Patents by Inventor Michael SCHAFRANKA

Michael SCHAFRANKA 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).

  • Process for continuously preparing n-butyl acrylate or isobutyl acrylate
    Patent number: 10941103
    Abstract: A process for continuously preparing a butyl acrylate H2C?CH—C(?O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: March 9, 2021
    Assignee: BASF SE
    Inventors: Ortmund Lang, Tim Blaschke, Christian Raith, Michael Schafranka, Claus Hechler
  • PROCESS FOR CONTINUOUSLY PREPARING N-BUTYL ACRYLATE OR ISOBUTYL ACRYLATE
    Publication number: 20200239400
    Abstract: A process for continuously preparing a butyl acrylate H2C?CH—C(?O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.
    Type: Application
    Filed: August 13, 2018
    Publication date: July 30, 2020
    Applicant: BASF SE
    Inventors: Ortmund LANG, Tim BLASCHKE, Christian RAITH, Michael SCHAFRANKA, Claus HECHLER