Patents by Inventor Andreas Greiner

Andreas Greiner 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: 8871881
    Abstract: The invention at hand concerns hydrophobic polymer surfaces, in particular superhydrophobic polymer surfaces, comprising at least one homo- or copolymer, which comprises at least one side chain with at least one fluoro-substituted aryl group. Furthermore, the invention at hand concerns a method for the production of polymer surfaces of this type, their use and polymers of the general formula I: wherein n is an integer between 10 and 4,500, preferably between 20 and 2,200 and particularly preferably between 100 and 670.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 28, 2014
    Assignee: Philipps-Universität Marburg
    Inventors: Andreas Greiner, Seema Agarwal, Michael Bognitzki, Sven Horst
  • Patent number: 8829155
    Abstract: The present invention relates to a poly(p-xylylene)-based polymer having a low dielectric constant suitable for low loss dielectrics (LLD), and an insulating material, a printed circuit board and a functional element using the same. More particularly, the poly(p-xylylene)-based polymer includes at least one repeat unit expressed by the following formula (1): wherein, at least one of R1, R2, R7 and R8 is independently substituted or unsubstituted C6-C20 aryl; the rest of R1 to R8 are each and independently H, substituted or unsubstituted linear C1-C3 alkyl, or substituted or unsubstituted branched C1-C3 alkyl; and n is an integer of 400 to 900.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: September 9, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-Choon Cho, Andreas Greiner, Do-Yeung Yoon, Jun-Rok Oh, Keun-Yong Lee, Moon-Soo Park
  • Publication number: 20130214441
    Abstract: The present invention provides aqueous stable suspensions of biodegradable diblock copolyesters and a method for their production. The diblock copolyesters comprise one block of an aliphatic polyester and one block of a polyethylene oxide. Suspensions according to the present invention are suitable to be used as biodegradable viscosity modifiers, compatibilizers in blends, as glues, varnishes, paper additives, flame retardants, impact modifiers and hazers of transparent plastics, and for the production of biodegradable sheets, films, fibers, plates, vessels, tubes and capillaries for transport or packaging purposes. Furthermore, the suspensions according to the present invention are suitable to be used for the production of nano- and microfibers and nano- and microfiber nonwovens with non-oriented or oriented fibers by means of electrospinning.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 22, 2013
    Applicant: PHILLIPS-UNIVERSITÄT MARBURG
    Inventors: Andreas Greiner, Seema Agarwal, Kathrin Bubel
  • Patent number: 8495969
    Abstract: Apparatus and method for producing electrically conducting nanostructures by means of electrospinning, the apparatus having at least a substrate holder (1), a spinning capillary (2), connected to a reservoir (3) for a spinning liquid (4) and to an electrical voltage supply (5), an adjustable movement unit (6, 6?) for moving the spinning capillary (2) and/or the substrate holder (1) relative to one another, an optical measuring device (7) for monitoring the spinning procedure at the outlet of the spinning capillary (2), and a computer unit (8) for controlling the drive of the spinning capillary (2) relative to the substrate holder (1) in accordance with the spinning procedure.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: July 30, 2013
    Inventors: Stefan Bahnmüller, Andreas Greiner, Joachim H. Wendorff, Roland Dersch, Jacob Belardi, Max Von Bistram, Stefanie Eiden, Stephan Michael Meier
  • Patent number: 8431064
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibers, polymer tubes or hollow fibers for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 30, 2013
    Assignees: Phillips-Universitat Marburg, Justus-Liebig Universitat Giessen
    Inventors: Andreas Greiner, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch
  • Patent number: 8378054
    Abstract: A process for preparing polyaryl ethers in which a polycondensation of the monomer building blocks is carried out using microwave irradiation leads to thermoplastic molding compositions having improved color properties.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: February 19, 2013
    Assignee: BASF SE
    Inventors: Martin Weber, Volker Warzelhan, Faissal-Ali El-Toufaili, Andreas Greiner, Heiner Stange, Seema Agrarwal
  • Publication number: 20120302703
    Abstract: The present invention provides a method to produce metal-containing nanoparticles enveloped with polymers, as well as particles obtainable therefrom. In the method according to the present invention, at least one anionic polymerizable monomer is polymerized in the presence of an anionic macroinitiator at room temperature. Subsequently, an aliphatic or aromatic sulfide is firstly added, followed by a solution of at least one organosoluble metal salt in an aprotic organic solvent and finally a homogeneous reducing agent. The metal cation is hereby reduced to the metal. Metal-containing nanoparticles are formed which are covalently bonded to the growing anionic polymerizates. The metal salts are preferably salts of silver, copper, gold, tin, lead, chrome or zinc, or mixtures thereof.
    Type: Application
    Filed: February 1, 2010
    Publication date: November 29, 2012
    Applicant: Philipps-Universitaet Marburg
    Inventors: Andreas Greiner, Seema Agarwal, Julia Schmidt, Stefan Bokern
  • Patent number: 8304498
    Abstract: The present invention refers to medical devices comprising a modified polyamide or to modified polyamides or modified polyamide elastomers with the polyamides having high flexibility and high stress resistance, especially tensile strength or tear resistance, in addition to the good physical characteristics of the known polyamide elastomers.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 6, 2012
    Assignee: Abbott Laboratories Vascular Enterprises Limited
    Inventors: Günter Lorenz, Tina Schackmann, Andreas Greiner
  • Publication number: 20120270942
    Abstract: Disclosed herein is a device for the application of agricultural active agents, wherein the device is suitable to be brought to the site of action in a manner temporally and spatially separated from the production process, and comprises a dispenser and non-water-soluble nanofibers and/or mesofibers charged with agricultural active agents. The polymers from which the nanofibers and/or mesofibers are made are preferably biodegradable. The agricultural active agents are selected from fungicides, herbicides, batericides, plant growth regulators and plant nutrients. These are preferably pheromones, kairomones and signaling substances. Furthermore, a method for the production of this device is disclosed, wherein the nanofibers and/or mesofibers charged with active agents are produced via electrospinning. The device is suitable to be used to bring agricultural active agents to the site of action in a manner temporally and spatially separated from the production of this device.
    Type: Application
    Filed: October 21, 2010
    Publication date: October 25, 2012
    Applicants: Justus-Liebig-Universitat Giessen, Baden-Wurttemberg Versuchs- und Forschungsanstalt fur Weinbau und Weinbehandlung, Philipps-Universitat Marburg
    Inventors: Andreas Greiner, Joachim H. Wendorff, Seema Agarwall, Christoph Hellmann, Michael Breuer, Günter Leithold, Hans E. Hummel, Detlef Hein
  • Publication number: 20120259064
    Abstract: The invention provides new polymeric or oligomeric active agents with a biocidal effect. Such particularly advantageous polymeric or oligomeric active agents with a biocidal effect are obtainable via polycondensation of a guanidine acid addition salt with an amine mixture comprising at least one diamine and/or one triamine, wherein at least one amine is selected from the group comprising i) diamine, comprising at least one cycloaliphatic residue, and ii) dialkylenetriamine. At least one amine is hereby preferably selected from 4,4?-methylenebis(cyclohexylamine) and diethylenetriamine. Furthermore, it is favorable if the guanidine acid addition salt is guanidinehydrochloride.
    Type: Application
    Filed: November 12, 2010
    Publication date: October 11, 2012
    Inventors: Andreas Greiner, Seema Agarwal, Claudia Mattheis
  • Patent number: 8267842
    Abstract: The present invention relates to an ergometer which is particularly suitable for examining a test person or patient in a magnetic resonance apparatus. It comprises at least one drive means which is provided essentially movably and at least one pneumatic piston/cylinder array. The drive means is provided at the piston or the cylinder and pneumatically applied pressure between the piston and the cylinder constitutes a resistance or force to be overcome by the test person or patient by operating the drive means. The resistance or the force necessary to set the drive means in motion, particularly during operation, can be controlled and/or regulated and the piston and the cylinder are sized such that an air cushion is formed between them at least during operation or when they move relative to each other.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: September 18, 2012
    Assignee: Ergospect GmbH
    Inventors: Michael Schocke, Andreas Greiner
  • Publication number: 20120107900
    Abstract: The present invention provides electrospun polymer fibers comprising bacteria-containing hydrogel particles. Bacteria-containing hydrogel particles are produced by crosslinking water-soluble polymers to form hydrogels and mixing them with a bacteria suspension. The crosslinking is suitable to be carried out either chemically before the addition of the bacteria suspension or physically before or after this addition. Subsequently, these hydrogel particles are electrospun together with an electrospinnable polymer solution to form fibers or fibre non-wovens. The bacteria which are located in these hydrogel particles or in the electrospun polymer fibers comprising these particles, respectively, are capable of surviving for a long period (several months) without the supply of water or cell-culture media and are simultaneously protected against the effect of solvents, for example alcohols, acetone, chlorinated hydrocarbons, ethers and toluene, which would otherwise kill said bacteria.
    Type: Application
    Filed: December 18, 2009
    Publication date: May 3, 2012
    Applicant: Philipps-Universitat Marburg
    Inventors: Andreas Greiner, Seema Agarwal, Marco Gensheimer
  • Publication number: 20110300383
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 8, 2011
    Applicants: Justus-Liebig Universitat Giessen, Philipps-Universitat Marburg
    Inventors: Andreas GREINER, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch
  • Publication number: 20110300251
    Abstract: Carriers for the production and targeted and/or delayed release, particularly of agricultural active substances, as well as a method for the output and a device for the production of such carriers in a loaded or unloaded state are proposed. The method and the device use the technology of electrospinning.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 8, 2011
    Applicants: Justus-Liebig Universitat Giessen, Philipps-Universitat Marburg
    Inventors: Andreas GREINER, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch
  • Publication number: 20110293846
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicants: Justus-Liebig Universitat Giessen, Philipps-Universitat Marburg
    Inventors: Andreas GREINER, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch
  • Patent number: 8017061
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Grant
    Filed: May 30, 2005
    Date of Patent: September 13, 2011
    Assignees: Philipps-Universitat Marburg, Justus-Liebig Universitat Giessen
    Inventors: Andreas Greiner, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch
  • Patent number: 7994372
    Abstract: Fluorinated paracyclophane compounds represented by the formula: where least one of R1 and R2 comprises a fluorinated moiety is disclosed. These compounds can be utilized as precursor dimer compounds to produce polymeric coatings comprising copolymers of trifluorinated paraxylylene, including flexible fluorinated paraxylylene coatings.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 9, 2011
    Assignee: Specialty Coating Systems, Inc.
    Inventors: Rakesh Kumar, Phillip Hanefeld, Sven Horst, Markus Meise, Andreas Greiner, Michael Bognitzki
  • Patent number: 7981354
    Abstract: The invention relates to a method for producing metal oxide fibers with diameters on the micro- and nanometric scale by using electrospinning. At least one polymer is dissolved in a solvent, a metal salt is dissolved in this polymer solution, and this mixture is subsequently electrospun into fibers. Breaking down the polymer renders metal oxide fibers accessible that can be optionally reduced into the corresponding metal fibers.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 19, 2011
    Assignee: Philipps-Universitat Marburg
    Inventors: Joachim H. Wendorff, Andreas Greiner, Michael Bognitzki, Martin Graeser
  • Publication number: 20110160426
    Abstract: The invention at hand provides hydrolytically degradable ionic copolymers. These ionic copolymerizates are composed of one cyclic ketene acetal A, one anionic or cationic methacrylic acid derivative B, selected from 2-methyl-methacrylate, [2-(2-methyl-1-methylene-allyloxy)]ethanesulfonate, [2-(2-methyl-1-methylene-allyloxy)ethyl]phosphonate or a quaternary amine of the N,N-dimethylaminoethylmethacrylic acid (DMAEMA) and, optionally, a neutral methacrylic acid derivative C. The hydrolytically degradable anionic copolymers according to the present invention are produced by polymerizing the components A, B and C in the presence of a radical initiator under inert gas atmosphere and subsequent purification. All copolymers according to the present invention are hydrolytically degradable. Copolymers comprising a maximum of 40 mol-% of ester groups in the backbone are additionally biodegradable, wherein in the case of cationic copolymers a maximum of 20 mol-% of quaternized DMAEMA is allowed to be available.
    Type: Application
    Filed: April 9, 2009
    Publication date: June 30, 2011
    Applicant: PHILIPPS-UNIVERSITAT MARBURG
    Inventors: Andreas Greiner, Seema Agarwal, Thomas Kissel, Liqun Ren
  • Publication number: 20110082263
    Abstract: The present invention refers to medical devices comprising a modified polyamide or to modified polyamides or modified polyamide elastomers with the polyamides having high flexibility and high stress resistance, especially tensile strength or tear resistance, in addition to the good physical characteristics of the known polyamide elastomers.
    Type: Application
    Filed: December 28, 2007
    Publication date: April 7, 2011
    Applicant: ABBOTT LABORATORIES VASCULAR ENTERPRISES LIMITED
    Inventors: Günter Lorenz, Tina Schackmann, Andreas Greiner