Patents by Inventor Marta Zajaczkowski-Fischer

Marta Zajaczkowski-Fischer 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: 10252970
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 9, 2019
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Patent number: 9834798
    Abstract: A process for preparing sebacic acid by reacting in a first step (i) linoleic acid with water catalyzed by an oleate hydratase to form 10-hydroxy-12-octadecenoic acid, in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid and in a third step (iii) oxidizing the 10-oxo-decanoic acid to sebacic acid.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: December 5, 2017
    Assignee: BASF SE
    Inventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
  • Patent number: 9809526
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid, wherein an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is converted to acrylic acid in the liquid phase in a first step and aqueous acrylic acid is distilled out of the liquid phase, and the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase in a second step.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 7, 2017
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Marta Zajaczkowski-Fischer, Marco Hartmann
  • Patent number: 9630900
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 25, 2017
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20170081268
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid, wherein an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is converted to acrylic acid in the liquid phase in a first step and aqueous acrylic acid is distilled out of the liquid phase, and the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase in a second step.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 23, 2017
    Inventors: Tim Blaschke, Ortmund Lang, Marta Zajaczkowski-Fischer, Marco Hartmann
  • Publication number: 20160221915
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.
    Type: Application
    Filed: September 2, 2014
    Publication date: August 4, 2016
    Applicant: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20160221916
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.
    Type: Application
    Filed: August 21, 2014
    Publication date: August 4, 2016
    Applicant: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20150259713
    Abstract: A process for preparing sebacic acid by reacting in a first step (i) linoleic acid with water catalyzed by an oleate hydratase to form 10-hydroxy-12-octadecenoic acid, in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid and in a third step (iii) oxidizing the 10-oxo-decanoic acid to sebacic acid.
    Type: Application
    Filed: September 3, 2013
    Publication date: September 17, 2015
    Applicant: BASF SE
    Inventors: Andrea Piatesi, Kai-Uwe Baldenius, Klaus Ditrich, Alois Kindler, Marta Zajaczkowski-Fischer, Ralf Boehling, Alwin Rehfinger
  • Publication number: 20140316128
    Abstract: Described are oligo- and polysaccharides containing amine groups. Specifically, described is a new process to manufacture cationic cellulose oligomers. The new cationic oligo- or polysaccharides are useful ingredients in various aqueous compositions, inter alia as ingredients for personal care compositions.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 23, 2014
    Inventors: Mari Granström, Volker Wendel, Anja Suckert, Claudia Wood, Helmuth Völlmar, Anni Knab, Alois Kindler, Marta Zajaczkowski-Fischer