Patents by Inventor Bernhard Schleich

Bernhard Schleich 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).

  • Patent number: 7964244
    Abstract: The present invention describes a process for preparing a surfactant-free suspension including hydrophobic particles and at least 50.01% by weight of water, where hydrophobic, nanostructured particles are suspended in at least one organic solvent miscible with water and having a boiling point below 150° C., and then this concentrated organic suspension is intensively and thoroughly mixed with surfactant-free water.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: June 21, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Oles, Edwin Nun, Bernhard Schleich
  • Publication number: 20110136400
    Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.
    Type: Application
    Filed: November 3, 2010
    Publication date: June 9, 2011
    Applicant: DEGUSSA AG
    Inventors: Volker HENNIGE, Christian HYING, Gerhard HÖRPEL, Markus OLES, Edwin NUN, Bernhard SCHLEICH
  • Patent number: 7842624
    Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Volker Hennige, Christian Hying, Gerhard Hörpel, Markus Oles, Edwin Nun, Bernhard Schleich
  • Patent number: 7211313
    Abstract: A self-regenerating, self-cleaning hydrophobic surface is formed when particles are secured on a carrier that is itself a mixture of particles and binder. When particles on the surface are ablated by erosion, new particles in the carrier are exposed to regenerate the self-cleaning surface, resulting in a long-lasting self-cleaning action. The self-cleaning surface may be used with particular advantage outdoors, e.g. on vehicles, where self-cleaning materials are particularly exposed to the effects of the environment.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: May 1, 2007
    Assignee: Degussa AG
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20060172641
    Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.
    Type: Application
    Filed: December 21, 2005
    Publication date: August 3, 2006
    Applicant: DEGUSSA AG
    Inventors: Volker Hennige, Christian Hying, Gerhard Horpel, Markus Oles, Edwin Nun, Bernhard Schleich
  • Publication number: 20060156475
    Abstract: The present invention relates to textile sheetlike constructions having an enhanced watertightness and also to a process for producing them. It was found that, surprisingly, the watertightness of porous textile sheetlike constructions is enhanced when a coating of hydrophobic particles having an average particle size in the range from 0.02 to 100 ?m is applied to the surfaces of the fibers. The textile sheetlike constructions can be used for example as textile building materials or for producing tents, umbrellas or the like.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 20, 2006
    Applicant: DEGUSSA AG
    Inventors: Markus Oles, Gerhard Schoepping, Peter Rudek, Peter Mayr, Uwe Marg, Edwin Nun, Bernhard Schleich
  • Publication number: 20060127644
    Abstract: Diffuse-reflection surfaces which have a matte appearance and which have self-cleaning properties and preferably have antimicrobial properties, are prepared by coating a substrate with a random distribution of the particles to at least one surface of a substrate, thereby providing a surface comprising elevations with a height of from 20 nm to 100 ?m and with a separation of less than 100 ?m between the elevations. Such diffuse-reflection surfaces can be used as protective covers or as protective layers, in particular for providing non-angle-dependent viewing. The diffuse reflection surfaces of the present invention have self-cleaning properties and are resistant to colonization by microorganisms.
    Type: Application
    Filed: February 3, 2006
    Publication date: June 15, 2006
    Applicant: CREAVIS Gesellschaft fur Tech. und Innovation mbH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20050205830
    Abstract: The present invention describes a process for preparing a surfactant-free suspension including hydrophobic particles and at least 50.01% by weight of water, where hydrophobic, nanostructured particles are suspended in at least one organic solvent miscible with water and having a boiling point below 150° C., and then this concentrated organic suspension is intensively and thoroughly mixed with surfactant-free water.
    Type: Application
    Filed: May 28, 2003
    Publication date: September 22, 2005
    Applicant: CREAVIS Gesellschaft fure tech. und Innovation mbH
    Inventors: Markus Oles, Edwin Nun, Bernhard Schleich
  • Publication number: 20050208269
    Abstract: The invention relates to sheet extrudates with surfaces which have self-cleaning properties, and also to a simple process for producing these self-cleaning surfaces. The process of the invention is very simple, since it can make use of existing equipment. Sheet extrudates are usually smoothed by means of rolls. The process of the invention makes use of these rolls by applying microparticles to these rolls. The particles are impressed into the surface of the extrudate and thus transferred thereto during smoothing of the extrudates. The process of the invention provides access to self-cleaning surfaces which comprise particles with a fissured structure, without any need to apply an additional emboss layer or a foreign-material carrier layer to the moldings. Extrudates of the invention may have the shape of a film or sheet, for example.
    Type: Application
    Filed: February 5, 2003
    Publication date: September 22, 2005
    Applicant: DEGUSSA AG
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich, Gernot Dambacher
  • Publication number: 20050167877
    Abstract: The invention relates to injection moldings with surfaces which have self-cleaning properties, and also to a simple process for producing the self-cleaning surfaces. The process of the invention is very simple, since it can make use of currently available equipment. Injection molded parts are usually produced by means of injection molds into which the material is injected. The process of the invention makes use of this process in that prior to the actual injection-molding process microparticles are applied to the injection mold and, during the injection-molding process, are transferred to the injection-molded part in that the particles are pressed into the surface of the injection-molded part. The process of the invention gives access to self-cleaning surfaces which have particles with a fissured structure, without any need to apply an additional emboss layer or foreign-material backing layer to the molding. Injection moldings of the invention may be three-dimensional articles of almost any type.
    Type: Application
    Filed: February 5, 2003
    Publication date: August 4, 2005
    Applicant: CREAVIS GESELLSCHAFT F. TECHN. U. INNOVATION MBH
    Inventors: Edwin Nun, Gernot Dambacher, Bernhard Schleich, Markus Oles
  • Publication number: 20050163951
    Abstract: The invention relates to devices produced by injection molding for storing and/or handling liquids, which can be emptied without residues, and also to a simple process for producing such devices. Liquids are frequently taken up and distributed in a defined manner using pipette tips, syringes, ampoules or similar devices. However, for technical reasons, the pipette tips available on the market today cannot pipette the smallest volumes desired without contact, i.e. provide unaided and complete release of the liquid to be pipetted from the pipette tip. Equally, it is currently impossible to completely empty storage vessels. The devices according to the invention overcome this problem by the surfaces which come into contact with the liquid being provided with self-cleaning properties. This makes it possible to take up and distribute liquids without residue in a simple manner and to completely empty storage vessels. The process according to the invention is very simple since it can use existing equipment.
    Type: Application
    Filed: February 3, 2003
    Publication date: July 28, 2005
    Inventors: Markus Oles, Edwin Nun, Bernhard Schleich
  • Patent number: 6858284
    Abstract: A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure containing elevations and depressions, which comprises an at least partially hydrophobic surface formed from structure-forming particles of hydrophobic fumed silica having elevations and depressions ranging in dimensions of 1 to 1000 nm and the particles themselves having an average size of less than 50 ?m adhered to the surface by way of a viscous, curable carrier material selected from the group consisting of polyurethane, polyurethane acrylates, silicone acrylates and singly and/or multiply unsaturated (meth)acrylates applied to the surface, which is sufficient to bond the structure forming particles without substantial wetting of the particles by the carrier material while retaining the fissured structure of elevations and depressions of the structure-forming particles in the nanometer range.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: February 22, 2005
    Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Patent number: 6852389
    Abstract: A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure containing elevations and depressions, which comprises a surface having structure-forming particles, which are formed of hydrophobic, fumed silica, adhered thereto by way of fixative particles applied to the surface, whereby the structure-forming particles and the fixative particles have elevations and depressions ranging in dimensions of 1 to 1000 nm and the particles themselves having an average size of less than 50 ?m, the particles providing said surface structure of elevations and depressions, wherein, by incipient melting of the fixative particles, only partial melting of the fixative particles occurs which is sufficient to bond the structure forming particles without substantial wetting of the particles by the fixative particles to said surface while retaining, the fissured structure of the structure-forming particles in the nanometer range.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 8, 2005
    Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Patent number: 6811856
    Abstract: 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 range.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: November 2, 2004
    Assignee: Creavis Gesellschaft fuer Technologie und Innovation mbH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20030134086
    Abstract: Diffuse-reflection surfaces which have a matte appearance and which have self-cleaning properties and preferably have antimicrobial properties, are prepared by coating a substrate with a random distribution of the particles to at least one surface of a substrate, thereby providing a surface comprising elevations with a height of from 20 nm to 100 &mgr;m and with a separation of less than 100 &mgr;m between the elevations. Such diffuse-reflection surfaces can be used as protective covers or as protective layers, in particular for providing non-angle-dependent viewing. The diffuse reflection surfaces of the present invention have self-cleaning properties and are resistant to colonization by microorganisms.
    Type: Application
    Filed: November 14, 2002
    Publication date: July 17, 2003
    Applicant: CREAVIS Gesellschaft fur Tech. und Innovation mbH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20030013795
    Abstract: A self-regenerating, self-cleaning hydrophobic surface is formed when particles are secured on a carrier that is itself is a mixture of particles and binder. When particles on the surface are ablated by erosion, newt particles in the carrier are exposed to regenerate the self-cleaning surface, resulting in a long-lasting self-cleaning action. The self-cleaning surface may be used with particular advantage outdoors, e.g. on vehicles, where self-cleaning materials are particularly exposed to the effects of the environment.
    Type: Application
    Filed: May 3, 2002
    Publication date: January 16, 2003
    Applicant: CREAVIS GESELLSCHAFT F. TECHN. U. INNOVATION MBH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20020192385
    Abstract: Polymeric substrate are coated by a process comprising pretreating the polymeric substrate by at least one physical method selected from the group consisting of corona discharge, flaming, glow discharge, irradiation with electromagnetic waves, and a plasma pretreatment, then coating the pretreated polymeric substrate with a composition comprising a fluoroalkyl-containing silicon compound. The resulting coated is very thin, highly hydrophobic and oleophobic. The coatings prepared by the process of the present invention are stable in boiling water and are resistant to abrasion.
    Type: Application
    Filed: January 4, 2002
    Publication date: December 19, 2002
    Applicant: DEGUSSA AG
    Inventors: Peter Jenkner, Eckhard Just, Markus Oles, Bernhard Schleich, Peter Hommes
  • Publication number: 20020164443
    Abstract: 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: Application
    Filed: March 6, 2002
    Publication date: November 7, 2002
    Applicant: CREAVIS Gesellschaft fuer Tech. und Innovation mbH
    Inventors: Markus Oles, Edwin Nun, Bernhard Schleich
  • Publication number: 20020148601
    Abstract: A condensation apparatus for condensing a gas on a surface, where the surface for condensing the gas has elevations of average height of from 50 nm to 1 mm, and with an average separation of from 50 nm to 1 mm, allows increased condensation efficiency. The apparatus is used for condensing organic or inorganic gases and may be incorporated into distillation systems.
    Type: Application
    Filed: December 28, 2001
    Publication date: October 17, 2002
    Inventors: Martin Roos, Edwin Nun, Markus Oles, Bernhard Schleich
  • Publication number: 20020150724
    Abstract: A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure of elevations and depressions, where the elevations and depressions are formed by particles secured by a carrier on the surface, wherein the particles have a fissured structure with elevations and/or depressions in the nanometer range; and a process for making such a surface.
    Type: Application
    Filed: April 9, 2002
    Publication date: October 17, 2002
    Applicant: CREAVIS GESELLSCHAFT F. TECHN. U. INNOVATION MBH
    Inventors: Edwin Nun, Markus Oles, Bernhard Schleich