Patents by Inventor Helmut Haering
Helmut Haering 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).
-
Publication number: 20230391057Abstract: Coextruded acrylic foils made from impact-modified polyalkyl (meth)acrylates and laser engravable labels containing these foils. The coextruded acrylic foils are designed for labelling by a laser and contain a contrast layer having at least one inorganic filler and an engraving layer arranged on the contrast layer and having at least one colourant.Type: ApplicationFiled: October 21, 2021Publication date: December 7, 2023Applicant: Roehm GmbHInventors: Kim STRUWE, Markus PARUSEL, Ghirmay SEYOUM, Claude GUÉNANTEN, Helmut HAERING
-
Publication number: 20230106433Abstract: An acrylic multilayer foil includes a layer in which silica particles are uniformly distributed in an acrylic polymer matrix and at least one further layer. Due to adhesive promoting properties of the layer containing silica particles, the multilayer foil can be easily coated or laminated onto a substrate. The foil has a high weathering resistance and excellent mechanical properties. Therefore, the multilayer foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: February 18, 2021Publication date: April 6, 2023Applicant: Roehm GmbHInventors: Ghirmay SEYOUM, Michael ENDERS, Herbert GROOTHUES, Claude GUENANTEN, Kim STRUWE, Helmut HAERING, Girolamo MUSCI
-
Publication number: 20230100304Abstract: An acrylic multilayer foil includes a layer A in which silica particles are uniformly distributed in an acrylic polymer matrix and a coating layer D. Due to adhesive promoting properties of the layer A containing silica particles, the coating layer D can be advantageously applied onto the layer A. The foil has a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: February 18, 2021Publication date: March 30, 2023Applicant: Roehm GmbHInventors: Ghirmay SEYOUM, Michael ENDERS, Herbert GROOTHUES, Claude GUENANTEN, Kim STRUWE, Helmut HAERING, Girolamo MUSCI
-
Patent number: 11285708Abstract: Heat resistant brittle films can be made from impact-modified poly(meth)acrylimide, and forgery prevention labels can contain the heat resistant brittle films. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be transparent, translucent, or entirely non-transparent, e.g., white. Ideally, the brittle films and the forgery prevention labels containing the brittle films have no intended break points such as slits, perforation, etc.Type: GrantFiled: February 7, 2020Date of Patent: March 29, 2022Assignees: Röhm GmbH, Roehm America LLCInventors: Ghirmay Seyoum, Markus Parusel, Kim Struwe, Anderson Costa, Claude Guénanten, Helmut Häring
-
Publication number: 20220040963Abstract: Heat resistant brittle films can be made from impact-modified poly(meth)acrylimide, and forgery prevention labels can contain the heat resistant brittle films. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be transparent, translucent, or entirely non-transparent, e.g., white. Ideally, the brittle films and the forgery prevention labels containing the brittle films have no intended break points such as slits, perforation, etc.Type: ApplicationFiled: February 7, 2020Publication date: February 10, 2022Applicants: Röhm GmbH, Roehm America LLCInventors: Ghirmay Seyoum, Markus Parusel, Kim Struwe, Anderson Costa, Claude Guénanten, Helmut Häring
-
Publication number: 20190358940Abstract: An extruded matt foil has at least one layer in which glass beads are uniformly distributed in a polymer matrix with at least one fluoropolymer and at least one further layer. The matt foil has a particularly high UV-resistance, a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: December 5, 2017Publication date: November 28, 2019Applicant: Evonik Röhm GmbHInventors: Claude Guénanten, Helmut Häring, Detlef Birth, Max Conrad, Eric Reinheimer, Günther Dickhaut, Ghirmay Seyoum, Wangelis Karampougioukis, Girolamo Musci
-
Patent number: 10466406Abstract: A process for producing a light guide plate includes producing a colorless transparent sheet from a colorless transparent material by extrusion with a polishing stack. A printed reflector film is laminated in-line to the colorless transparent sheet. The printed reflector film includes: a thermoplastic reflector film which is opaque white or translucent white and made of a thermoplastic material; and a colorless thermoplastic printed on the thermoplastic reflector film. There is no direct optical contact between the colorless transparent sheet and the thermoplastic reflector film. A glass transition temperature of the printed colorless thermoplastic is above 25° C. and below glass transition temperatures of the colorless transparent material of the colorless transparent sheet and of the thermoplastic material of the thermoplastic reflector film.Type: GrantFiled: July 3, 2014Date of Patent: November 5, 2019Assignee: EVONIK ROEHM GmbHInventors: Herbert Groothues, Jann Schmidt, Wangelis Karampougioukis, Stephan Neumayer, Helmut Haering, Berthold Schoenig
-
Patent number: 9442237Abstract: The present invention relates to a method for producing light guide bodies and to their use in lighting units, for example for liquid crystal displays or for monitors. In particular, the present invention relates to a method for producing light guide bodies which have a thickness of at most 1 mm and contain at least 80 wt % of polymethyl methacrylate and no light-scattering constituents.Type: GrantFiled: November 11, 2011Date of Patent: September 13, 2016Assignee: Evonik Roehm GmbHInventors: Markus Parusel, Guenther Dickhaut, Thomas Pfaff, Helmut Haering, Michael Enders
-
Publication number: 20160170128Abstract: The present invention relates to novel light guide plates composed of a reflector film, of a transparent sheet and of, situated between these, reactive hot-melts or colourless thermoplastics applied by structured printing. No fixed direct connection exists here between the reflector film and the transparent sheet. Light guide plates, e.g. in backlight units (BLUs) or in light panels, have maximum uniformity of thickness and are composed of colourless transparent materials. Light is input here by way of example from LED or CCFL light sources by way of one or more edges of the light guide plate. On at least one surface of the light guide plate there is a structure which scatters the light. When a light beam is incident on the said structure, it is scattered at an angle smaller than the angle of total reflection, and is thus emitted from the plate. The light is emitted at both sides of the plate, and on one side there is therefore mostly a white reflector film which is not in optical contact with the plate.Type: ApplicationFiled: July 3, 2014Publication date: June 16, 2016Applicant: Evonik Roehm GmbHInventors: Herbert GROOTHUES, Jann SCHMIDT, Wangelis KARAMPOUGIOUKIS, Stephan NEUMAYER, Helmut HAERING, Berthold SCHOENIG
-
Publication number: 20130343088Abstract: The present invention relates to a method for producing light guide bodies and to their use in lighting units, for example for liquid crystal displays or for monitors. In particular, the present invention relates to a method for producing light guide bodies which have a thickness of at most 1 mm and contain at least 80 wt % of polymethyl methacrylate and no light-scattering constituents.Type: ApplicationFiled: November 11, 2011Publication date: December 26, 2013Applicant: Evonik Roehm GmbHInventors: Markus Parusel, Guenther Dickhaut, Thomas Pfaff, Helmut Haering, Michael Enders
-
Patent number: 8092731Abstract: The invention relates to a method for producing a thermoplastic plastic film. According to said method, the thermoplastic plastic is melted and transported in an extrusion installation comprising an extruder, an extrusion nozzle with a wide-slot delivery opening and a chill roll, which is fixed to a roll system and then leaves the delivery opening of the extrusion nozzle in the form of a flat melted web. Said melted web is then applied to the chill roll and is cooled. The invention is characterised in that it uses an extrusion installation, in which the distance between the delivery opening of the extrusion nozzle and the surface of the cooled roll does not vary by more than +/?50 ?m during the operating time. The invention also relates to a film of this type and to uses of the latter.Type: GrantFiled: November 24, 2005Date of Patent: January 10, 2012Assignee: Röhm GmbHInventors: Claude Guenanten, Christoph Steinfels, Herbert Groothues, Christoph Krohmer, Helmut Haering, Detlef Birth, Christopher Neuroth, Michael Meier-Kaiser, Walter Meon
-
Patent number: 7064894Abstract: A rear-projection screen that has at least one light-scattering polymethyl methacrylate layer in which is embedded spherical plastic particles; the previously described rear-project screen that has an additional plastic sheet that does not have embedded scattering beads; and a method of making a rear-projection screen.Type: GrantFiled: September 27, 2003Date of Patent: June 20, 2006Assignee: Roehm GmbH & Co. KGInventors: Markus Parusel, Jann Schmidt, Herbert Groothues, Wolfgang Scharnke, Hans Lorenz, Helmut Haering, Guenther Dickhaut-Bayer
-
Publication number: 20060121248Abstract: The invention relates to a process for the production of a plastics article with a microstructured surface via production of a composite composed of a backing layer composed of a thermoplastic or thermoelastic with one or more structure layers, characterized in that the structure layer(s) is/are composed of from 1 to 100% by weight of a polymethacrylate moulding composition which comprises from 80 to 100% by weight of free-radical-polymerized methyl methacrylate units and from 0 to 20% by weight of other comonomers capable of free-radical polymerization, and which has an average (weight-average) molar mass Mw of from 30 000 g/mol to 70 000 g/mol and, where appropriate, is present in a.Type: ApplicationFiled: April 21, 2004Publication date: June 8, 2006Applicant: ROEHM GMBH & CO. KGInventors: Hans Lorenz, Helmut Haering, Volker Mende, Christoph Krohmer, Werner Hoess
-
Publication number: 20060018015Abstract: Abstract of the Disclosure The present invention relates to rear-projection screens encompassing at least one light-scattering polymethyl methacrylate layer of thickness in the range from 0.05 to 4 mm comprising spherical particles whose size is in the range from 5 to 35 µm, at a concentration in the range from 2 to 60% by weight, based on the total weight of the light-scattering polymethyl methacrylate layer, the refractive index of the spherical plastics particles differing from that of the polymethyl methacrylate matrix by a value in the range from 0.02 to 0.2, wherein the concentration of the spherical plastics particles cP, the thickness of the light-scattering polymethyl methacrylate layer dS, and the size of the spherical plastics particles DP is selected in such a way that the ratio cP*dS/DP3 is in the range from 0.0015 to 0.015% by weight*mm/µm3 and the ratio of average surface roughness of the polymethyl methacrylate layer Ra to the size of the spherical plastics particles Dp is in the range from 0.Type: ApplicationFiled: May 21, 2004Publication date: January 26, 2006Applicant: Roehm GmbH @$amp; Co. KGInventors: Markus PARUSEL, Jann SCHMIDT, Herbert GROOTHUES, Wolfgang SCHARNKE, Hans LORENZ, Helmut HAERING, Guenther DICKHAUT-BAYER
-
Publication number: 20040257650Abstract: The present invention relates to rear-projection screens encompassing at least one light-scattering polymethyl methacrylate layer of thickness in the range from 0.05 to 4 mm comprising spherical particles whose size is in the range from 5 to 35 &mgr;m, at a concentration in the range from 2 to 60% by weight, based on the total weight of the light-scattering polymethyl methacrylate layer, the refractive index of the spherical plastics particles differing from that of the polymethyl methacrylate matrix by a value in the range from 0.02 to 0.2, wherein the concentration of the spherical plastics particles cp, the thickness of the light-scattering polymethyl methacrylate layer ds, and the size of the spherical plastics particles Dp is selected in such a way that the ratio cp*ds/Dp3 is in the range from 0.0015 to 0.015% by weight*mm/&mgr;m3 and the ratio of average surface roughness of the polymethyl methacrylate layer Ra to the size of the spherical plastics particles Dp is in the range from 0.05 to 0.4.Type: ApplicationFiled: May 21, 2004Publication date: December 23, 2004Inventors: Markus Parusel, Jann Schmidt, Herbert Groothues, Wolfgang Scharnke, Hans Lorenz, Helmut Haering, Guenther Dickhaut-Bayer