Patents by Inventor Aroop K. Roy

Aroop K. Roy 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).

  • Polyorganooxothiazenes and method for preparing same
    Patent number: 5194557
    Abstract: This invention provides polyorganooxothiazenes exhibiting levels of molecular weight and properties not heretofore achieved by similar polymers reported in the prior art. The sulfonimidates that are condensed to form the polymers are prepared using a novel reaction between an N-triorganosilylsulfonamide and a triorganodihalophosphorane to form the corresponding N-triorganosilylsulfonimidoyl halide that is subsequently reacted with a fluorinated alcohol or phenol to form the N-triorgano-silylsulfonimidate.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: March 16, 1993
    Assignee: Dow Corning Corporation
    Inventors: Aroop K. Roy, Gary T. Burns
  • Method for preparing sulfonimidoyl halides
    Patent number: 5068379
    Abstract: N-triorganosilylsulfonimidoyl halides are prepared using a novel series of reactions from compounds of hexavalent sulfur selected from amides, chlorides and anhydrides of organosulfonic acids. More specifically, the present method relates to the reaction of an N-triorganosilyl- or an N,N-bis(triorganosilyl)-sulfonamide with a triorganodihalophosphorane to form the corresponding sulfonimidoyl halide.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: November 26, 1991
    Assignee: Dow Corning Corporation
    Inventor: Aroop K. Roy