Patents by Inventor Dominique Ranceze

Dominique Ranceze 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).

  • Antioxidant polyolefin compositions
    Patent number: 5229444
    Abstract: Antioxidant-containing polyolefin composition containing a polyolefin and an antioxidant compound having the general formula: ##STR1## wherein R, R', X and Y are the same or different and are selected from alkyl, phenyl, cyclohexyl, a mono or polyfunctional carboxylic acid ester, hydroxyalkyl, and aralkyl, which groups may be unsubstituted or substituted, linear or branched, or cyclic, and p indicates a degree of polymerization and is at least 2.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: July 20, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: William L. Smith, Michel Foure', Dominique Ranceze, Pierre Tozzolino
  • Composition usable for the thermal and ultaviolet stabilization of thermoplastic resins and thermoplastic resins containing such a stabilizing composition
    Patent number: 5141980
    Abstract: The invention relates to a composition which is usable for the stabilization of thermoplastic resin against the effects of heat and/or light.This composition comprises a hydrotalcite, a zinc zeolite and a zinc carboxylate.It is applied, more especially, to thermoplastic resins containing halogens, and in particular to PVC.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: August 25, 1992
    Assignee: Elf Atochem North America, Inc.
    Inventors: Dominique Ranceze, Jean Boussely