Patents by Inventor Sabine Chantal Eileen STIEBER

Sabine Chantal Eileen STIEBER 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 preparing an unsaturated carboxylic acid salt
    Patent number: 10011551
    Abstract: Catalytic process for preparing an ?,?-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the ?,?-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing ?,?ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 3, 2018
    Assignee: BASF SE
    Inventors: Michael Limbach, Ivana Jevtovikj, Nuria Huguet Subiela, Alvaro Gordillo, Sabine Chantal Eileen Stieber, Ronald Lindner, Miriam Bru Roig, Michael Lejkowski, Takeharu Kageyama, Stephan A. Schunk
  • PROCESS FOR PREPARING AN UNSATURATED CARBOXYLIC ACID SALT
    Publication number: 20170217869
    Abstract: Catalytic process for preparing an ?,?-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the ?,?-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing ?-?ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 3, 2017
    Applicant: BASF SE
    Inventors: Michael LIMBACH, Ivana JEVTOVIKJ, Nuria HUGUET SUBIELA, Alvaro GORDILLO, Sabine Chantal Eileen STIEBER, Ronald LINDNER, Miriam BRU ROIG, Michael LEJKOWSKI, Takeharu KAGEYAMA, Stephan A. SCHUNK