Patents by Inventor Yves Runavot

Yves Runavot 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).

  • Resinous copolymer composition based on hydrocarbons and their use in adhesives
    Patent number: 4698405
    Abstract: A resinous copolymer composition essentially made up of a vinyl-aromatic monomer and at least one other hydrocarbon having a copolymerizable unsaturation, optionally together with one or more further copolymerizable compounds selected from the group comprising substituted benzene compounds, unsaturated carboxylic acid compounds and conjugated dienic compounds. This copolymer composition comprises at least 5% by weight of paramethylstyrene units, in a proportion at least equal to any amount of metamethylstyrene present in said copolymer composition and a resinous copolymer composition comprising at least 40% by weight of paramethylstyrene together with at least one other hydrocarbon monomer having a copolymerizable unsaturation, and optionally one or more further copolymerizable compounds selected from the group comprising substituted benzene compounds, unsaturated carboxylic acid compounds, and conjugated dienic compounds.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: October 6, 1987
    Inventors: Yves Runavot, Andre Thiot, Jacques Salvetat
  • Hot melt adhesive compositions employing resins based on 2-methyl styrene, styrene and a phenol
    Patent number: 4412030
    Abstract: Resins suitable for adhesives are based on .alpha.-methyl styrene, styrene and phenol in certain percentages, viz. 25 to 63, 35 to 73 and 2 to 15 percent by weight, respectively.Combinations of resin, ethylene vinyl acetate copolymer, atactic polypropylene, ethyl acrylate copolymer or a thermoelastomer and optionally a wax or tackifying oil yield excellent adhesives, in particular hot-melt adhesives.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: October 25, 1983
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jaques Salvetat
  • Copolymer tackifying resins containing dicyclopentadine, vinyl aromatic hydrocarbon and a substituted benzene (halogen, lower alkyl, or hydroxyl) and adhesives containing these resins
    Patent number: 4360628
    Abstract: Solid copolymer tackifying resins based on dicyclopentadiene, a vinylaromatic hydrocarbon and a benzene carrying 1 to 3 lower alkyl, hydroxyl or halogen substituents and adhesive formulations containing these resins.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 23, 1982
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jacques Salvetat
  • Resins based on .alpha.-methyl styrene, styrene and a phenol
    Patent number: 4357459
    Abstract: Resins suitable for adhesives are based on .alpha.-methyl styrene, styrene and phenol in certain percentages, viz. 25 to 63, 35 to 73 and 2 to 15 percent by weight, respectively,Combinations of resin, ethylene vinyl acetate copolymer or thermoelastomer and optionally a wax or tackifying oil yield excellent adhesives, in particular hot-melt adhesives.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: November 2, 1982
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jacques Salvetat