Patents by Inventor Timothy P. Pollagi

Timothy P. Pollagi 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 for the synthesis of chlorosilanes
    Patent number: 5939577
    Abstract: A novel method for the synthesis of chlorinated or partially chlorinated organosilanes and organopolysilanes. The chlorination is effected by contacting an organosilanes or organopolysilanes with anhydrous CuCl.sub.2 in a nonpolar alkane solvent, preferably pentane or hexadecane, without the use of a catalyst. Copper metal, which is easily filtered, is a reaction product. The filtrate containing the chlorinated organosilane or organopolysilane can be used directly as a reactant to produce, for example, aminoorganosilanes.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: August 17, 1999
    Assignee: Sandia Corporation
    Inventors: David R. Wheeler, Timothy P. Pollagi