Patents by Inventor Herve Thyebault

Herve Thyebault 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 agglomerating a latex, agglomerated latex obtained and its application of the modification of thermoplastic matrices to make them impact-resistant
    Patent number: 5262455
    Abstract: The agglomeration of a latex of a polymer chosen from elastomers and thermoplastic resins is performed by mixing the latex to be agglomerated with an agglomerating latex consisting of:(A) a polymer chosen from elastomers and thermoplastic resins; and(B) a nonionic surface-active agent consisting of a block polymer containing at least one polyoxyethylene block and at least one block of a polymer chosen from vinyl, diene and acrylic and methacrylic ester polymers,the said agglomerating latex being produced by the synthesis of the polymer defined under (A) during which (B) has been employed as a surfactant. The polyoxyethylene-polystyrene-polyoxyethylene triblock polymer may be mentioned among the surface-active agents (B).
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: November 16, 1993
    Assignee: Societe Chimique des Charbonnages, S.A.
    Inventors: Gerard Riess, Herve Thyebault
  • Process for agglomerating a latex, agglomerated latex obtained and its application to the modification of thermoplastic matrices to make them impact-resistant
    Patent number: 5244940
    Abstract: The agglomeration of a latex of a polymer chosen from elastomers and thermoplastic resins is performed by mixing the latex to be agglomerated with an agglomerating latex consisting of:(A) a polymer chosen from elastomers and thermoplastic resins; and(B) a nonionic surface-active agent consisting of a block polymer containing at least one polyoxyethylene block and at least one block of a polymer chosen from vinyl, diene and acrylic and methacrylic ester polymers,the said agglomerating latex being produced by the synthesis of the polymer defined under (A) during which (B) has been employed as a surfactant. The polyoxyethylene-polystyrene-polyoxyethylene triblock polymer may be mentioned among the surface-active agents (B).
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: September 14, 1993
    Assignee: Societe Chimique des Charbonnages, S.A.
    Inventors: Gerard Riess, Herve Thyebault