Patents by Inventor Lucien Marc Papouchado

Lucien Marc Papouchado 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).

  • Segmented copolyester adhesives stabilized by alkaline earth oxides and carboxylic compounds
    Patent number: 3969294
    Abstract: Thermally stabilized thermoplastic hot melt adhesive compositions which comprise, based on the total thermoplastic components, (A) 1 to 99 percent by weight of thermoplastic segmented copolyester elastomer consisting essentially of a multiplicity of recurring short chain ester units and long chain ester units joined through ester linkages, said short chain ester units amounting to 15 to 75 percent by weight of said copolyester and being of the formula ##EQU1## and said long chain ester units amounting to 25 to 85 percent by weight of said copolyester and being of the formula ##EQU2## wherein R is the divalent radical remaining after removal of the carboxyl groups from a dicarboxylic acid having a molecular weight of less than 350, D is the divalent radical remaining after removal of the hydroxyl groups from organic diol having a molecular weight of less than 250, and G is the divalent radical remaining after removal of the terminal hydroxyl groups from long chain glycol having an average molecular weight of 3
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: July 13, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lucien Marc Papouchado