Patents by Inventor Raphaël Mestanza

Raphaël Mestanza 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).

  • Polyphenylene sulphide-based compositions with improved impact strength and process for preparing them
    Patent number: 6849697
    Abstract: Polyphenylene sulphide-based compositions essentially containing 60 to 99.5% by weight of polyphenylene sulphide and 0.5 to 40% by weight of a combination (C) containing a compound (C1) chosen from olefinic elastomers containing epoxy groups and a compound (C2) chosen from crosslinking agents containing functional groups which are reactive towards the epoxy groups of the compound (C1) and are chosen from amino, hydroxyl, carboxyl and carboxylic acid anhydride groups. They are obtained by melt-blending polyphenylene sulphide with each of the compounds (C1) and (C2) of the combination (C) successively and in any order.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: February 1, 2005
    Assignee: Solvay Polyolefins, S.A.
    Inventors: Morand Lambla, Raphaël Mestanza, Dar-Jong Lin, Eric Vandevijver, Marie-Paule Collard
  • Polyphenylene sulphide-based compositions with improved impact strength and process for preparing them
    Patent number: 6699946
    Abstract: Polyphenylene sulphide-based compositions essentially containing 60 to 99.5% by weight of polyphenylene sulphide and 0.5 to 40% by weight of a combination (C) containing a compound (C1) chosen from olefinic elastomers containing epoxy groups and a compound (C2) chosen from crosslinking agents containing functional groups which are reactive towards the epoxy groups of the compound (C1) and are chosen from amino, hydroxyl, carboxyl and carboxylic acid anhydride groups. They are obtained by melt-blending polyphenylene sulphide with each of the compounds (C1) and (C2) of the combination (C) successively and in any order.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: March 2, 2004
    Assignee: Solvay (Societe Anonyme)
    Inventors: Morand Lambla, Raphaël Mestanza, Dar-Jong Lin, Eric Vandevijver, Marie-Paule Collard