Patents by Inventor Anne Schuwey

Anne Schuwey 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).

  • Thermal- and photoinitiated radical polymerization in the presence of an addition fragmentation agent
    Patent number: 6576684
    Abstract: Disclosed are compositions from which radically initiated oligomers/polymers having a controlled molecular weight, low polydispersity and a vinyl or dienyl end group are prepared. Further subjects of the invention are a process for controlled radical polymerization, oligomers/polymers obtainable by said process and the use of specific addition fragmentation agents for the polymerization process. The addition fragmentation agents are new in part and these are also subject of the present invention. The addition fragmentation agents are of the formula (Ia), (Ib) or (Ic) where Y is a group which activates the double bond towards Michael addition.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: June 10, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Vincent Desobry, Peter Murer, Anne Schuwey