Patents by Inventor Christine Sivac

Christine Sivac 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 producing siloxane copolymers with urethane-sulphonamido linking groups
    Patent number: 8741979
    Abstract: Readily emulsifyable silicone copolymers containing urethanesulfonamido linking groups are prepared by reacting a hydroxyl-functional organic polymer with a halo- or pseudohalo-sulfonyl isocyanate, and then reacting the halo- or pseudohalo-sulfonyl product with an organopolysiloxane bearing aminoalkyl groups, preferably in stoichiometric excess.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: June 3, 2014
    Assignee: Wacker Chemie AG
    Inventors: Christian Herzig, Christine Sivac
  • PROCESS FOR PRODUCING SILOXANE COPOLYMERS WITH URETHANE-SULPHONAMIDO LINKING GROUPS
    Publication number: 20130123376
    Abstract: Readily emulsifyable silicone copolymers containing urethanesulfonamido linking groups are prepared by reacting a hydroxyl-functional organic polymer with a halo- or pseudohalo-sulfonyl isocyanate, and then reacting the halo- or pseudohalo-sulfonyl product with an organopolysiloxane bearing aminoalkyl groups, preferably in stoichiometric excess.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: WACKER CHEMIE AG
    Inventors: Christian Herzig, Christine Sivac