Patents by Inventor Arthur Provatas

Arthur Provatas 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).

  • Preparation of polyorganosiloxanes by interfacial polymerization
    Patent number: 5637668
    Abstract: A process for manufacturing high molecular weight polysiloxane copolymers by interfacial polymerization. The polysiloxanes may contain phenylmethyl siloxane blocks and dimethyl siloxane blocks, alternately polymerized together to form an (A.sub.m B.sub.n).sub.x type copolymer. The interfacial polymerization process is fast, proceeds smoothly at room temperature, and is not reversible, i.e., no cyclic siloxane species are generated. The polysiloxanes can be formed as thermoplastic elastomers suitable for use as sealants, fillers, and films.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: June 10, 1997
    Assignees: Dow Corning Corporation, University of South Australia
    Inventors: Daniel Graiver, Arnold W. Lomas, Jani G. Matisons, Arthur Provatas