Patents by Inventor Bernard Bourseau

Bernard Bourseau 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).

  • Gelled premixes based on heat-resistant polymers and polyvinyl chloride-based compositions containing such gelled premixes
    Patent number: 5281642
    Abstract: Gelled premixes based on heat-resistant polymers whose Vicat softening point is higher than 100.degree. C., containing an impact strength improver and a lubricant for polyvinyl chloride and polyvinyl chloride-based compositions containing such gelled premixes. The incorporation of heat-resistant polymers in the form of gelled premixes results in perfectly homogeneous polyvinyl chloride-based compositions which are converted without any problems at the usual temperatures for processing polyvinyl chloride into shaped articles with improved heat resistance.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: January 25, 1994
    Assignee: Solvay (Societe Anonyme)
    Inventors: Bernard Bourseau, Jean Criquilion