Patents by Inventor Dmitryi SHIMAN

Dmitryi SHIMAN 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 high-reactivity isobutene homo- or copolymers
    Patent number: 11629206
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 18, 2023
    Assignee: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman
  • Process for preparing high-reactivity isobutene homo- or copolymers
    Patent number: 11359034
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 14, 2022
    Assignee: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman
  • PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
    Publication number: 20210253752
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.
    Type: Application
    Filed: March 26, 2021
    Publication date: August 19, 2021
    Applicant: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman
  • Process for preparing high-reactivity isobutene homo- or copolymers
    Patent number: 10975175
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 13, 2021
    Assignee: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman, Ivan Berazianka
  • Process for preparing high-reactivity isobutene homo- or copolymers
    Patent number: 10975180
    Abstract: The present invention relates to a process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %, which comprises polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or an alkylaluminum halide-donor complex effective as a polymerization catalyst, wherein the aluminum trihalide or alkylaluminum halide is treated with at least one inorganic hydrate.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 13, 2021
    Assignee: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman
  • Process for preparing high-reactivity isobutene homo- or copolymers
    Patent number: 10968294
    Abstract: The present invention relates to a process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per homo- or copolymer chain end of at least 70 mol % which comprises polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, said complex comprising, as the donor, a mixture of at least two organic compounds with at least one ether function each.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 6, 2021
    Assignee: BASF SE
    Inventors: Rosa Corberan Roc, Klaus Muehlbach, Thomas Wettling, Sergei V. Kostjuk, Irina Vasilenko, Dmitryi Shiman
  • PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
    Publication number: 20200207887
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.
    Type: Application
    Filed: August 7, 2018
    Publication date: July 2, 2020
    Applicant: BASF SE
    Inventors: Rosa CORBERAN ROC, Klaus MUEHLBACH, Thomas WETTLING, Sergei V. KOST JUK, Irina VASILENKO, Dmitryi SHIMAN
  • PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
    Publication number: 20190284313
    Abstract: The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.
    Type: Application
    Filed: July 14, 2017
    Publication date: September 19, 2019
    Applicant: BASF SE
    Inventors: Rosa CORBERAN ROC, Klaus MUEHLBACH, Thomas WETTLING, Sergei V. KOSTJUK, Irina VASILENKO, Dmitryi SHIMAN, Ivan BERAZIANKA
  • PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
    Publication number: 20190062472
    Abstract: The present invention relates to a process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per homo- or copolymer chain end of at least 70 mol % which comprises polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, said complex comprising, as the donor, a mixture of at least two organic compounds with at least one ether function each.
    Type: Application
    Filed: February 13, 2017
    Publication date: February 28, 2019
    Applicant: BASF SE
    Inventors: Rosa CORBERAN ROC, Klaus MUEHLBACH, Thomas WETTLING, Sergei V. KOSTJUK, Irina VASILENKO, Dmitryi SHIMAN