Patents by Inventor Michele Gonnet

Michele Gonnet 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).

  • Method for preparing ether-ester-amide block polymers for among other moulding, extruding or spinning uses
    Patent number: 4252920
    Abstract: Process for preparing ether-ester-amide block polymers. It consists in the reaction, in the molten state of a dicarboxylic polyamide having COOH end groups with a polyoxyalkylene glycol having hydroxyl end groups in the presence of metallic tetraalkoxide(s) as catalysts. The tetraalkoxide(s) used are of the formula M(OR).sub.4 where M is Zr or Hf and the radicals R, identical or different are linear or branched C.sub.1 -C.sub.24 alkyl radicals.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: February 24, 1981
    Assignee: ATO Chimie
    Inventors: Gerard Deleens, Jacques Ferlampin, Michele Gonnet