Patents by Inventor Gilbert Schorsch

Gilbert Schorsch 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).

  • Process for the preparation of aqueous dispersions of magnetizable polymer particles with a desired size narrow distribution, and aqueous dispersions thereof, and uses thereof
    Patent number: 5242964
    Abstract: A process for the preparation of aqueous dispersions of magnetizable polymer particles with a narrow distribution from aqueous dispersions with a wide distribution. The amount of water in the aqueous dispersion with a wide distribution is adjusted so that the proportion by weight of magnetizable polymer particles is between about 1 and 40% of said dispersion. The surfactant concentration of the dispersion after the water adjustment is increased until two phases are obtained: a so-called liquid phase and a so-called solid phase. After separation of these two phases is accomplished, these steps are repeated as desired. An aqueous dispersion with a narrow size distribution is recovered.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: September 7, 1993
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jerome Bibette, Dominique Charmot, Gilbert Schorsch
  • Two-package RTV organopolysiloxanes comprising a water-retaining polymer
    Patent number: 5070132
    Abstract: Two-package RTV organopolysiloxane compositions are prepared from storage-stable dihydroxypolydiorganosiloxane aqueous doughs that include an effective water-retaining amount of an alkali metal acrylate and/or methacrylate polymer (hydroretainer); such doughs advantageously contain from 8% to 35% by weight of water.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: December 3, 1991
    Assignee: Rhone-Poulenc Chimie
    Inventors: Pierre-Michael Peccoux, Gilbert Schorsch
  • Curable organopolysiloxane compositions comprising a hydrogel hardening agent
    Patent number: 4918140
    Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include a ketiminoxy crosslinking agent and a natural or synthetic hydrogel hardening agent.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: April 17, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Pierre-Michel Peccoux, Gilbert Schorsch
  • Curable organopolysiloxane compositions comprising a hydrogel hardening agent
    Patent number: 4918121
    Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include an acyloxy crosslinking agent and a natural or synthetic hydrogel hardening agent.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: April 17, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Pierre-Michel Peccoux, Gilbert Schorsch
  • Polymeric matrices reinforced with highly dispersed synthetic zeolitic particulates
    Patent number: 4420582
    Abstract: High impact strength, improved bending modulus composites are comprised of a polymeric matrix, e.g., elastomer or synthetic polymer of polypropylene or polyamide type, said matrix having highly dispersed therein a reinforcing amount of relatively small synthetic zeolitic filler particulates, e.g., of types A, 4A and Na-P, and the mean size of the elementary particles thereof advantageously closely approximating those of the secondary particles.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: December 13, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Pierre Canard, Bertrand Latourrette, Gilbert Schorsch