Patents by Inventor Rene Pagliari

Rene Pagliari 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).

  • Twin-screw extrusion of silicone doughs suited for SiH/SiVi RTV compositions
    Patent number: 5531923
    Abstract: Silicone doughs suitable for incorporation into diorganopolysiloxane compositions crosslinkable into elastomeric state are rapidly and conveniently formulated by continuously and simultaneously individually introducing along the longitudinal axis of a twin-screw extruder, via a plurality of longitudinally spaced discrete inlet entries, and twin-screw extruding (a) a polydiorganosiloxane oil having a viscosity at 25.degree. C. of less than 500,000 mPa.s and containing at least two .tbd.Si-CH=CH.sub.2 functional groups per molecule, (b) water, (c) silica, and (d) a polysilazane which is liquid under normal conditions of temperature and pressure.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: July 2, 1996
    Assignee: Rhone-Poulenc Chimie
    Inventors: Loic Le Blanc, Rene Pagliari