile content of component (a.sub.22).Type: GrantFiled: October 7, 1988Date of Patent: July 10, 1990Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Wolfgang Seydl, Manfred Knoll, Erhard Seiler, Herbert Gutsche, Peter Kolm
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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: 4921889Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether ketone and(C) from 0.1 to 30% by weight of a polymeric component containing hydroxyl groupsand in addition(D) from 0 to 50% by weight of an impact-modifying rubber and(E) from 0 to 60% by weight of fibrous and/or particulate fillers.Type: GrantFiled: December 1, 1987Date of Patent: May 1, 1990Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Erhard Seiler
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Patent number: 4912163Abstract: Thermoplastic polyester molding materials essentially contain(A) from 20 to 89% by weight of one or more aliphatic polyesters of an aromatic dicarboxylic acid,(B) from 10 to 79% by weight of one or more aromatic polycarbonates and(C) from 1 to 40% by weight of an elastomer or of a mixture of elastomers consisting ofCA from 5 to 100% by weight of an elastomeric graft polymer composed ofCA1 not less than 50% by weight of a grafting base having a glass transition temperature T.sub.g of less than -20.degree. C.,CA2 from 5 to 20% by weight of a first graft shell consisting of a mixture of a C.sub.1 -C.sub.8 -alkyl ester of acrylic acid and a vinylaromatic in a weight ratio of from 5:95 to 70:30 andCA3 from 10 to 30% by weight of a second graft shell consisting of one or more polymers having a glass transition temperature T.sub.g above 20.degree. C.Type: GrantFiled: August 7, 1989Date of Patent: March 27, 1990Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Juergen Vietmeier, Graham E. McKee, Hans-Georg Braun, Peter Hildenbrand
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Patent number: 4879324Abstract: Thermoplastic molding compositions contain as essential components(A) from 1 to 90% by weight of a polycarbonate,(B) from 1 to 90% by weight of a polyester,(C) from 1 to 90% by weight of a polyamide,(D) from 0.5 to 30% by weight of a polymeric component having hydroxyl groups and in addition(E) from 0 to 30% by weight of an impact-modifying rubber and(F) from 0 to 60% by weight of a fibrous or particulate filler.Type: GrantFiled: February 16, 1989Date of Patent: November 7, 1989Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Erhard Seiler, Hans-Georg Braun
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Patent number: 4798855Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.Type: GrantFiled: May 13, 1987Date of Patent: January 17, 1989Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Gerd Blinne, Peter Ittemann, Gerhard Heinz, Erhard Seiler, Manfred Knoll
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Patent number: 4791158Abstract: Thermoplastic molding materials contain, as essential components,(A) from 10 to 89.99% by weight of a polyester,(B) from 10 to 89.99% by weight of a polycarbonate and(C.sub.1) from 0.01 to 1% by weight of a low molecular weight organic compound of not more than 70 carbon atoms which contains (--SO.sub.3).sub.m Q groups where Q is hydrogen, NH.sub.4 or an alkali or alkaline earth metal and m is an integer equal to the valency of Q, and/or(C.sub.2) from 0.01 to 30% by weight of a polymer containing sulfo groups and having a weight average molecular weight of not less than 1000,and, as a further component,(D) from 0 to 30% by weight of a rubber impact modifier.Type: GrantFiled: July 10, 1987Date of Patent: December 13, 1988Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Graham E. McKee, Christof Taubitz, Georg Wassmuth, Manfred Knoll