Patents Assigned to ROEHM GBMH & CO. KG
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Publication number: 20100075142Abstract: A process for the production of a translucent, IR-reflective plastic element, consisting entirely or at least in part of an impact-resistant, thermoplastic plastic, containing IR-reflective particles made of a lamellar-shaped carrier pigments coated with a metal oxide and the plastic element made therefrom.Type: ApplicationFiled: December 1, 2009Publication date: March 25, 2010Applicant: ROEHM GBMH & CO. KGInventors: Wolfgang Scharnke, Volker Mende
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Publication number: 20090229751Abstract: The adhesive bonding of matted PMMA with customary polymerization adhesives leads to very shiny bond seams, since the cured polymerization adhesives have a shiny surface. This emphasizes the very joining zones which it is intended that the viewer of bonded products should not perceive. The adhesive should therefore be matted after curing. The adhesive has for its basis a polymerization adhesive, preferably a (meth)acrylate-based adhesive. Two different kinds of silica are added as disperse powder to the polymerization adhesive, namely a silica powder having an average particle size of from 1 ?m to 10 ?m (matting agent) and a silica powder having an average particle size of more than 10 ?m up to 200 ?m (texturing agent).Type: ApplicationFiled: May 6, 2009Publication date: September 17, 2009Applicant: ROEHM GBMH & CO. KGInventors: Michael BLUMENSCHEIN, Carlo SCHUETZ, Xenia DANN, Roland SAETTLER
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Publication number: 20080158670Abstract: The present invention relates to rear-projection screens which have at least one scattering layer encompassing scattering particles and has at least one backing layer, characterized in that the halved-intensity angle of the scattering layer is greater than or equal to 15° and the halved-intensity angle of the backing layer is smaller than or equal to 6.5°, where the gloss R60° of the backing layer is smaller than or equal to 70.Type: ApplicationFiled: March 12, 2004Publication date: July 3, 2008Applicant: ROEHM GBMH & CO., KGInventors: Markus Parusel, Jann Schmidt, Herbert Groothues
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Publication number: 20070208107Abstract: The present invention relates to the use of polymeric microparticles in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: September 6, 2007Applicant: ROEHM GBMH & CO. KGInventors: Jan Hendrik Schattka, Thorsten Goldacker, Holger Kautz, Gerd Lohden
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Publication number: 20070208109Abstract: The present invention relates to the use of base-swellable polymeric formations in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: September 6, 2007Applicant: ROEHM GBMH & CO., KGInventors: Holger Kautz, Jan Hendrik Schattka, Gerd Loehden, Joachlm Venzmer
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Publication number: 20070196655Abstract: The present invention relates to the use of polymeric microparticles having porous and/or hydrophilic shells in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: August 23, 2007Applicant: ROEHM GBMH & CO. KGInventors: Jan Hendrik Schattka, Holger Kautz, Gerd Lohden
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Publication number: 20070197671Abstract: The present invention relates to the use of polymeric microparticles having thin shells in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: August 23, 2007Applicant: ROEHM GBMH & CO. KGInventors: Jan Hendrik Schattka, Holger Kautz, Gerd Lohden
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Publication number: 20070197690Abstract: The present invention relates to the use of polymeric microparticles whose shells contain additional monomers for the electrostatic and/or steric repulsions of the microparticles, in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: August 23, 2007Applicant: ROEHM GBMH & CO. KGInventors: Jan Hendrik Schattka, Holger Kautz, Gerd Loehden
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Publication number: 20070193478Abstract: The present invention relates to the use of polymeric microparticles having non-polar shells in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.Type: ApplicationFiled: March 24, 2006Publication date: August 23, 2007Applicant: ROEHM GBMH & CO. KGInventors: Jan Schattka, Holger Kautz, Gerd Lohden
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Publication number: 20070161744Abstract: The invention relates to a polymer solvent binding agent for pigments based on methylmethacrylate. The binding agent is a polymer made of methylmethacrylate and one or several additional radical polymerisierable compounds and is used in the form of a partially polymerised sirup.Type: ApplicationFiled: January 14, 2005Publication date: July 12, 2007Applicant: ROEHM GBMH & CO., KGInventors: Klaus Kabs, Frank Schafer, Hans Lichtenstein, Bernd Klossek
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Publication number: 20070149697Abstract: The invention relates to an elongation-increasing agent which can be processed in an amorphous and thermoplastic manner, is made of radically polymerized, vinylic monomers, and is used for producing synthetic threads from a melt-spinnable fiber-forming matrix polymer that is incompatible with the elongation-increasing agent. The invention is characterized in that the elongation-increasing agent is thermally stabilized by adding an antioxidant substance such that said elongation-increasing agent is provided with a maximum total monomer content of 6 percent by weight after being thermally loaded at 290° C. for 30 minutes in an argon atmosphere. The invention further relates to granular plastic materials containing said elongation-increasing agent and a method for the production thereof.Type: ApplicationFiled: April 6, 2004Publication date: June 28, 2007Applicant: ROEHM GBMH & CO. KGInventors: Alexander Klein, Helmut SCHWIND, Michael WICKER
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Publication number: 20070135560Abstract: The invention relates to mixtures for producing transparent plastics, comprising a) a prepolymer, produced from the compounds of formulae (1) and (II), wherein R1 independently represents hydrogen or a methyl group, R2 independently represents a linear or branched, aliphatic or cycloaliphatic group or a substituted or unsubstituted aromatic or heteroaromatic group and m and n independently represent an integer greater or equal 0, with m+1>0, and compounds of formula (III), alkyldithiols or polythiols, preferably HS—R3—SH (III), wherein R3 is equal or different from R2 and can have the meaning indicated in R2, and b) at least one radically polymerizable monomer (A) having at least two methacrylate groups and c) aromatic vinyl compounds, such as styrene and d) optionally a radically polymerizable monomer having at least two terminal olefinic groups that have different reactivity, and/or e) optionally at least one monomer (B) from the group of methacrylates, preferably 2-hydroxyethylmethacrylate.Type: ApplicationFiled: January 19, 2005Publication date: June 14, 2007Applicant: ROEHM GBMH & CO. KGInventors: Bardo Schmitt, Patrik Hartmann
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Publication number: 20070106044Abstract: The invention relates to a method for producing glycerol carbonate methacrylate in the presence of metal-chelate catalysts of the metal ion-1,3-diketonate type.Type: ApplicationFiled: August 24, 2004Publication date: May 10, 2007Applicant: ROEHM GBMH & CO. KGInventors: Bardo Schmitt, Maik Caspari
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Publication number: 20070098884Abstract: A process is described for producing mouldings from plastics by coating a moulding on one or more sides with a lacquer system, the lacquer system being composed of a binder or a binder mixture, optionally a solvent or solvent mixture, optionally other additives usual in lacquer systems and a thickener, and use can be made here of polymeric thickeners at from 0 to 20% content and oligomeric thickeners at from 0 to 40% content, in each case based on dry film (components a, c, d, e), from 5 to 500 parts by weight, based on a), of an electrically conductive metal oxide powder with a median primary particle size of from 1 to 80 nm and a percentage degree of aggregation of from 0.01 to 99%, from 5 to 500 parts by weight, based on a), of inert nanoparticles coated in a manner known per se and the lacquer cured.Type: ApplicationFiled: August 6, 2004Publication date: May 3, 2007Applicant: Roehm GbmH & Co., KGInventors: Thomas Hasskerl, Patrick Becker, Rolf Neeb, Ghirmay Seyoum
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Publication number: 20070042045Abstract: The invention relates to a multilayer pharmaceutical form for controlled active ingredient release, essentially comprising a) optionally a neutral core (nonpareilles), b) an inner controlling layer comprising a substance having a modulating effect, which is embedded in a matrix which influences the delivery of the modulatory substance and which comprises pharmaceutically usable polymers, waxes, resins and/or proteins, and where appropriate an active ingredient, c) an active ingredient layer comprising an active pharmaceutical ingredient and, where appropriate, a substance having a modulating effect, d) an outer controlling layer comprising at least 60% by weight of one or a mixture of a plurality of (meth)acrylate copolymers composed of 98 to 85 C1 to C4 alkyl esters of (meth)acrylic acid and 2 to 15% by weight of methacrylate monomers with a quaternary ammonium group in the alkyl radical, and, where appropriate, further water-insoluble pharmaceutically usable polymers, where the layers may additionally andType: ApplicationFiled: September 15, 2004Publication date: February 22, 2007Applicant: ROEHM GBMH & CO. KGInventors: Rosario Lizio, Hans-Ulrich Petereit, Manfred Assmus, Herna Ravishankar
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Publication number: 20070027282Abstract: The invention relates to a method for producing polymethyl methacrylate (PMMA) blocks with thicknesses greater than or equal to 200 mm.Type: ApplicationFiled: September 15, 2004Publication date: February 1, 2007Applicant: Roehm GBMH & Co. KGInventors: Klaus Kabs, Frank Schaefer, Karl-Heinz Jakob, Bernd Klossek
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Publication number: 20070009712Abstract: The invention relates to the configuration and production of force-introduction points in core composites using reinforcement elements that traverse the thickness of said core composite. The reinforcement elements that traverse the thickness of the core composite are provided in the vicinity of the force-introduction points. The reinforcement elements (e.g. stitched fibres) are preferably incorporated by means of a stitching process and a stitching needle. After the stitching process, the cover layers (a and c), which preferably consist of textile semi-finished products and the hole produced by the passage of the needle, together with the reinforcement element are impregnated with a liquid polymer matrix, creating the material union of the core material and the cover layers.Type: ApplicationFiled: September 8, 2004Publication date: January 11, 2007Applicant: Roehm Gbmh & Co. KGInventor: Matthias Roth
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Publication number: 20060293451Abstract: The invention relates to a dual component system with a controllable pot life. Said system can be hardened by a redox initiator system and comprises an emulsion polymer or a plurality of emulsion polymers and an ethylenically unsaturated monomer or a monomer mixture made from ethylenically unsaturated monomers. The emulsion polymer as well as the monomer or the monomer mixture can contain one of the components of a redox initiator system. Pot life is controlled by absorption of the redox initiator system on the polymer (A and B).Type: ApplicationFiled: May 28, 2004Publication date: December 28, 2006Applicant: ROEHM GBMH & CO. KGInventors: Gerold Schmitt, Thomas Sufke, Volker Kerscher
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Publication number: 20060287431Abstract: The invention relates to polymer networks comprising dimethacrylates of formula CH2?CCH3COO—X—O—COCCH3?CH2 and thiols as main components, X representing a bifunctional radical. Said dimethacrylate/modifier networks represent materials whose properties are determined essentially by the properties of the X group as a result of the very short polymethacrylate blocks used. The networks are very soft and flexible or highly solid, tough, and solvent-resistant depending on the type of the X group that is used.Type: ApplicationFiled: September 20, 2004Publication date: December 21, 2006Applicant: ROEHM GBMH & CO. KGInventor: Werner Siol
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Publication number: 20060258830Abstract: The invention relates to a method for producing glycerol monomethacrylate (GMMA).Type: ApplicationFiled: July 22, 2004Publication date: November 16, 2006Applicant: ROEHM GBMH & CO. KGInventor: Dirk Broell