Patents by Inventor Joerg ROTHER

Joerg ROTHER 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).

  • HETEROGENEOUS CATALYSTS FOR THE DIRECT CARBONYLATION OF NITRO AROMATIC COMPOUNDS TO ISOCYANATES
    Publication number: 20230131205
    Abstract: A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a multi metallic material comprising one or more binary intermetallic phases of the general formula AxBy wherein: A is one or more element selected from Ni, Ru, Rh, Pd, Ir, Pt and Ag, B is one or more element selected from Sn, Sb, Pb, Zn, Ga, In, Ge and As, x is in the range 0.1-10, y in is in the range 0.1-10.
    Type: Application
    Filed: November 3, 2022
    Publication date: April 27, 2023
    Inventors: Sven TITLBACH, Andreas KUSCHEL, Carlos LIZANDARA, Stephan A. SCHUNK, Joerg ROTHER, Juergen BECHTEL, Nedko Stefanov DREBOV, Stefan MAIXNER, Matthias HINRICHS, Mohamed HALABI, Imke Britta MUELLER, Michaela FENYN
  • Heterogeneous catalysts for the direct carbonylation of nitro aromatic compounds to isocyanates
    Patent number: 11512046
    Abstract: A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a multi metallic material comprising one or more binary intermetallic phases of the general formula AxBy wherein: A is one or more element selected from Ni, Ru, Rh, Pd, Ir, Pt and Ag, B is one or more element selected from Sn, Sb, Pb, Zn, Ga, In, Ge and As, x is in the range 0.1-10, y in is in the range 0.1-10.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 29, 2022
    Inventors: Sven Titlbach, Andreas Kuschel, Carlos Lizandara, Stephan A Schunk, Joerg Rother, Juergen Bechtel, Nedko Stefanov Drebov, Stefan Maixner, Matthias Hinrichs, Mohamed Halabi, Imke Britta Mueller, Michaela Fenyn
  • HETEROGENEOUS CATALYSTS FOR THE DIRECT CARBONYLATION OF NITRO AROMATIC COMPOUNDS TO ISOCYANATES
    Publication number: 20210002210
    Abstract: A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a multi metallic material comprising one or more binary intermetallic phases of the general formula AxBy wherein: A is one or more element selected from Ni, Ru, Rh, Pd, Ir, Pt and Ag, B is one or more element selected from Sn, Sb, Pb, Zn, Ga, In, Ge and As, x is in the range 0.1-10, y in is in the range 0.1-10.
    Type: Application
    Filed: April 4, 2018
    Publication date: January 7, 2021
    Applicant: BASF SE
    Inventors: Sven TITLBACH, Andreas KUSCHEL, Carlos LIZANDARA, Stephan A. SCHUNK, Joerg ROTHER, Juergen BECHTEL, Nedko Stefanov DREBOV, Stefan MAIXNER, Matthias HINRICHS, Mohamed HALABI, Imke Britta MUELLER, Michaela FENYN
  • PROCESS FOR PREPARING A CYCLIC DIESTER OR A CYCLIC DIAMIDE BY REACTING A HYDROXYCARBOXYLIC ACID OR AMIDE WITH AN ACIDIC BEA-TYPE (H-BETA POLYMORPH A) ZEOLITE
    Publication number: 20190375724
    Abstract: A process for preparing a cyclic diester or a cyclic diamide by reacting a hydroxycarboxylic acid or amide with an acidic BEA (H-beta polymorph A) type zeolite. The process is characterised in that the total amount of acid sites is in the range of from 0.25 to 1.0 mmol/g and the amount of medium acid sites is at least 40% of the total amount of acid sites. The total amount of acid sites and the amount of medium acid sites are determined by NH3-TPD (temperature-programmed desorption of ammonia). Preferably, the process refers to the preparation of lactide from lactic acid. The framework structure of the zeolitic material comprises Si, Al, O, and H.
    Type: Application
    Filed: March 14, 2018
    Publication date: December 12, 2019
    Applicant: BASF SE
    Inventors: Alvaro GORDILLO, Andrei-Nicolae PARVULESCU, Henelyta SANTOS RIBEIRO, Joerg ROTHER, Ivana JEVTOVIKJ, Ulrich MUELLER, Stefan MAURER