Patents by Inventor Robert Lagarde

Robert Lagarde 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: 4929460
    Abstract: Foodstuff items to be cooked, e.g., meats and boned poultry, are bound or wrapped in fibrous silicone elastomeric bindings, e.g., ties or nets, to maintain structural integrity during cooking. After cooking, such bindings have not decomposed, are not adhered to the foodstuff item, and have retained their elasticity.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: May 29, 1990
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Robert Lagarde, Daniel Ariagno, Jacques Nys
  • Patent number: 4782107
    Abstract: Heat-vulcanizable organopolysiloxane compositions, adopted for curing into silicone elastomers having improved reversion and oil resistance and useful, e.g., as seals in contact with hot oils, comprise at least one diorganopolysiloxane resin (A) having a viscosity of greater than 1,000,000 mPa.s at 25.degree. C., a reinforcing and/or semireinforcing filler material (B), an organic peroxide (C), an organosilicon compound (D) containing at least one acryloyloxyalkyl or methacryloyloxyalkyl group bonded to a silicon atom, and (E) at least one oxide or hydroxide of an alkaline earth metal.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: November 1, 1988
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Robert Lagarde
  • Patent number: 4761447
    Abstract: Heat-vulcanizable organopolysiloxane compositions well adopted for extrusion and molding, and facilely converted into elastomeric shaped articles having improved physical and electrical properties, e.g., seals and sections, include a diorganopolysiloxane oil containing from 0.05 to 3 mol % of vinylsiloxy recurring units, as well as an amine having a pKa greater than 7.5 in aqueous solution at 25.degree. C. and a boiling point of less than 270.degree. C. at atmospheric pressure.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: August 2, 1988
    Assignee: Rhone-Poulenc Chimie
    Inventors: Ming Shen, Robert Lagarde
  • Patent number: 4704425
    Abstract: Improved precipitated silica particulates, well adapted as a pigment or reinforcing filler for curable organosilic polymers and other elastomers, have the properties:______________________________________ (i) BET surface area 190 to 340 m.sup.2 /g (ii) CTAB surface area 180 to 280 m.sup.2 /g (iii) ##STR1## 0.9 to 1.2 (iv) Residual sodium content < 500 ppm (v) pH 3.5 to 6.0 (vi) Specific volume V.sub.o .gtoreq. 4.2 (vii) Amount of particles of a < 0.05%. size as will not pass through a 45.mu.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: November 3, 1987
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Lagarde, Jean Machurat, Jean-Claude Morawski, Georges Vrisakis
  • Patent number: 4690967
    Abstract: Improved heat-curable organopolysiloxane compositions, easily vulcanizable into silicone elastomers, are comprised of (A) a major amount of a diorganopolysiloxane gum, (B) a reinforcing filler therefor, (C) optionally, a diorganopolysiloxane oil, (D) an organic peroxide catalyst, and minor amounts of at least three of the following four additives: (E) an organohydrogenopolysiloxane, (F) an organofluorinated polymer, (G) an organosilonxane irgabcompound bearing at least one acroyloxyalkyl or methacroyloxyalkyl substituent covalently bonded to a silicon atom thereof, and (H) a boron compound.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 1, 1987
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Robert LaGarde, Noel Bouverot
  • Patent number: 4409356
    Abstract: Mechanically/thermally improved, filler reinforced organosilicic elastomers, e.g., organopolysiloxanes, are comprised of a reinforcing amount of precipitated silica particulates having the properties:______________________________________ (i) BET surface area 190 to 340 m.sup.2 /g (ii) CTAB surface area 180 to 280 m.sup.2 /g (iii) ##STR1## 0.9 to 1.2 (iv) Residual sodium content <500 ppm (v) pH 3.5 to 6.0 (vi) Specific volume V.sub.o >4.2 (vii) Amount of particles of <0.05% a size as will not pass through a 45.mu.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: October 11, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Lagarde, Georges Vrisakis
  • Patent number: 4104239
    Abstract: An organopolysiloxane composition is disclosed which is transformable into elastomers by heating without using any vulcanizing agent. These compositions comprise:[1] 100 parts by weight of at least one hydroxylated polydiorganosiloxane having a viscosity of between about 2.multidot.10.sup.5 and about 80.multidot.10.sup.6 cps at 25.degree. C. and containing 0.001 to 0.1% by weight of terminal hydroxy groups per weight of the polysiloxane;[2] at least 10 parts by weight of silica having a special surface of between about 100 and about 400 m.sup.2 /g; and[3] 0.5 to 15 parts by weight of at least one silane of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and represent methyl or ethyl.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: August 1, 1978
    Assignee: Rhone-Poulenc Industries
    Inventors: Michel Bargain, Robert Lagarde