Patents by Inventor BERTRAND DE BACKER

BERTRAND DE BACKER 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).

  • Elastomer mix comprising PLLA and PDLA
    Patent number: 11987671
    Abstract: An elastomeric mixture comprises at least: one diene elastomer/polylactide copolymer A1 comprising a polylactide block PLLA or PDLA, where appropriate one or more other polylactide blocks which are all PLLA when the first block is PLLA or which are all PDLA when the first block is PDLA, the mass percentage of the polylactide block(s) being between 10% and 50% by weight relative to the weight of the copolymer A1, and a diene elastomer/polylactide copolymer B1 the mass percentage of the polylactide block(s) in said copolymer B1 being between 10% and 50% by weight relative to the weight of the copolymer B1, or a polylactide B2, or a mixture of said copolymer B1 and of said polylactide B2, the names PLLA and PDLA denoting a chain consisting of units of formula (I) —[CH(CH3)—C(O)—O]— (I), of which at least 70% by weight are, respectively, of L and D configuration.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 21, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Nathalie Coste, Lise Maisonneuve, Gilles Mioche, Severin Dronet, Julien Cayuela, Bertrand De Backer, Philippe Ghislain Dubois
  • HIGH PLA CONTENT PLASTIC MATERIAL COMPRISING PPGDGE
    Publication number: 20220275198
    Abstract: The present invention relates to a plastic composition based on biodegradable and biosourced polyesters, in particular for preparing plastic films.
    Type: Application
    Filed: July 10, 2020
    Publication date: September 1, 2022
    Inventors: Clementine ARNAULT, Bertrand DE BACKER, Julien CAYUELA, Philippe DUBOIS
  • ELASTOMER MIX COMPRISING PLLA AND PDLA
    Publication number: 20210253801
    Abstract: An elastomeric mixture comprises at least: one diene elastomer/polylactide copolymer A1 comprising a polylactide block PLLA or PDLA, where appropriate one or more other polylactide blocks which are all PLLA when the first block is PLLA or which are all PDLA when the first block is PDLA, the mass percentage of the polylactide block(s) being between 10% and 50% by weight relative to the weight of the copolymer A1, and a diene elastomer/polylactide copolymer B1 the mass percentage of the polylactide block(s) in said copolymer B1 being between 10% and 50% by weight relative to the weight of the copolymer B1, or a polylactide B2, or a mixture of said copolymer B1 and of said polylactide B2, the names PLLA and PDLA denoting a chain consisting of units of formula (I) —[CH(CH3)—C(O)—O]— (I), of which at least 70% by weight are, respectively, of L and D configuration.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 19, 2021
    Inventors: NATHALIE COSTE, LISE MAISONNEUVE, GILLES MIOCHE, SEVERIN DRONET, JULIEN CAYUELA, BERTRAND DE BACKER, PHILIPPE GHISLAIN DUBOIS