Patents by Inventor Klaus Muelbach

Klaus Muelbach 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: 8637619
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by 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, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: January 28, 2014
    Assignee: BASF SE
    Inventors: Hannah Maria Koenig, Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov
  • PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS
    Publication number: 20130059995
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by 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, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Application
    Filed: November 2, 2012
    Publication date: March 7, 2013
    Inventors: Hannah Maria KOENIG, Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov
  • Process for preparing high-reactivity isobutene homo- or copolymers
    Patent number: 8349977
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by 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, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 8, 2013
    Assignee: BASF SE
    Inventors: Hannah Maria Koenig, Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov