Patents Assigned to Creavis Gesellschaft Fuer
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Publication number: 20030068440Abstract: A process for producing extraction-resistant polymer coatings on surfaces.Type: ApplicationFiled: October 10, 2002Publication date: April 10, 2003Applicant: CREAVIS Gesellschaft fuer Tech. und Innovation mbHInventors: Peter Ottersbach, Beate Kossmann
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Publication number: 20030022576Abstract: The invention relates to microbicidal wallcoverings and methods of making the same.Type: ApplicationFiled: July 22, 2002Publication date: January 30, 2003Applicant: CREAVIS Gesellschaft fuer Tech. und Innovation mbHInventors: Peter Ottersbach, Martina Inhester
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Patent number: 6512626Abstract: An electrophoretic display constructed from an illumination unit, two control electrodes and a light-scattering microcompartment film. The electrophoretic display can be used as a display board, a computer display or a flat-panel display screen.Type: GrantFiled: May 9, 2001Date of Patent: January 28, 2003Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventor: Friedrich Georg Schmidt
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Publication number: 20020164443Abstract: A surface structure having protuberances with at least one protuberance configured as a three-dimensional rotationally symmetric shape. The surface structure can be included as surfaces on containers, pipettes, films, semifinished products, or reaction vessels.Type: ApplicationFiled: March 6, 2002Publication date: November 7, 2002Applicant: CREAVIS Gesellschaft fuer Tech. und Innovation mbHInventors: Markus Oles, Edwin Nun, Bernhard Schleich
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Publication number: 20020150725Abstract: A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure containing elevations and depressions,Type: ApplicationFiled: April 12, 2002Publication date: October 17, 2002Applicant: CREAVIS GESELLSCHAFT FUER TECHN. UND INNOV. MBHInventors: Edwin Nun, Markus Oles, Bernhard Schleich
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Publication number: 20020150726Abstract: A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure made from elevations and depressions, where the elevations and depressions are formed by particles secured to the surface, wherein the particles have a fissured structure with elevations and/or depressions in the nanometer range; a process for making such a surface; and particles having a fissured structure with elevations and/or depressions in the nanometer rangeType: ApplicationFiled: April 12, 2002Publication date: October 17, 2002Applicant: CREAVIS GESELLSCHAFT FUER TECHN. UND INNOV. MBHInventors: Edwin Nun, Markus Oles, Bernhard Schleich
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Publication number: 20020084553Abstract: A process for embossing hydrophobic polymers with metallic embossing dies or embossing rolls, where the embossing dies or embossing rolls are hydrophobicized prior to the first embossing procedure. An embossing die or embossing roll for embossing hydrophobic polymers is also provided.Type: ApplicationFiled: December 13, 2001Publication date: July 4, 2002Applicant: CREAVIS GESELLSCHAFT FUER TECHN. UND INNOV. MBHInventors: Edwin Nun, Markus Oles, Bernhard Schleich, Andreas Gombert, Klaus Rose, Gerhard Schottner
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Patent number: 6392065Abstract: The invention relates to a method of producing epoxy resins from hydrocarbons with olefinic double bonds, especially alkenes, by heterogeneous catalyzed oxidation in the gaseous phase. According to said method, and oxidic solid catalyst is released which contains iron as its active component at a concentration of 0.001-1% and alkali and/or alkaline earth elements as the promoters. N2O is used as the oxidizing agent. The granulated oxidic solid catalyst, especially on the basis of SiO2 as the carrier, has a specific surface of greater that 50 m2/g. The ratio of the concentrations of the active components to the promoter components is preferably between 1:100 and 10:1. The partial oxidation of hydrocarbons with olefinic double bonds, especially propene, results in propene selectivities of 10-70% at reaction temperatures of 300-500° C. and conversions of 2-30%.Type: GrantFiled: July 26, 2000Date of Patent: May 21, 2002Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Dieter Hönicke, Viorel Duma, Waldemar Krysmann
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Patent number: 6383386Abstract: The invention relates to a hydrophobic permeable composite, to a method for producing a hydrophobic permeable composite and to the use of said composite in various processes. Hydrophobic, permeable materials have been known for some time. Plastic materials especially, for example Gore-Tex®, but also materials consisting of other organic polymers are used whenever a material is required to be gas- and steam-permeable but not liquid-permeable. These materials have the disadvantage that they can only be used within a certain temperature range. The inventive composite is characterised by a higher temperature resistance since it consists mainly of inorganic materials. It is also relatively easy to produce since it can be obtained using the sol-gel technique. The inventive composite can be used as a membrane in the oxidation of aromatics, for example in the direct oxidation of benzene to phenol.Type: GrantFiled: March 10, 2000Date of Patent: May 7, 2002Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Christian Hying, Gerhard Hörpel, Bernd Penth
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Publication number: 20020028492Abstract: Process for the oxidation of hydrocarbons having 2 to 20 carbon atoms using microorganisms such as bacterial strains such as Rhodococcus ruber KB1, Rhodococcus ruber DSM 7511, Rhodococcus ruber SW 3 or Arthrobacter sp. 11075, their natural mutants or genetically modified mutants. The process can be used for producing oxidation products of hydrocarbons such as alcohols with improved selectivity, and for cleaning up water or soil samples contaminated with hydrocarbons.Type: ApplicationFiled: April 27, 2001Publication date: March 7, 2002Applicant: Creavis Gesellschaft Fuer Techn. Und Innov. MBHInventors: Hiltrud Lenke, Laura Linja, Ute Sieglen, Adolf Kuehnle, Mark Duda
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Publication number: 20020023419Abstract: A gas filter, a process for producing a gas filter and the use of the gas filter are claimed. The filtration of gases, in particular of gases which are contaminated by solids, e.g. automobile exhaust gases, is difficult since the solids which have been filtered out block the filter over the course of time. The gas filter of the invention can be used over relatively long periods of time since it is regenerable.Type: ApplicationFiled: September 21, 2001Publication date: February 28, 2002Applicant: Creavis Gesellschaft Fuer TechnologieInventors: Bernd Penth, Gerhard Hoerpel, Christian Hying
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Patent number: 6340379Abstract: A gas filter, a process for producing a gas filter and the use of the gas filter. The filtration of gases, in particular of gases which are contaminated by solids, e.g. automobile exhaust gases, is difficult since the solids which have been filtered out block the filter over the course of time. The gas filter of the invention can be used over relatively long periods of time since it is regenerable. The improvement achieved by the invention compared to conventional gas filters is that the filter comprises a composite material which can be heated in a simple manner by application of a voltage to the electrically conductive support material of the composite material and thermally decomposable substances which can block the filter can be decomposed. The filter of the invention can be used wherever gases which are contaminated by thermally decomposable solids have to be cleaned.Type: GrantFiled: July 26, 1999Date of Patent: January 22, 2002Assignee: Creavis Gesellschaft fuer Technologie und Innovation mBHInventors: Bernd Penth, Gerhard Hoerpel, Christian Hying
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Patent number: 6309545Abstract: The invention relates to a permeable composite material, a method for producing said composite material, and the use of the composite material. The inventive composite material contains essentially a porous, permeable support, another constituent having been solidified on and in or on or in said support. Said other constituent essentially contains metallic compounds with elements of the 3rd to the 6th main group. The constituent is solidified to, on or in the support by heating a suspension of the constituent suspended in a metal oxide sol applied on and in or on or in the support. The invention hereby provides a means of producing a permeable composite material in very mild conditions, either by heating strongly for a short period or by heating more moderately for a longer period. The resulting permeable composite material is excellently suited to applications in filtration and membrane technology.Type: GrantFiled: August 13, 1999Date of Patent: October 30, 2001Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Bernd Penth, Christian Hying, Gerhard Hoerpel, Friedrich Georg Schmidt
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Patent number: 6299668Abstract: Mixtures of gases, liquids or solutions are separated by contacting the mixtures with a substance-permeable material and applying a voltage to the substance-permeable material, thereby increasing the efficiency of separation techniques such as microfiltration or ultrafiltration.Type: GrantFiled: July 26, 1999Date of Patent: October 9, 2001Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Bernd Penth, Gerhard Hoerpel, Christian Hying
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Patent number: 6299778Abstract: The invention relates to a catalytically active, permeable composite material, a method for producing said composite material, and the use of the composite material. The inventive composite material can be used for separating mixtures of materials. The fact that various catalytically active substances can be incorporated into the material in various ways makes it highly flexible in terms of possible applications with properties which can be adapted to the particular purpose of an application. The inventive composite material can be used as a catalytically active membrane electrode, for example. According to the invention, the material is obtained by solidifying a suspension on and in a porous, permeable support. The production of the material requires either a very short period of heat treatment at temperatures of around 400° C. or treatment for a longer period at very mild temperatures of below 100° C.Type: GrantFiled: July 28, 1999Date of Patent: October 9, 2001Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Bernd Penth, Christian Hying, Mark Duda, Gerhard Hoerpel, Adolf Kuehnle
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Publication number: 20010006988Abstract: A process for the preparation of polymers containing double bonds by ruthenium carbene catalysis is carried out, where a ring-opening polymerization of monomers of the Formula (I) occurs 1Type: ApplicationFiled: December 22, 2000Publication date: July 5, 2001Applicant: CREAVIS Gesellschaft fuer Technologie und Innovation mbHInventors: Adolf Kuhnle, Mark Duda
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Patent number: 6210557Abstract: A process for the electrochemical oxidation of organic compounds, wherein the anode material used is a mixed oxide of formula (I) MoaBibX1cX2dX3eX4fX5gOh (I) where X1 is V, Nb, Cr, W, Ta, Ga, Ce, and/or La; X2 is Li, La, K, Rb, Cs, Cu, Ag, Au, Pd and/or Pt; X3 is Fe, Co, Ni and/or Zn; X4 is Sn, Rb, Sb and/or Te; X5 is Ti, Zr, Si and/or Al; and where a is 0-3; b is 0-3; c is 0-12.5; d is 0-5; e is 0-1.5; f is 0-1; and g is 0-25 with the proviso that a+d≧0.15.Type: GrantFiled: September 14, 1999Date of Patent: April 3, 2001Assignee: Creavis Gesellschaft für Technologie und Innovation mbHInventors: Guido Stochniol, Mark Duda, Adolf Kuehnle
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Patent number: 6166268Abstract: The invention relates to a process for preparing hydroxyl-containing aromatic compounds by catalytic oxidation.Type: GrantFiled: April 29, 1999Date of Patent: December 26, 2000Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbHInventors: Adolf Kuehnle, Mark Duda