Patents by Inventor Gisela HEPPE

Gisela HEPPE 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).

  • Method of preparing a polyrotaxane and polyrotaxane
    Patent number: 11248092
    Abstract: In one embodiment the invention relates to a method of preparing a polyrotaxane, said method comprising: performing a radical copolymerization of at least (a) a first polymerizable monomer having a stopper group, and of at least (b) a second polymerizable hydrophobic monomer, wherein said second monomer is complexed by a ring-shaped molecule, and of at least (c) a third polymerizable hydrophilic monomer; wherein during said copolymerization a copolymer threading said ring-shaped molecule is formed, wherein during said copolymerization said first monomer having a stopper group is incorporated into the chain of said copolymer at least partially between the ends thereof, and wherein said stopper groups prevent said ring-shaped molecule from disassembling from the copolymer; and wherein the amount of said first monomer having a stopper group is of from 0.1 mol % to 20 mol % based on 100 mol % of the total amount of polymerizable monomers.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 15, 2022
    Assignee: UNIVERSITAET DES SAARLANDES
    Inventors: Budiman Ali, Carsten Becker-Willinger, Gisela Heppe, Nina Mueller, Peter-William De Oliveira, Gerhard Wenz, Gergely Kali, Harley Eisenbarth, Devid Hero, David Hafner, Jessica Hilschmann
  • METHOD OF PREPARING A POLYROTAXANE AND POLYROTAXANE
    Publication number: 20190322814
    Abstract: In one embodiment the invention relates to a method of preparing a polyrotaxane, said method comprising: performing a radical copolymerization of at least (a) a first polymerizable monomer having a stopper group, and of at least (b) a second polymerizable hydrophobic monomer, wherein said second monomer is complexed by a ring-shaped molecule, and of at least (c) a third polymerizable hydrophilic monomer; wherein during said copolymerization a copolymer threading said ring-shaped molecule is formed, wherein during said copolymerization said first monomer having a stopper group is incorporated into the chain of said copolymer at least partially between the ends thereof, and wherein said stopper groups prevent said ring-shaped molecule from disassembling from the copolymer; and wherein the amount of said first monomer having a stopper group is of from 0.1 mol % to 20 mol % based on 100 mol % of the total amount of polymerizable monomers.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 24, 2019
    Inventors: Budiman ALI, Carsten BECKER-WILLINGER, Gisela HEPPE, Nina MUELLER, Peter-William DE OLIVEIRA, Gerhard WENZ, Gergely KALI, Harley EISENBARTH, Devid HERO, David HAFNER, Jessica HILSCHMANN