Patents Assigned to Rohm GmbH
  • Patent number: 10172807
    Abstract: The invention refers to a nanoparticle with a diameter which is the maximum in the nanoparticle size distribution, in the range of 10-300 nm, comprising a) a calcium phosphate nanoparticle core a), b) an active ingredient coating b) on the calcium phosphate nanoparticle core a), c) a lactic acid polymer coating c) on the active ingredient coating b), d) a cationic polymer coating d) on the lactic acid polymer coating c) selected from the group of polyethylene-imines, chitosan and human lactoferrin-derived peptides with a length of 14 to 30 amino acids.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 8, 2019
    Assignee: Evonik Röhm GmbH
    Inventors: Rosario Lizio, Silko Grimm, Hans-Ulrich Petereit, Matthias Epple, Gregor Doerdelmann
  • Publication number: 20180369974
    Abstract: The invention relates to a machine tool apparatus having a spindle (2), with a base flange (4) provided for attachment to the spindle (2) as part of a clamping tool quick-change tooling system (1), which further comprises an exchangeable flange (5), which is connectable to the chucking tool (3). Line sections (46) for data and/or energy transfer are arranged in the spindle (2), the base flange (4), the exchangeable flange (5) and the chucking tool (6), whereby coupling members (47) for connecting the line sections (46) to form a single line (FIG. 11) are provided on adjacent components in the transfer chain.
    Type: Application
    Filed: November 21, 2016
    Publication date: December 27, 2018
    Applicant: RÖHM GMBH
    Inventor: Stefan KEMPTER
  • Patent number: 10155878
    Abstract: The present invention relates to aqueous binders and to heat-sealing lacquers produced therefrom for heat-sealable coatings which adhere on aluminum without use of any primer, permit good sealability of the coated aluminum foil with respect to PS and/or PVC, and moreover feature good blocking resistance even at temperatures above 40° C.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 18, 2018
    Assignee: Evonik Röhm GmbH
    Inventors: Florian Hermes, Dominik Sturm, Christian Golditz, Michael Wicke, Herbert Jung, Juergen Hartmann, Bruno Keller
  • Patent number: 10131097
    Abstract: The present invention relates to a novel process for the production of novel fiber-reinforced profile materials comprising a rigid foam core, in particular a PMI foam core. In particular, the present invention relates to a novel process which can be carried out in two variants, a short Pul-press process and a Pul-shape process. One step here produces a fiber-reinforced profile material and simultaneously inserts the rigid foam core into same. The same step moreover ensures very good binding of the rigid foam core to the fiber-reinforced profile material.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 20, 2018
    Assignee: Evonik Röhm GmbH
    Inventors: Sebastian Buehler, Karl-Heinz Semlitsch, Sivakumara K. Krishnamoorthy
  • Patent number: 10125077
    Abstract: The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a Mannich reaction and oxidized in a second stage to methacrylic acid. More particularly, the present invention relates to the reduction in the amounts of catalyst to be used in the first stage, especially to the reduction in the amounts of acid to be used here, by virtue of the additional installation of recycling streams suitable for the purpose.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: November 13, 2018
    Assignee: Evonik Röhm GmbH
    Inventors: Steffen Krill, Rudolf Burghardt, Melanie Raczek, Torsten Balduf
  • Publication number: 20180171563
    Abstract: A noise protection element for the insulation and absorption of sound emissions from vehicles, more particularly road vehicles and railway vehicles and also aeroplanes moving along a traffic route. The noise protection element includes a plate having a transparent material, where a noise-absorbing material has been applied on at least one of the two surfaces of the plate, where the noise-absorbing material is a closed-pore polymer foam.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 21, 2018
    Applicant: Evonik Röhm GmbH
    Inventors: Gerd JONAS, Peter Seelmann
  • Patent number: 9981388
    Abstract: A gripper is described as including two lateral flanks that are directly or indirectly connected to each other at one end, generating a space between them containing an actuator whose lateral boundaries have at least one opening accessible from the outside. At least one reinforcement rib is allocated to at least one of the lateral flanks. A method for manufacturing the gripper is also described.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 29, 2018
    Assignee: Röhm GmbH
    Inventor: Eduard Schweigert
  • Publication number: 20170275227
    Abstract: The present invention relates to an optimized process for the preparation of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for the preparation of methacrylic acid, methyl methacrylate or even active ingredients, fragrances or flavourings. In particular the present invention relates to the optimization of the process parameters by which, inter alia, a reduction of the content of harmful dimeric methacrolein in the end product may be achieved.
    Type: Application
    Filed: September 16, 2015
    Publication date: September 28, 2017
    Applicant: Evonik Röhm GmbH
    Inventors: Rudolf BURGHARDT, Steffen KRILL, Torsten BALDUF, Gerhard KOELBL, Martin KOESTNER, Eduard RUNDAL
  • Publication number: 20170260433
    Abstract: The present invention comprises a single-component binder for heat-sealing applications which can be used for the sealing of polyester foils, in particular of polyethylene terephthalate foils (PET foils) with respect to containers made of polystyrene, of PVC, and of polyester. These polyesters can in particular be polyethylene terephthalate (PET) or polylactic acid (PLA). The binders here feature not only good seal seam strengths but also in particular good transparency and excellent application properties. A substantive aspect of the invention is that the sealing can be achieved without addition of adhesion promoters, in particular without addition of adhesion promoters based on polyvinyl chloride (PVC) or on polyester, and that barrier properties and sealing properties achieved in respect of containers made of PS and of PET are nevertheless at least comparable with, and sometimes better than, those achieved with heat-sealing systems already marketed.
    Type: Application
    Filed: May 7, 2015
    Publication date: September 14, 2017
    Applicant: Evonik Röhm GmbH
    Inventors: André HENNIG, Thomas ARNOLD, Michael WICKE, Jürgen HARTMANN, Bruno KELLER, Günter SCHMITT, Michael WALDHAUS
  • Patent number: 9757343
    Abstract: The invention relates to a pH-dependent controlled release pharmaceutical composition, comprising a core, and an opioid, wherein the core is coated at least by one coating layer, controlling the release of the pharmaceutical composition, wherein the coating layer comprises a polymer mixture of i) 40-95% by weight, based on dry weight of the polymer mixture, of at least one water insoluble essentially neutral vinyl polymer, and ii) 5-60% by weight, based on dry weight of the polymer mixture, of at least one anionic polymer or copolymer, which is insoluble in a buffered medium below pH 4.0 and soluble at least in the range from pH 7.0 to pH 8.0, characterized in that the coating layer further comprises 110 to 250% by weight of a non-porous inert lubricant, 1 to 35% by weight of a neutral cellulosic compound and 1 to 25% by weight of an emulsifier, each calculated on dry weight of the polymer mixture.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 12, 2017
    Assignee: EVONIK RÖHM GmbH
    Inventors: Hans Bär, Thomas Fürst, Gerhard Renner, Michael Gottschalk
  • Patent number: 9744674
    Abstract: A gripper is described as including two lateral flanks that are directly or indirectly connected to each other at one end, providing a space between them including an actuator, the lateral boundaries of which space have at least one opening accessible from the outside. At least one louver runs across the opening and divides the opening such that the partial surfaces resulting from the louver limit or prevent accessibility to the opening. A method for manufacturing the gripper is also described.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 29, 2017
    Assignee: Röhm GmbH
    Inventors: Eduard Schweigert, Jens Gräβle
  • Patent number: 9670295
    Abstract: A block-copolymer containing at least two different blocks wherein block A contains (meth)acrylate monomers the copolymer having a glass transition temperature of less than 15° C., block B contains (meth)acrylate monomers the copolymer having a glass transition temperature of more than 25° C. being free of thio-containing substances in the polymer chain, characterized in that one block contains at least one photoinitiator chemically bound to the chain.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 6, 2017
    Assignees: Henkel AG & Co. KGaA, Evonik Röhm GmbH
    Inventors: Peter D. Palasz, Maria Xenidou, Kerstin van Wijk, Simon Krause, Stefan Hilf
  • Patent number: 9668977
    Abstract: The invention relates to a coating composition suitable for the coating of pharmaceutical or nutraceutical dosage form, comprising a core comprising one or more pharmaceutical or nutraceutical active ingredients, wherein the coating composition is comprising at least 20% by weight of an enteric core/shell polymer composition derived from an emulsion polymerization process, wherein the core of the core/shell polymer composition is formed by a water-insoluble, cross-linked polymer or copolymer and the shell of the core/shell polymer composition is formed by an anionic polymer or copolymer.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 6, 2017
    Assignee: Evonik Röhm GmbH
    Inventors: Jan Hendrik Schattka, Christian Meier, Florian Hermes
  • Patent number: 9637574
    Abstract: The present invention relates to a process for preparing alkyl methacrylates and their conversion products which can be used in a multitude of chemical synthesis processes which can lead to a wide variety of different further processing products, and to an apparatus for performing this process.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 2, 2017
    Assignee: Evonik Röhm GmbH
    Inventors: Udo Gropp, Robert Weber, Thomas Schaefer, Andreas Perl, Rudolf Sing, Thomas Mertz
  • Patent number: 9611204
    Abstract: The present invention concerns regulating the water content in a process for production of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for production of methacrylic acid, methyl methacrylate or else of active, aroma or flavor chemicals. The present invention is particularly concerned with regulating the water content in a process for production of methacrolein from formaldehyde and propionaldehyde via a Mannich condensation.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 4, 2017
    Assignee: EVONIK RÖHM GmbH
    Inventors: Rudolf Burghardt, Frederik Gluth, Gerhard Koelbl, Steffen Krill, Torsten Balduf
  • Patent number: 9597293
    Abstract: The present invention provides a solid dosage form including an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein the inner coating includes a partially neutralized anionic polymeric material, and at least a carboxylic acid having 2 to 16 carbon atoms the salts thereof or mixtures of the acid and its salt; wherein the outer coating includes an anionic polymeric material which is less or not at all neutralized than the material of the inner coating.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 21, 2017
    Assignee: EVONIK RÖHM GmbH
    Inventors: Fang Liu, Abdul W. Basit, Rosario Lizio, Hans-Ulrich Petereit, Christian Meier, Michael Damm
  • Patent number: 9567444
    Abstract: The present invention relates to a process for producing transparent polymeric films or plastics moldings of particularly high chemical resistance, having more particularly a very good resistance towards oil-in-water and water-in-oil emulsions, and of high optical quality.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: February 14, 2017
    Assignee: Evonik Röhm GmbH
    Inventors: Achim Neuhaeuser, Guenther Dickhaut, Ralf Richter, Jonas Scherble, Wangelis Karampougioukis
  • Patent number: 9433969
    Abstract: A 3D extrusion print process for producing multicolored three-dimensional objects is provided. The process produces mechanically stable, multicolored 3D objects with good color definition. The process according to the invention is based on coating, upstream of the printing head, of the polymer strand used for producing the actual object, and on fixing of the coating upstream of entry of the polymer strand into the printing head. Downstream of the extrusion process in the printing head, the coating remains predominantly at the surface of the extruded strand.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: September 6, 2016
    Assignee: EVONIK RÖHM GmbH
    Inventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Patent number: 9399335
    Abstract: Provided is an adhesive composition suitable for producing a laminate. The composition contains specified amounts of (a) polyisobutyl methacrylate, isobutyl methacrylate or a mixture thereof, (b) butyl acrylate, (c) polybutyl acrylate, (d) a (meth)acrylate compound and (e) a silicon compound. These components may be in polymerizable form, in polymerized form or in a combination of polymerizable form and polymerized form. The amounts of components (a) to (e) total 100 wt. % and the amount of (b) and (c) represents 30 to 90 wt. %, based on the sum total of components (a) to (e). The composition may optionally further contain from 0.1 to 6 wt. %, based on the total weight of the adhesive composition, of additives different from components (a) to (e) described above.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: July 26, 2016
    Assignee: EVONIK RÖHM GmbH
    Inventors: Thomas Hasskerl, Klaus Koralewski, Sabine Schwarz-Barac, Roger Recktenwald, Werner Hoess, Florian Band
  • Publication number: 20160208057
    Abstract: The invention refers to a Process for preparing a bio-resorbable polyester the form of a powder with a bulk density of 0.3 g/ml or more, a tapped density of 0.4 g/ml or more and a specific surface area of 2.0 m2/g or less comprising the steps a. dissolving a bio-resorbable polyester in a first solvent to form a polymer solution, b. contacting the polymer solution with a second solvent which is a non-solvent for the bioresorbable polyester and which is mainly water to result the precipitation of the bio-resorbable polyester in the form of a wet polymer mass, c. pre-drying the wet polymer mass at a temperature below the TgO of the bio-resorbable polyester, d. comminuting the pre-dried polymer mass to polymer particles with a size below 10 mm, e. drying the comminuted polymer particles below the TgO of the bio-resorbable polyester to a residual water content of 1% or less by weight/weight, f.
    Type: Application
    Filed: August 29, 2013
    Publication date: July 21, 2016
    Applicant: EVONIK RÖHM GMBH
    Inventors: Hans BÄER, Julian BLAESY, Felix HOFMANN, Silke SCHMINKE, Isabel WAHL