Patents by Inventor Hermann Buchert
Hermann Buchert 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: 5910558Abstract: Micropowders having spherical particles possessing an essentially smooth surface structure contain, as essential components, polyarylene ether sulfones or polyarylene ether ketones and are obtainable by prilling melts thereof or spray-drying solutions thereof.Type: GrantFiled: July 21, 1997Date of Patent: June 8, 1999Assignee: BASF AktiengesellschaftInventors: Michael Schoenherr, Juergen Ahlers, Hermann Buchert
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Patent number: 5230955Abstract: Thermoplastically re-formable plastic sheets with flameproofing means, characterized by a core layer 1-10 mm thick comprised of polyether sulfone or a similar thermoplastic, which core material has a content of at least 0.5 wt. %, preferably at least 2 wt. %, of a flame-protective additive, such as boron trioxide; and said sheet or plate further characterized by outer layers, firmly adhering to and covering the two faces of the core layer, at least 0.05 mm thick and comprised of a thermoplastic having a lower proportional content of the flame-protective additives than the core layer; are particularly useful for interior structures in passenger conveyances, such as airplanes.Type: GrantFiled: March 20, 1991Date of Patent: July 27, 1993Assignees: Rohm GmbH Chemische Fabrik, BASF AktiengesellschaftInventors: Otto Diroll, Klaus Hofmann, Uwe Jacobsen, Hans Lorenz, Gunther Schreyer, Peter R. Szigeti, Hermann Buchert, Wolfgang Eberle, Gerhard Heinz, Eckhard Koch
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Patent number: 5133178Abstract: A polyether ketone sewing yarn comprises a multifilament yarn having an individual filament linear density of from 1.0 to 10 dtex, an elongation at break of from 3 to 30% and a boil shrinkage of less than 10%.Type: GrantFiled: March 28, 1990Date of Patent: July 28, 1992Assignee: BASF AktiengesellschaftInventors: Hermann Buchert, Rainer Neuberg, Hans G. Matthies, Karl-Heinz Butzheinen
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Patent number: 5120784Abstract: Thermoplastic molding compositions suitable for producing interior components for vehicles for the conveyance of passengers, in particular aircraft, which show a low smoke gas density and low heat release characteristics in the event of a fire, are based on a heat-resistant plastic which contains as a filler from 0.5 to 50 % by weight of an oxide of an element of main group III, IV or V, of a salt of an oxygen acid of an element of main group III, IV or V or of a compound which on heating forms such an oxide or salt.Type: GrantFiled: March 11, 1991Date of Patent: June 9, 1992Assignee: BASF AktiengesellschaftInventors: Hermann Buchert, Gerhard Heinz, Peter Ittemann, Michael Kopietz, Juergen Koch, Wolfgang Eberle, Hartmut Zeiner
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Patent number: 5112901Abstract: Spherically shaped sealing elements and plain bearings are formed from a high-melting polycondensation thermoplastic reinforced with tangentially oriented continuous or staple fibers.Type: GrantFiled: May 14, 1990Date of Patent: May 12, 1992Assignee: BASF AktiengesellschaftInventors: Hermann Buchert, Juergen Ahlers, Werner Kohlhaas, Joerg Vogelsang, Manfred Neitzel
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Patent number: 5032639Abstract: Thermoplastic molding compositions suitable for producing interior components for vehicles for the conveyance of passengers, in particular aircraft, which show a low smoke gas density and low heat release characteristics in the event of a fire, are based on a heat-resistant plastic which contains as a filler from 0.5 to 50% by weight of an oxide of an element of main group III, IV or V, of a salt of an oxygen acid of an element of main group III, IV or V or of a compound which on heating forms such an oxide or salt.Type: GrantFiled: May 16, 1990Date of Patent: July 16, 1991Assignee: BASF AktiengsellschaftInventors: Hermann Buchert, Gerhard Heinz, Peter Ittemann, Michael Kopietz, Juergen Koch, Wolfgang Eberle, Hartmut Zeiner
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Patent number: 5008364Abstract: Thermoplastic molding materials which are stable at high temperatures and are based on polyaryl ether sulfones and, if required, polyether ketones have a content of alkali metal salts of not more than 100 ppm, based on total polymer.Type: GrantFiled: June 20, 1988Date of Patent: April 16, 1991Assignee: BASF AktiengesellschaftInventors: Peter Ittemann, Georg N. Simon, Gerhard Heinz, Hartmut Zeiner, Hermann Buchert, Joachim Seibring
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Patent number: 4981895Abstract: Thermoplastic molding compositions suitable for producing interior components for vehicles for the conveyance of passengers, in particular aircraft, which show a low smoke gas density and low heat release characteristics in the event of a fire, are based on a heat-resistant plastic which contains as a filler from 0.5 to 50% by weight of an oxide of an element of main group III, IV or V, of a salt of an oxygen acid of an element of main group III, IV or V or of a compound which on heating forms such an oxide or salt.Type: GrantFiled: August 17, 1989Date of Patent: January 1, 1991Assignee: BASF AktiengesellschaftInventors: Hermann Buchert, Gerhard Heinz, Peter Ittemann, Michael Kopietz, Juergen Koch, Wolfgang Eberle, Hartmut Zeiner
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Patent number: 4942095Abstract: Laminates are essentially composed of(A) a thermoplastic which is stable at high temperatures and is based on polyarylethersulfones, polyaryletherketones, polyetherimides or thermotropic polymers and(B) a metallic foil which is applied directly to the said polymers and whose surface area has been increased by chemical or mechanical treatment,the side having an increased surface area facing the thermoplastic which is stable at high temperatures, and the adhesion between the metallic foil (B) and the thermoplastic (A) which is stable at high temperatures being not less than 1.9 N/mm, measured at a peeling speed of 20 mm/min and a peeling angle of 180.degree..Type: GrantFiled: November 7, 1988Date of Patent: July 17, 1990Assignee: BASF AktiengesellschaftInventors: Hermann Buchert, Gerhard Grimm, Helmut Muenstedt
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Patent number: 4762869Abstract: High temperature resistant molding materials containing(A) 5-95 mol % of blocks having the structural unit I ##STR1## (B) 5-95 mol % of blocks having the structural unit II ##STR2## (C) 0-80 mol % of blocks having the structural unit III ##STR3## the molecular weight of the blocks being within the range 2000-20,000, where X is --O--, --S--, ##STR4## (only if a or b.noteq.0), ##STR5## (R.sup.7 =R.sup.8 =CH.sub.3 only if a or b.noteq.O) or a chemical bond, R.sup.7 and R.sup.8 are each alkoxy or alkyl of 1-6 carbon atoms, aryl or hydrogen, Q and W are each ##STR6## Z is --O-- or a chemical bond and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each alkyl or alkoxy of 1-6 carbon atoms, aryl, Cl or F and p, q and r are each 0 or 1 and a, b, c, d and e are each 0, 1, 2, 3 or 4.Type: GrantFiled: April 16, 1987Date of Patent: August 9, 1988Assignee: BASF AktiengesellschaftInventors: Gerhard Heinz, Hermann Buchert, Juergen Koch, Georg N. Simon, Peter Ittemann, Hartmut Zeiner
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Patent number: 4362682Abstract: An equilibrium melt from a standard hydrolytic or anionic polymerization of caprolactam is spun at a temperature between about 230.degree. and 270.degree. C. through a spinnerette, preferably one having a multiplicity of holes spaced from each other in an asymmetric arrangement, the spinning take-away speed being less than about 250 meters/minute. The molten strands of polycaprolactam are quenched in two phases: (1) gas at a temperature of less than 20.degree. C. is directed from a first entrance in a crosscurrent flow upon the face of the spinnerette and upon the molten polycaprolactam strands immediately adjacent thereto, and is exhausted adjacent to the back of the spinnerette; and (2) gas at a temperature of less than 20.degree. C. is directed in a countercurrent flow from a second entrance downstream from the first entrance with respect to the direction of movement of the polycaprolactam strands; whereby the surface temperature of the polycaprolactam strands is reduced to 30.degree.-70.degree. C.Type: GrantFiled: August 21, 1980Date of Patent: December 7, 1982Assignee: Badische CorporationInventors: Gerald A. Berg, Hermann Buchert, Steve R. Duffy, Richard E. Harder, E. R. Higgs, Louis D. Hoblit, James R. Ryffel, Walter P. Smith, Edwin L. Stenzel
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Patent number: 4111818Abstract: Melt spun yarns are treated with a finish which is an aqueous solution or dispersion containing an alkoxylated alcohol or thiol as the sole essential organic component thereof.Type: GrantFiled: August 15, 1977Date of Patent: September 5, 1978Assignee: Dow Badische CompanyInventors: William Postman, James B. Louch, Hermann Buchert