Patents by Inventor Steven E. Cray

Steven E. Cray 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: 5603888
    Abstract: A process of manufacturing elastomeric fibers in which fibers are obtained by co-extruding an extrudable and curable .tbd.SiO-- containing material and an aqueous organic polymer solution into a coagulation bath. The .tbd.SiO-- containing material is surrounded by the coagulated organic polymer. The .tbd.SiO-- containing material is then cured inside the protective sheath that is formed, and thereafter the organic polymer sheath is dissolved to expose a continuous elastomeric fiber of the .tbd.SiO-- material.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: February 18, 1997
    Assignee: Dow Corning Corporation
    Inventors: John D. Blizzard, Steven E. Cray, Jenny L. Gilles, Daniel Graiver, Arnold W. Lomas, James McVie
  • Patent number: 5391675
    Abstract: A process for the preparation of amino-substituted organopolysiloxanes which comprises the steps of mixing a catalyst comprising both (i) at least one compound selected from barium hydroxide and strontium hydroxide and (ii) at least one compound selected from borates and phosphates of sodium with (A) a silanol terminated organopolysiloxane compound and (B) an organosilicon compound having at least one silicon-bonded alkoxy or alkoxyalkoxy group and a monovalent substituent composed of carbon, nitrogen and hydrogen and having at least one --NH.sub.2 therein attached to silicon by way of a silicon to carbon linkage and thereafter allowing (A) and (B) to react at a temperature of at least 50.degree. C.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: February 21, 1995
    Assignee: Dow Corning Limited
    Inventors: Steven E. Cray, Mubarik M. Chowdhry