Patents by Inventor Ronald Adelmann

Ronald Adelmann 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).

  • Conditioning of double metal cyanide catalysts
    Patent number: 9114380
    Abstract: The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 25, 2015
    Assignee: BASF SE
    Inventors: Igor Shishkov, Sirus Zarbakhsh, Ronald Adelmann, Wolfgang Rohde, Achim Loeffler
  • Process for a continuous production of polyetherols
    Patent number: 8957257
    Abstract: A process for a continuous production of a polyetherol first involves reacting a catalyst (5) with an alcohol starter (3) or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: February 17, 2015
    Assignee: BASF SE
    Inventors: Vinit Chilekar, Oliver Bey, Andreas Brodhagen, Achim Loffler, Fatemeh Admadnian, Ralf Bohling, Christoph Grossmann, Ulrich Kammel, Ronald Adelmann, Thomas Ostrowski, Milind Joshi, Gerrit Waters, Dirk Meckelnburg
  • PROCESS FOR A CONTINUOUS PRODUCTION OF POLYETHEROLS
    Publication number: 20130023700
    Abstract: A process for a continuous production of a polyetherol first involves reacting an alcohol with a starter or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 24, 2013
    Applicant: BASF SE
    Inventors: Vinit Chilekar, Oliver Bey, Andreas Brodhagen, Achim Löffler, Fatemeh Ahmadnian, Ralf Böhling, Christoph Grossmann, Ulrich Kammel, Ronald Adelmann, Thomas Ostrowski, Milind Joshi, Gerrit Waters, Dirk Meckelnburg
  • CONDITIONING OF DOUBLE METAL CYANIDE CATALYSTS
    Publication number: 20120253005
    Abstract: The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.
    Type: Application
    Filed: October 1, 2010
    Publication date: October 4, 2012
    Applicant: BASF SE
    Inventors: Igor Shishkov, Sirus Zarbakhsh, Ronald Adelmann, Wolfgang Rohde, Achim Loeffler