Patents by Inventor Philippe Le Coz

Philippe Le Coz 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).

  • Patent number: 7972706
    Abstract: This invention provides a multi-layer film or sheet prepared by coextruding or laminating polypropylene with one or more polyethylene(s), characterised in that the adhesion between a polypropylene layer and a polyethylene layer is provided by a metallocene-produced polyethylene.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: July 5, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Philippe Marechal, Philippe Le Coz, Christian Daffe
  • Publication number: 20050019596
    Abstract: This invention provides a multi-layer film or sheet prepared by coextruding or laminating polypropylene with one or more polyethylene(s), characterised in that the adhesion between a polypropylene layer and a polyethylene layer is provided by a metallocene-produced polyethylene.
    Type: Application
    Filed: October 3, 2002
    Publication date: January 27, 2005
    Inventors: Philippe Marechal, Philippe Le Coz, Christian Daffe
  • Patent number: 5366709
    Abstract: An absorbent liquid having an improved absorption capacity for acidic gaseous compounds due to the presence of an activator of tertiary alkanolamines. The activator is butylmonoethanolamine (BMEA). A process utilizing the absorbent liquid to remove acidic gaseous compounds from a gas.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: November 22, 1994
    Assignee: Societe Nationale Elf Aquitaine Production
    Inventors: Jean-Louis Peytavy, Philippe Le Coz, Olivier Oliveau
  • Patent number: 5348714
    Abstract: An absorbent liquid for improved absorption capacity for CO.sub.2 in a gas due to the presence of an activator for CO.sub.2 absorbent from the gas, the absorption liquid comprising a mixture of one or more tertiary alkanolamines and an activator of CO.sub.2 absorption by the tertiary alkanolamine, which activator has the general formula Y--(CpH.sub.2p)--NHZ wherein Y is a monovalent radical selected from the group consisting of piperazyl, piperidinyl, furyl, tetrahy-drothienyl and --OR.sub.2 radicals, Z is an R.sub.2 radical or hydrogen, R.sub.2 is a monovalent hydrocarbon residue, and p is an integer from 1 to 6. Also a process for using such absorbent liquid for improved CO.sub.2 absorption from a gas.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: September 20, 1994
    Assignee: Elf Aquitaine Production
    Inventors: Jean-Louis Peytavy, Philippe Le Coz, Olivier Oliveau
  • Patent number: 5277885
    Abstract: Liquid absorbing acid gas compounds presenting an improved CO.sub.2 absorption capacity, said absorbing liquid containing one or a plurality of tertiary alkanolamines and a CO.sub.2 absorption activator. The activator is comprised of at least one amino compound selected among polyalkylene-polyamines, alkylenediamines or cycloalkylenediamines, the aminoalkylated compounds of heterocycles such as piperazine, piperidine, furan, thiophene, tetrahydrofuran and tetrahydrothiophene, the alkoxyalkylamines and the alkylmono-alkanolamines having an alkyl residue in at least C.sub.2. Application of said absorbent liquid to the deacidification of gases containing CO.sub.2 and optionally other acid gas compounds, particularly H.sub.2 S and/or COS.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: January 11, 1994
    Assignee: Elf Aquitaine Production
    Inventors: Jean-Louis Peytavy, Philippe Le Coz, Olivier Oliveau
  • Patent number: 5209914
    Abstract: Liquid absorbing acid gas compounds presenting an improved CO.sub.2 absorption capacity, said absorbing liquid containing one or a plurality of tertiary alkanolamines and a CO.sub.2 absorption activator. The activator is comprised of at least one amino compound selected amongst polyalkylenepolyamines, alkylenediamines or cycloalkylenediamines, the aminoalkylated compounds of heterocycles such as piperazine, piperidine, furan, thiophene, tetrehydrofuran et tetrahydrothiophene, the alkoxyalkylamines and the alkylmonoalkanolamines having an alkyl residue in at least C.sub.2. Application of said absorbant liquid to the deacidification of gases containing CO.sub.2 and optionally other acid gas compounds, particularly H.sub.2 S and/or COS.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: May 11, 1993
    Assignee: Elf Aquitaine Production
    Inventors: Jean-Louis Peytavy, Philippe Le Coz, Olivier Oliveau