Patents by Inventor Hans-Gerhard Fritz
Hans-Gerhard Fritz 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: 8633283Abstract: Blends made of thermoplastic polyurethanes (TPUs) and of polylactides (PLAs) are produced via A) reaction of at least one thermoplastic polyurethane with at least one diisocyanate or one diisocyanate prepolymer which has at least two isocyanate groups, or a mixture thereof, in the melt, with reduction of the molar mass of the thermoplastic polyurethane and with formation of a thermoplastic polyurethane having an excess of isocyanate end groups, B) introduction of at least one polylactide into the melt of the stage A) product, and reaction of the stage A) product with the polylactide at a temperature below 190° C., C) cooling of the resultant blend, where no polyols are used in stages A) to C).Type: GrantFiled: June 15, 2011Date of Patent: January 21, 2014Assignee: BASF SEInventors: Klaus Hilmer, Kai Brüning, Hans-Gerhard Fritz, Alina Corina Zgaverdea
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Publication number: 20110306719Abstract: Blends made of thermoplastic polyurethanes (TPUs) and of polylactides (PLAs) are produced via A) reaction of at least one thermoplastic polyurethane with at least one diisocyanate or one diisocyanate prepolymer which has at least two isocyanate groups, or a mixture thereof, in the melt, with reduction of the molar mass of the thermoplastic polyurethane and with formation of a thermoplastic polyurethane having an excess of isocyanate end groups, B) introduction of at least one polylactide into the melt of the stage A) product, and reaction of the stage A) product with the polylactide at a temperature below 190° C., C) cooling of the resultant blend, where no polyols are used in stages A) to C).Type: ApplicationFiled: June 15, 2011Publication date: December 15, 2011Applicant: BASF SEInventors: Klaus HILMER, Kai Brüning, Hans-Gerhard FRITZ, Alina Corina ZGAVERDEA
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Patent number: 7691943Abstract: Moulding compound, comprising 30 to 80% by weight of a polyamide as a thermoplastic matrix and of a cross-linked, disperse elastomer phase which is bonded to the thermoplastic matrix and contains 10 to 69% by weight of an ethylene copolymer and also 1 to 10% by weight of a compatibility agent, selected from the compounds obtained by means of grafting of ?, ?, ethylene-unsaturated mono- and/or dicarboxylic acids or derivatives thereof on an ethylene-copolymer-polymer backbone, respectively relative to the moulding compound.Type: GrantFiled: December 22, 2006Date of Patent: April 6, 2010Assignees: EMS-Chemie AG, Norma Germany GmbHInventors: Botho Hoffmann, Georg Stöppelmann, Janos Kertesz, Hans-Gerhard Fritz, Fan Jin
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Patent number: 7419720Abstract: The present invention relates to a plastics molding composition based on polyarylene sulfide and/or on liquid-crystalline plastic, where the molding composition comprises carbon black and graphite and/or metal powder, the carbon black has a specific surface area of from 500 to 1500 m2/g, and a dibutyl phthalate value of from 100 to 700 ml/100 g, and the graphite has a specific surface area of from 1 to 35 m2/g. The molding compositions of the invention have good conductivities, and better flowabilities and mechanical properties.Type: GrantFiled: January 30, 2002Date of Patent: September 2, 2008Assignee: TICONA GmbHInventors: Achim Hofmann, Hans-Gerhard Fritz, Ralf Kaiser
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Publication number: 20080202336Abstract: A flexible adsorbent body comprising, a thermoplastic polymer matrix and a porous adsorbing material, wherein said body possesses a flexural module of elasticity at 23° C. greater than about 10 MPa.Type: ApplicationFiled: December 27, 2005Publication date: August 28, 2008Inventors: Hans Hofer, Hans-Gerhard Fritz, Jochen Hammer
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Publication number: 20070232715Abstract: Moulding compound, comprising 30 to 80% by weight of a polyamide as a thermoplastic matrix and of a cross-linked, disperse elastomer phase which is bonded to the thermoplastic matrix and contains 10 to 69% by weight of an ethylene copolymer and also 1 to 10% by weight of a compatibility agent, selected from the compounds obtained by means of grafting of ?, ?, ethylene-unsaturated mono- and/or dicarboxylic acids or derivatives thereof on an ethylene-copolymer-polymer backbone, respectively relative to the moulding compound.Type: ApplicationFiled: December 22, 2006Publication date: October 4, 2007Inventors: Botho Hoffmann, Georg Stoppelmann, Janos Kertesz, Hans-Gerhard Fritz, Fan Jin
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Publication number: 20060003058Abstract: A tube-shaped food wrapper is disclosed, particularly a sausage wrapper, comprising at least two layers. The inner layer facing the food is provided with a matrix made of an organic, thermoplastic polymer material and a powdered organic filler which is embedded therein and contains a food additive that can be transferred to the filling material. The organic filler preferably consists of a carrageenan powder while the food additive preferably consists of a liquid smoke. At least one additional layer has barrier properties, i.e. is provided with a reduced permeability to water vapor and/or atmospheric oxygen. Layers based on polyolefin or polyamide are particularly suitable for the addtional layer(s).Type: ApplicationFiled: September 22, 2003Publication date: January 5, 2006Inventors: Martina Koenig, Bernhard Feron, Hans-Gerhard Fritz
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Publication number: 20050019394Abstract: The invention relates to carrageenan-containing compositions with improved gelling properties, syneresis ?3.0 wt. % and breaking strength improved by at least 20% compared to the carrageenan-containing starting material. Said composition contains at least 60 wt. % of carrageenan, preferably k-carrageenan, and a hydrocolloid or protein starch or mixtures thereof. The invention also relates to a method for improving the gelling properties of a carrageenan-containing composition, comprising humidifying the starting material, preferably with water, mixing it at elevated temperatures and conditions of high pressures and high shearing strains, and finely cooling the output material before comminuting it. The invention also relates to the use of the composition in nutriment and pharmaceutical formulations, preferably as texturing agent, viscosifier, gelling agent, film forming agent, Theological aid or stabilizer.Type: ApplicationFiled: April 6, 2004Publication date: January 27, 2005Inventors: Huilin Xia, Hans-Gerhard Fritz, Karin Born, Fabianne Bart
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Patent number: 6821588Abstract: The invention relates to a film which is produced form a thermoplastic polymer mixture containing the following: a) thermoplastic starch and/or a thermoplastic starch derivative and b) at least one polyester urethane, with the weight ratio a):b) being in the range from 75:25 to 5:95, and the surface-related degree of stretching the film being 2 to 70. The polyester urethanes forms a matrix in the mixture and the thermoplastic starch or a thermoplastic starch derivative being distributed in a microdispersion in the form of particles with a diameter dp of 0.05 to 30 &mgr;m. The invention also relates to a method for the inventive film and its use as a packaging film, especially for artificial sausage skins.Type: GrantFiled: November 21, 2000Date of Patent: November 23, 2004Assignee: Kalle GmbH & Co. KGInventors: Klaus-Dieter Hammer, Michael Ahlers, Gerhard Grolig, Hans-Gerhard Fritz, Thomas Seidenstuecker
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Publication number: 20040228937Abstract: Screw elements for twin-screw extruders are mounted on shafts which rotate in a same direction, with the screw elements having closely intermeshing outer contour for enabling a gentle incorporation of the fibers, in particular natural fibers in plastic melts and maintaining a longest possible fiber length. In the area of the surface of the screw elements, a plurality of surface structure elements are disposed which do not project beyond the outer contour of the screw element.Type: ApplicationFiled: March 16, 2004Publication date: November 18, 2004Applicant: KRAUSS-MAFFEI KUNSTSTOFFTECHNIK GMBHInventors: Joachim Ruch, Hans-Gerhard Fritz, Matthias Abendschein
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Patent number: 6790806Abstract: The core/jacket catalyst molding with a core made from an inorganic support material and with a jacket made from a catalytically active material can be prepared by coextruding an aqueous molding composition which comprises the support material or a precursor thereof, with an aqueous molding composition which comprises the catalytically active material or a precursor thereof, then drying the coextrudate, and then calcining the dried coextrudate.Type: GrantFiled: January 17, 2002Date of Patent: September 14, 2004Assignee: BASF AktiengesellschaftInventors: Michael Hesse, Rainer Anderlik, Hans-Gerhard Fritz, Jochen Hammer
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Publication number: 20040119056Abstract: The present invention relates to a plastics molding composition based on polyarylene sulfide and/or on liquid-crystalline plastic, where the molding composition comprises carbon black and graphite and/or metal powder, the carbon black has a specific surface area of from 500 to 1500 m2/g, and a dibutyl phthalate value of from 100 to 700 ml/100 g, and the graphite has a specific surface area of from 1 to 35 m2/g. The molding compositions of the invention have good conductivities, and better flowabilities and mechanical properties.Type: ApplicationFiled: December 2, 2003Publication date: June 24, 2004Inventors: Achim Hofmann, Hans-Gerhard Fritz, Ralf Kaiser
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Patent number: 6749912Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.Type: GrantFiled: June 25, 2003Date of Patent: June 15, 2004Assignee: Kalle GmbH & Co. KGInventors: Ulrich Delius, Hans-Gerhard Fritz, Runsheng Lue
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Publication number: 20040087720Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.Type: ApplicationFiled: June 25, 2003Publication date: May 6, 2004Applicant: Kalle GmbH & Co. KGInventors: Ulrich Delius, Hans-Gerhard Fritz, Runsheng Lue
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Patent number: 6610783Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.Type: GrantFiled: September 27, 2001Date of Patent: August 26, 2003Assignee: Kalle GmbH & Co. KGInventors: Ulrich Delius, Hans-Gerhard Fritz, Runsheng Lue
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Patent number: 6476134Abstract: A recyclable, thermoplastic, two-phase polymer composition that includes a continuous thermoplastic polyurethane matrix phase and a soft, finely dispersed phase based on an ethylene copolymer that is normally thermodynamically incompatible with the thermoplastic polyurethane. The soft phase includes the product of a co-crosslinking reaction between the ethylene copolymer and a reactive plasticizer such as epoxidized linseed oil.Type: GrantFiled: June 7, 2001Date of Patent: November 5, 2002Assignee: DuPont Dow Elastomers LLCInventors: Uwe Bolz, Han Gerhard Fritz
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Publication number: 20020145226Abstract: The core/jacket catalyst molding with a core made from an inorganic support material and with a jacket made from a catalytically active material can be prepared byType: ApplicationFiled: January 17, 2002Publication date: October 10, 2002Inventors: Michael Hesse, Rainer Anderlik, Hans-Gerhard Fritz, Jochen Hammer
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Patent number: 6458187Abstract: A shaped zeolite-containing body, e.g., zeolite-containing monoliths, having high compressive strength is prepared from a particular class of siloxane-based binders in combination with zeolite, plasticizing agent, and methylcellulose. It has been discovered that when using the particular class of siloxane binder with the aforementioned components, the body formed therefrom can be processed and calcined at temperatures below 300° C., thereby reducing costs typically seen with other processes for preparing shaped materials containing zeolite. The shaped bodies of this invention have been shown to have compressive strengths of at least 20 N/mm2 or more.Type: GrantFiled: November 6, 2000Date of Patent: October 1, 2002Assignee: Grace GmbH & Co. KGInventors: Hans-Gerhard Fritz, Christian Trefzger, Hans Hermann Höfer
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Publication number: 20020065364Abstract: A polymer blend disclosed has a coherent phase made from an aliphatic and/or semiaromatic (co)polyamide and, dispersed therein, a phase made from an olefin block copolymer grafted with intramolecular carboxylic anhydrides. The olefin block copolymer preferably comprises PP blocks and EPM blocks, and, where appropriate, also EBM blocks. A flat or tubular film is also disclosed wherein at least one layer thereof comprises the polymer blend. The film has preferably been mono- or biaxially oriented, and, where appropriate, also heat-set. A tubular film of the present invention is particularly suitable as a synthetic casing for sausages.Type: ApplicationFiled: September 27, 2001Publication date: May 30, 2002Inventors: Ulrich Delius, Hans-Gerhard Fritz, Runsheng Lue
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Patent number: 6339123Abstract: Heterophasic polyolefin alloys, with a semi-interpenetrating network structure and an outstanding combination of high stiffness, low temperature toughness and optionally a low coefficient of thermal expansion of propylene polymers and elastomers, are produced by melt compounding propylene polymers with a co-continuous blend, which contains 5 to 60% by weight of gel and was produced by reacting mixtures of propylene polymers and elastomeric polyolefins or styrene butadiene ethylene terpolymers with ethylenically unsaturated, hydrolyzable organosilane compounds in the presence of silanol condensation catalysts. Heterophasic polyolefin alloys are suitable for the production of films, sheets, fibers, panels, coatings, injection molded article, pipes, hollow objects and foams.Type: GrantFiled: June 30, 1999Date of Patent: January 15, 2002Assignee: Borealis GmbHInventors: Manfred Raetzsch, Norbert Reichelt, Achim Hesse, Hans-Gerhard Fritz, Uwe B{haeck over (o)}lz