Patents by Inventor Uwe Guhr
Uwe Guhr 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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Publication number: 20070045942Abstract: The invention relates to a mechanism for laterally aligning sheets, said mechanism comprising a suction device that grips the sheets and guides them with the side edges against a side lay. The mechanism comprises at least one suction plate provided with suction holes. The invention modifies a mechanism for laterally aligning sheets in such a way that heavy and special print substrates can be gripped and aligned easily by the side edges. The mechanism of the present invention comprises suction openings (8.1) of the suction holes (8) open into grooves (9), which are open towards the sheets to be aligned (FIG. 1).Type: ApplicationFiled: August 17, 2006Publication date: March 1, 2007Applicant: Koenig & Bauer AGInventors: Carsten Reinsch, Volkmar Schumann, Uwe Guhr
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Patent number: 5262445Abstract: Expandable styrene polymers containinga) from 80 to 99% by weight of polystyrene,b) from 1 to 20% by weight of a styrene-soluble polymer having a softening point above 140.degree. C.,c) from 3 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, d) conventional additives,the mixture of components a) and b) having a melt flow index MFI 200/5 of from 15 to 30, have high heat distortion resistance and a high capacity for expansion.Type: GrantFiled: July 15, 1992Date of Patent: November 16, 1993Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
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Patent number: 5206271Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C.sub.3 -to C.sub.6 -hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.Type: GrantFiled: March 24, 1992Date of Patent: April 27, 1993Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Hans Hoenl
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Patent number: 5177115Abstract: An oil-resistant, expandable styrene polymer containsa) from 10 to 90% by weight of uncrosslinked polystyrene and/or an uncrosslinked styrene copolymer containing at least 50% by weight of copolymerized styrene,b) from 10 to 90% by weight of a crosslinked styrene polymer which contains at least 0.1% by weight, but less than 2% by weight, of a copolymerized monomer having at least two olefinic double bonds,c) from 1 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired,d) conventional additives in effective amounts,the mixture of a) and b) having a melt flow index MFI (200.degree. C., 5.0 kp) in accordance with DIN 53 735 of from 1 to 20 [g/10 min].Type: GrantFiled: November 20, 1991Date of Patent: January 5, 1993Assignee: BASF AktiengesellschaftInventors: Hans Hintz, Klaus Hahn, Uwe Guhr, Michael Riethues
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Patent number: 5173514Abstract: Expandable styrene polymers containinga) from 80 to 99% by weight of polystyrene,b) from 1 to 20% by weight of a styrene-soluble polymer having a softening point above 140.degree. C.,c) from 3 to 10% by weight, based on the sum of a) and b), of a C.sub.3 - to C.sub.6 -hyrocarbon as blowing agent, and, if desired, d) conventional additives,the mixture of components a) and b) having a melt flow index MFI 200/5 of from 15 to 30, have high heat distortion resistance and a high capacity for expansion.Type: GrantFiled: November 7, 1991Date of Patent: December 22, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
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Patent number: 5166221Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.Type: GrantFiled: October 31, 1990Date of Patent: November 24, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Hans Hoenl
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Patent number: 5106684Abstract: Foam sheets of high heat distortion resistance contain a) from 80 to 99% by weight of a styrene polymer and b) from 1 to 20% by weight of poly-1,4-phenylene sulfide, and, if desired, conventional additives and are produced by extrusion using a low-boiling blowing agent.Type: GrantFiled: February 15, 1991Date of Patent: April 21, 1992Assignee: BASF AktiengesellschaftInventors: Reinhold Weber, Gerhard Alicke, Manfred Weilbacher, Uwe Guhr, Klaus Hahn
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Patent number: 5104903Abstract: Bead-form expandable styrene polymers containing a styrene polymer having a mean molecular weight (weight average) of less than 130.multidot.10.sup.3 and a steep high-molecular-weight flank of the molecular-weight distribution curve, and 0.15 to 1.5 mol of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, customary additives in effective amounts, are distinguished by a particularly high expansion capacity.Type: GrantFiled: June 4, 1990Date of Patent: April 14, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Rolf Richter
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Patent number: 5100923Abstract: In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight of polyvinylpyrrolidone having a K value of from 100 to 150 as protective colloid.Type: GrantFiled: October 31, 1990Date of Patent: March 31, 1992Assignee: BASF AktiengesellschaftInventors: Hans Hintz, Uwe Guhr, Klaus Hahn
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Patent number: 5096931Abstract: An expandable styrene polymer containinga) a styrene polymer,b) from 0.05 to 3% by weight, based on a), of water,c) from 0.001 to 1% by weight, based on a), of a finely divided organic polymer having a water absorption capacity of 10 g/g or more,d) from 0.5 to 8% by weight, based on a), of a C.sub.3 - to C.sub.6 -hydrocarbon, and, if desired,e) conventional additives in effective amounts, have good flow properties and low adhesion during prefoaming.Type: GrantFiled: May 3, 1991Date of Patent: March 17, 1992Assignee: BASF AktiengesellschaftInventors: Dietmar Wittenberg, Klaus Hahn, Uwe Guhr, Hans Hintz, Michael P. O'Callaghan, deceased, Michael Riethues
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Patent number: 5093374Abstract: Expandable molding compositions having high heat distortion resistance and containing from 80 to 99% by weight of a styrene polymer, 1 to 20% by weight of poly-1,4-phenylene sulfide, from 1 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon as blowing agent and, if desired, customary additives, are obtained by suspension polymerization of a solution of the polyphenylene sulfide in styrene.Type: GrantFiled: June 28, 1990Date of Patent: March 3, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg
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Patent number: 5093375Abstract: Bead-like expandable molding materials having high heat distortion resistance contain from 80 to 99% by weight of a styrene polymer, from 1 to 20% by weight of poly-(2,6-dimethyl)-1,4-diphenylene ether and from 3 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon as a blowing agent and may contain conventional additives. They are obtained by suspension polymerization of a solution of the polyphenylene ether in styrene.Type: GrantFiled: January 31, 1990Date of Patent: March 3, 1992Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Roland Gellert
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Patent number: 5071703Abstract: Foam sheets of high heat distortion resistance contain a) from 80 to 99% by weight of a styrene polymer and b) from 1 to 20% by weight of poly(2,6-dimethyl-1,4-phenylene oxide), and, if desired, conventional additives and are produced by extrusion using a low-boiling blowing agent.Type: GrantFiled: January 10, 1991Date of Patent: December 10, 1991Assignee: BASF AktiengesellschaftInventors: Reinhold Weber, Gerhard Alicke, Manfred Weilbacher, Uwe Guhr, Klaus Hahn
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Patent number: 5043218Abstract: Flame-resistant, expandable styrene polymers containing a styrene (co)polymer, from 0.4 to 6% by weight of hexabromocyclododecane having a mean particle size of from 1 to 50 .mu.m, the particles being provided with a firm coating which has a thickness of from 1/100 to 1/10 of the particle diameter and is insoluble in water and styrene, from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, customary additives, are distinguished by a reduced internal water content and can be processed to form foams which have an improved foam structure and high UV stability.Type: GrantFiled: December 11, 1990Date of Patent: August 27, 1991Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg, Peter Gleich
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Patent number: 5010111Abstract: Flame-resistant, expandable styrene polymers containing a styrene (co)polymer, from 0.4 to 6% by weight of hexabromocyclododecane having a mean particle size of from 1 to 50 .mu.m, the particles being provided with a firm coating which has a thickness of from 1/100 to 1/10 of the particle diameter and is insoluble in water and styrene, from 1 to 10% by weight of a C.sub.3 - to C.sub.6 -hydrocarbon as blowing agent, and, if desired, customary additives, are distinguished by a reduced internal water content and can be processed to form foams which have an improved foam structure and high UV stability.Type: GrantFiled: August 10, 1990Date of Patent: April 23, 1991Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Dietmar Wittenberg, Peter Gleich
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Patent number: 4990539Abstract: Styrene polymer foam particles of from 10 to 30 kg/m.sup.3 in density are obtained by foaming styrene polymers which, per kg, contain from 0.7 to 3 moles of blowing agent mixture composed of from 60 to 90 mol % of water and from 10 to 40 mol % of the C.sub.4 - or C.sub.5 -hydrocarbon with the aid of microwaves.Type: GrantFiled: November 17, 1989Date of Patent: February 5, 1991Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Roland Gellert, Wolf-Dieter Back
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Patent number: 4990540Abstract: Expandable styrene polymers formed from 50 to 83% by weight of polystyrene and from 17 to 50% by weight of styrene-soluble styreneacrylonitrile copolymer having a total acrylonitrile content of not less than 5% by weight, containing from 3 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon with or without customary additives, are notable for high oil resistance and can be prepared by suspension polymerization of a solution of the styrene-acrylonitrile copolymer in styrene.Type: GrantFiled: December 18, 1989Date of Patent: February 5, 1991Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Roland Gellert
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Patent number: 4983639Abstract: Expandable styrene polymers of from 95 to 99.5% by weight of polystyrene and from 0.15 to 5% by weight of a styrene-soluble styrene/acrylonitrile copolymer having a total content of not less than 0.15% by weight of acrylonitrile, which contain from 3 to 10% by weight of a C.sub.3 -C.sub.6 -hydrocarbon and may contain conventional additives, give foams which do not shrink. The said styrene polymers can be prepared by suspension polymerization of a solution of the styrene/acrylonitrile copolymer in styrene.Type: GrantFiled: February 28, 1990Date of Patent: January 8, 1991Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz
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Patent number: 4980381Abstract: Bead-form expandable styrene polymers are obtained by suspension polymerization of styrene with addition of from 1 to 10% by weight of C.sub.3 - to C.sub.6 -hydrocarbons as blowing agents and, if desired, customary additives, where(a) the polymerization is initiated by rapidly heating the polymerization batch to form 80.degree. to 90.degree. C. within a maximum of 2 hours,(b) subsequently allowing the reaction temperature to increase to from 120.degree. C. to 130.degree. C. by from 8.degree. to 17.degree. C. per hour, and(c) the conversion is formed 30 to 60% when 100.degree. C. is reached, and(d) the conversion is 80% or more when the maximum temperature is reached, and(e) the batch is subsequently kept at from 100.degree. to 130.degree. C. until the residual monomer content in the polymer has dropped to less than 0.1%.Type: GrantFiled: June 4, 1990Date of Patent: December 25, 1990Assignee: BASF AktiengesellschaftInventors: Hans Hintz, Uwe Guhr, Klaus Hahn, Hans G. Keppler
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Patent number: 4973610Abstract: Expandable styrene polymers which contain a C.sub.3 -C.sub.6 -hydrocarbon as a blowing agent, an organic bromine compound as a flameproofing agent and small amounts of ammonium salt and of an organic amine give, on expansion, foams which have a particularly homogenous foam structure and a good heat insulation effect.Type: GrantFiled: April 10, 1990Date of Patent: November 27, 1990Assignee: BASF AktiengesellschaftInventors: Klaus Hahn, Uwe Guhr, Hans Hintz, Karl H. Roehrig