Patents by Inventor Jacques Druz

Jacques Druz 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).

  • Process for crosslinking ethylene polymers containing anhydride functions, crosslinkable polymers compositions and the application of these compositions to the coating of substrates
    Patent number: 4657781
    Abstract: A crosslinking process wherein at a temperature of about 10.degree. to 160.degree. C., under a pressure of about 1 to 300 bars and for at least about 0.5 hour, a polymer, containing from about 42 to 99% by weight of units derived from ethylene and, where appropriate, also from an .alpha.-olefin, from about 1 to 8% by weight of units derived from maleic anhydride and from 0 to about 50% by weight of units derived from at least one additional monomer selected from an ester of an unsaturated carboxylic acid with an alcohol containing from 1 to 12 carbon atoms, is reacted with at least one polyepoxide compound, preferably present in an amount of from about 1 to 10 parts by weight, based on 100 parts by weight of the polymer, in the presence of at least one catalyst suitable for reacting the anhydride functions with the epoxide functions. The catalyst is preferably present in an amount from about 0.02 to 2 parts by weight, based on 100 parts by weight of the polymer.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: April 14, 1987
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventors: Adrien Nicco, Jerome Hubert, Jacques Druz, Morand Lambla
  • Process for crosslinking ethylene polymers containing anhydride functions, crosslinkable polymer compositions and the application of these compositions to the coating of substrates
    Patent number: 4612349
    Abstract: A crosslinking process wherein at a temperature of about 10.degree. to 160.degree. C., under a pressure of about 1 to 300 bars and for at least about 0.5 hour, a polymer, containing from about 42 to 99% by weight of units derived from ethylene and, where appropriate, also from an .alpha.-olefin, from about 1 to 8% by weight of units derived from maleic anhydride and from 0 to about 50% by weight of units derived from at least one additional monomer selected from an ester of an unsaturated carboxylic acid with an alcohol containing from 1 to 12 carbon atoms, is reacted with at least one polyepoxide compound, preferably present in an amount of from about 1 to 10 parts by weight, based on 100 parts by weight of the polymer, in the presence of at least one catalyst suitable for reacting the anhydride functions with the epoxide functions. The catalyst is preferably present in an amount from about 0.02 to 2 parts by weight, based on 100 parts by weight of the polymer.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: September 16, 1986
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventors: Adrien Nicco, Jerome Hubert, Jacques Druz, Morand Lambla