Patents by Inventor Karin Schmiedel

Karin Schmiedel 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).

  • Patent number: 9000109
    Abstract: A process for polymerization of a polymer containing monomeric units derived from a styrene monomer and a 1,3-butadiene monomer includes polymerizing the monomeric units in the presence of an initiator, a first polar agent, and a second polar agent. The first polar agent includes a structure (I): R1?R2?N-Q-NR3?R4?; and the second polar agent comprises a structure (II): R1?, R2?, R3?, and R4? are each independently selected from the group consisting of an alkyl group and hydrogen; Q contains an alkylene group; R1 and R2 are each independently an alkyl group; and R3, R4, R5, R6, R7 and R8 are each independently selected from the group consisting of an alkyl group and hydrogen. Polymers prepared by the above process are described, as are compositions containing such a polymer, and articles containing at least one component formed from such a composition.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 7, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel
  • Patent number: 8981000
    Abstract: A polymer has at least the following characteristics: (a) a block styrene content containing 4 to 6 styrene units from about 27 to about 50 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 30 to about 80 weight percent based on total amount of polymerized 1,3-butadiene; and (c) a styrene content from about 40 to about 70 weight percent based on total weight of polymer. Processes for the polymerization of such a polymer, compositions containing such a polymer, and articles containing at least one component formed from such a composition are described.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: March 17, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel
  • Publication number: 20140024767
    Abstract: A polymer has at least the following characteristics: (a) a block styrene content containing 4 to 6 styrene units from about 27 to about 50 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 30 to about 80 weight percent based on total amount of polymerized 1,3-butadiene; and (c) a styrene content from about 40 to about 70 weight percent based on total weight of polymer. Processes for the polymerization of such a polymer, compositions containing such a pofymer, and articles containing at least one component formed from such a composition are described.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 23, 2014
    Applicant: Styron europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel
  • Publication number: 20130345379
    Abstract: A process for polymerization of a polymer containing monomeric units derived from a styrene monomer and a 1,3-butadiene monomer includes polymerizing the monomeric units in the presence of an initiator, a first polar agent, and a second polar agent. The first polar agent includes a structure (I): R1?R2?N-Q-NR3?R4?; and the second polar agent comprises a structure (II): R1?, R2?, R3?, and R4? are each independently selected from the group consisting of an alkyl group and hydrogen; Q contains an alkylene group; R1 and R2 are each independently an alkyl group; and R3, R4, R5, R6, R7 and R8 are each independently selected from the group consisting of an alkyl group and hydrogen. Polymers prepared by the above process are described, as are compositions containing such a polymer, and articles containing at least one component formed from such a composition.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 26, 2013
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel