Patents by Inventor Andreas Daiss

Andreas Daiss 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: 10150091
    Abstract: An apparatus for addition of droplets of a monomer solution for production of poly(meth)acrylate to a reactor for droplet polymerization, comprising at least one channel or a dropletizer head having, at its base, holes through which the solution is dropletized into the reactor, at least one of the following features being fulfilled: (a) the ratio of the area covered by the channels or the dropletizer head in the reactor relative to the area which is defined by the circumference of a line along the outermost holes is less than 50%, (b) the number of holes relative to the area which is defined by the circumference of a line along the outermost holes is within a range from 100 to 1000 holes/m2.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: December 11, 2018
    Assignee: BASF SE
    Inventors: Andreas Daiss, Robert Bayer, Rudolf Schliwa, Jürgen Freiberg, Karl J. Possemiers, Marco Krüger
  • Patent number: 9963521
    Abstract: Preparation of isobutene homopolymers having a weight-average molecular weight of 75 000 to 10 000 000 by polymerization of isobutene, by (a) performing the polymerization at ?80° C. to ?190° C., (b) using, as an inert solvent, optionally halogenated C1 to C5 hydrocarbons, (c) using, as a polymerization catalyst, a Lewis acid complex, (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound comprising one oxygen atom and no abstractable proton, and (e) performing the polymerization in the presence of at least one chain length regulator comprising one tertiary olefinic carbon atom.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: May 8, 2018
    Assignee: BASF SE
    Inventors: Thomas Wettling, Stefan Hirsch, Markus Brym, Markus Weis, Rosa Corberan Roc, Klaus Muehlbach, Robert Haschick, Andreas Daiss, Marco-Christian Volland
  • Patent number: 9925511
    Abstract: An apparatus for introducing droplets of a monomer solution for production of poly(meth)acrylate into a reactor for droplet polymerization, comprising at least one channel or a dropletizer head, the channel or the dropletizer head being sealed at its base by a dropletizer plate, the dropletizer plate having holes through which the monomer solution is introduced into the reactor, and the dropletizer plate being configured such that holes that, in an axially symmetric dropletizer plate or in an annular dropletizer plate or in one configured as a ring segment, are not on a center line of the dropletizer plate or, in the case of a circular dropletizer plate, are not at the center of the dropletizer plate are aligned such that monomer solution is introduced through the holes into the reactor at an angle to the vertical, and the holes in the case of a radial alignment of axially symmetric dropletizer plates being aligned such that the angle at which the monomer solution is introduced into the reactor decreases in t
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: March 27, 2018
    Assignee: BASF SE
    Inventors: Andreas Daiss, Robert Bayer, Rudolf Schliwa, Jürgen Freiberg, Karl J. Possemiers, Marco Krüger
  • Publication number: 20170246607
    Abstract: An apparatus for production of pulverulent poly(meth)acrylate, comprising a reactor or droplet polymerization, having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate, having holes through which the solution is dropletized, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the periphery of the reactor and a fluidized bed. The outermost holes through which the solution is dropletized are positioned such that a droplet falling vertically downward falls into the fluidized bed and the hydraulic diameter at the level of the midpoint between the apparatus for dropletization and the gas withdrawal point is at least 10% greater than the hydraulic diameter of the fluidized bed.
    Type: Application
    Filed: June 10, 2015
    Publication date: August 31, 2017
    Applicant: BASF SE
    Inventors: Andreas Daiss, Robert Bayer, Rudolf Schliwa, Jürgen Freiberg, Karl J. Possemiers, Marco Krüger
  • Publication number: 20170232418
    Abstract: An apparatus for introducing droplets of a monomer solution for production of poly(meth)acrylate into a reactor for droplet polymerization, comprising at least one channel or a dropletizer head, the channel or the dropletizer head being sealed at its base by a dropletizer plate, the dropletizer plate having holes through which the monomer solution is introduced into the reactor, and the dropletizer plate being configured such that holes that, in an axially symmetric dropletizer plate or in an annular dropletizer plate or in one configured as a ring segment, are not on a center line of the dropletizer plate or, in the case of a circular dropletizer plate, are not at the center of the dropletizer plate are aligned such that monomer solution is introduced through the holes into the reactor at an angle to the vertical, and the holes in the case of a radial alignment of axially symmetric dropletizer plates being aligned such that the angle at which the monomer solution is introduced into the reactor decreases in t
    Type: Application
    Filed: June 23, 2015
    Publication date: August 17, 2017
    Applicant: BASF SE
    Inventors: Andreas Daiss, Robert Bayer, Rudolf Schliwa, Jürgen Freiberg, Karl J. Possemiers, Marco Krüger
  • Publication number: 20170225138
    Abstract: An apparatus for addition of droplets of a monomer solution for production of poly(meth)acrylate to a reactor for droplet polymerization, comprising at least one channel or a dropletizer head having, at its base, holes through which the solution is dropletized into the reactor, at least one of the following features being fulfilled: (a) the ratio of the area covered by the channels or the dropletizer head in the reactor relative to the area which is defined by the circumference of a line along the outermost holes is less than 50%, (b) the number of holes relative to the area which is defined by the circumference of a line along the outermost holes is within a range from 100 to 1000 holes/m2.
    Type: Application
    Filed: June 16, 2015
    Publication date: August 10, 2017
    Inventors: Andreas Daiss, Robert Bayer, Rudolf Schliwa, Jürgen Freiberg, Karl J. Possemiers, Marco Krüger
  • Publication number: 20150361654
    Abstract: A structural element with a controllable heat transfer coefficient comprises a frame. A first sheet and a second sheet opposite one another are arranged in the frame. The sheets and the frame have the effect of defining a closed-off volume which is filled with at least one gas. At least one two-dimensional element is arranged between the sheets. An upper intermediate space is formed between the two-dimensional element and the frame vertically upwardly and a lower intermediate space is formed between the two-dimensional element in the frame vertically downwardly. A first cavity is between the first sheet and the two-dimensional element. A second cavity is between the two-dimensional element and the second sheet. The cavities are connected via the upper intermediate space and the lower intermediate space such that a convection flows between the cavities via the intermediate spaces. At least one means arranged in the intermediate spaces controls the convection flow.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 17, 2015
    Applicants: BASF SE, Fraunhofer-Institut (ISE) für Solare Energiesystem
    Inventors: Nikolaus NESTLE, Andreas DAIß, Klaus HAHN, Ralf NÖRENBERG, Johann Martin SZEIFERT, Elena KHAZOVA, Achim LÖFFLER, Tilmann KUHN, Christoph MAURER, Thibault PFLUG, Jan WIENOLD, Andre GLÜCK
  • Patent number: 9011790
    Abstract: A reactor for carrying out a three-phase reaction of a liquid phase, a gaseous phase, and a catalyst over a fixed catalyst bed is disclosed. The liquid and gaseous phases are passed through the reactor via a mixing and distribution device positioned over the fixed catalyst bed. The mixing and distribution device includes a trough distributor for the liquid phase, having trough-shaped channels, outlet tubes in the trough-shaped channels for the liquid phase, a distributor plate below the trough distributor, and vertical nozzles, having one or more openings for the gaseous phase and one or more openings, arranged below the openings for the gaseous phase. For entry of the liquid phase, the nozzles are installed so that, at a predetermined liquid feed rate, the surface of the liquid on the distributor plate is below the openings for the gaseous phase and above the openings for the liquid phase.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 21, 2015
    Assignee: BASF SE
    Inventors: Stefan Iselborn, Andreas Daiss, Reiner Geier, Marcus Bechtel, Michael Wille, Benjamin Hepfer, John Sauter
  • Patent number: 8969493
    Abstract: The present invention relates to a process and to an apparatus for continuous living polymerization of cationically polymerizable monomers, in which at least three feedstocks are mixed in one or more mixers with microstructures and then polymerized in at least one reaction zone.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: March 3, 2015
    Assignee: BASF SE
    Inventors: Wolfgang Mattmann, Wolfgang Loth, Phillip Hanefeld, Elke Guetlich-Hauk, Thomas Wettling, Andreas Daiss
  • Patent number: 8957245
    Abstract: The invention relates to a process for preparing an isocyanate, which involves contacting fluid streams of amine, phosgene and inert medium in at least one mixing device, such that an inert medium stream is metered at least between one amine stream and one phosgene stream within the mixing device, and then reacting an amine with phosgene in a reaction chamber to form an isocyanate. In this process the inert medium stream is metered such that a point of first contact of the amine and the phosgene occurs at a distance from a surface of the mixing device, and a turbulent flow is present in the reaction chamber.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 17, 2015
    Assignee: BASF SE
    Inventors: Gerhard Olbert, Torsten Mattke, Carsten Knoesche, Andreas Daiss, Jens Denecke
  • Publication number: 20140088280
    Abstract: The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 27, 2014
    Applicant: BASF SE
    Inventors: Wolfgang Mattmann, Wolfgang Loth, Bolette Urtel, Elke Gütlich-Hauk, Christian Hubert Weidl, Andreas Daiß
  • Patent number: 8558026
    Abstract: The present invention relates to a process for preparing isocyanates.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: October 15, 2013
    Assignee: BASF SE
    Inventors: Gerhard Olbert, Torsten Mattke, Carsten Knoesche, Andreas Daiss, Jens Denecke
  • Publication number: 20130150620
    Abstract: The invention relates to a process for preparing an isocyanate, which involves contacting fluid streams of amine, phosgene and inert medium in at least one mixing device, such that an inert medium stream is metered at least between one amine stream and one phosgene stream within the mixing device, and then reacting an amine with phosgene in a reaction chamber to form an isocyanate. In this process the inert medium stream is metered such that a point of first contact of the amine and the phosgene occurs at a distance from a surface of the mixing device, and a turbulent flow is present in the reaction chamber.
    Type: Application
    Filed: February 7, 2013
    Publication date: June 13, 2013
    Inventors: Gerhard Olbert, Torsten Mattke, Carsten Knoesche, Andreas Daiss, Jens Denecke
  • Patent number: 8258337
    Abstract: The present invention relates to a process for preparing isocyanates and an apparatus suitable for this purpose, and also its use. In the process, an amine and phosgene, both in the gas phase, react in the presence of an inert medium. A number, n, of amine streams are reacted with a number, n +1, of phosgene streams in a reactor. The number n is a positive integer of at least 1. All amine and phosgene streams are introduced into the reactor through annular gaps for mixing.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 4, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Woelfert, Carsten Knoesche, Andreas Daiss, Tsung-Chieh Cheng, Torsten Mattke, Eckhard Stroefer
  • Patent number: 8173833
    Abstract: The present invention relates to a process for preparing isocyanates.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: May 8, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Woelfert, Andreas Daiss, Torsten Mattke
  • Patent number: 8168818
    Abstract: The invention relates to a process for preparing isocyanates in the gas phase.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: May 1, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Daiss, Andreas Woelfert, Carsten Knoesche, Eckhard Stroefer
  • Patent number: 8114320
    Abstract: A process for producing polymer particles by polymerizing liquid droplets in a gas phase by metering a liquid comprising at least one monomer from at least one feed by means of a multitude of bores into a reaction chamber comprising the gas phase, wherein ratio of length of the feed to greatest diameter of the feed in the region of the multitude of bores is at least 10.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: February 14, 2012
    Assignee: BASF SE
    Inventors: Dennis Lösch, Carolin Nadine Dücker, Asif Karim, Andreas Daiss, Marco Krüger, Volker Spindler, Stefan Blei, Dieter Ehnes, Oliver Gampfer, Dieter Reimer, Michael Heeger
  • Publication number: 20110194984
    Abstract: The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 11, 2011
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Ieo Van Miert
  • Publication number: 20110189464
    Abstract: Novel melamine-formaldehyde foams comprising microcapsules built into the structure of the condensation products and also processes for the production thereof and uses thereof.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 4, 2011
    Applicant: BASF SE
    Inventors: Tobias Heinz Steinke, Marc Rudolf Jung, Andreas Daiss, Hans-Jürgen Quadbeck-Seeger, Klaus Hahn, Horst Baumgartl, Jens-Uwe Schierholz, Bettina Wester, Christof Möck
  • Patent number: 7947794
    Abstract: The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 24, 2011
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Michael de Marco, Andreas Daiss, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert