Patents by Inventor Alexander Sunder

Alexander Sunder 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).

  • Method for producing highly-branched glycidol-based polyols
    Patent number: 6822068
    Abstract: This invention relates to a process for the preparation of highly-branched polyols by polymerisation of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colorless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7. The present invention also relates to polyols that comprise the reaction product of the polyols based on glycidol with one or more expoxide monomers. This invention also relates to a process for the preparation of these polyols.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: November 23, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Sunder, Rolf Mülhaupt
  • Method for producing highly-branched glycidol-based polyols
    Patent number: 6765082
    Abstract: This invention relates to as process for the preparation of highly-branched polyols by polymerization of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colorless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: July 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Sunder, Rolf Mülhaupt
  • Method for producing highly-branched glycidol-based polyols
    Publication number: 20030120022
    Abstract: This invention relates to a process for the preparation of highly-branched polyols by polymerisation of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colourless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.
    Type: Application
    Filed: January 2, 2003
    Publication date: June 26, 2003
    Inventors: Alexander Sunder, Rolf Mulhaupt
  • Method for producing highly-branched glycidol-based polyols
    Publication number: 20030092879
    Abstract: This invention relates to a process for the preparation of highly-branched polyols by polymerisation of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein glycidol is added in dilute solution and the solvent used for the dilution is continuously distilled off. The polyols thus prepared are colourless, contain as the core unit solely the starter compound used and have polydispersities of less than 1.7.
    Type: Application
    Filed: January 2, 2003
    Publication date: May 15, 2003
    Inventors: Alexander Sunder, Rolf Mulhaupt