Patents by Inventor Louis Foulletier

Louis Foulletier 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: 4983769
    Abstract: Perfluoroalkyl amine oxides of the following formula: ##STR1## where C.sub.n F.sub.2n+1 is a straight or branched perfluorinated chain, n is a whole number from 1 to 20, a is a whole number from 2 to 10, p is a whole number from 0 to 10, R.sub.1 is either a hydrogen atom or an alkyl radical having 1 to 6 carbon atoms, and R.sub.2 and R.sub.3 are alkyl radicals having 1 to 6 carbon atoms, and the use of the amine oxides as surface active agents particularly in fire extinguishing compositions.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: January 8, 1991
    Assignee: P C U K Produits Chimiques Ugine Kuhlmann
    Inventors: Rene Bertocchio, Louis Foulletier, Andre Lantz
  • Patent number: 4876406
    Abstract: This invention relates to improved catalysts for gaseous phase fluoridation of aliphatic chlorinated and chlorofluorinated hydrocarbons by hydrofluoric acid. The catalysts comprise chromium salts or oxides complexed with aluminum phosphate and are characterized by a total specific surface area greater than about 200 m.sup.2 /g, but less than about 1000 m.sup.2 /g a surface area of pores of 40 to 50 .ANG. in radius above about 5 m.sup.2 /g, but less than about 150 m.sup.2 /g, a surface area of pores greater than or equal to 250 .ANG. in radius above about 2 m.sup.2 /g. but less than about 60 m.sup.2 /g. This invention also relates to gaseous phase fluoridation processes for chlorinated or chlorofluorinated derivatives utilizing these catalysts in fluidized bed reactors.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: October 24, 1989
    Assignee: PCUK-Produits Chimiques Uginc Kuhlmann
    Inventor: Louis Foulletier
  • Patent number: 4748285
    Abstract: This invention relates to catalysts for gaseous phase fluorination of aliphatic chlorinated derivatives by hydrofluoric acid. The catalysts comprise chromium oxide microspheres obtained by a sol-gel process. This invention also relates to gaseous phase fluorination processes for aliphatic chlorinated derivatives utilizing these catalysts.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: May 31, 1988
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventor: Louis Foulletier
  • Patent number: 4613681
    Abstract: This invention relates to a process for the preparation of a fluorinated compound of the general formulaR.sub.F C.sub.2 H.sub.4 ORcomprising reacting an iodide of the general formula R.sub.F C.sub.2 H.sub.4 I with a percarboxylic acid of the general formula R.sup.1 CO.sub.3 H at a temperature and for a time sufficient to form said fluorinated compound; in said formulae R.sub.F is a straight or branched chain perfluorinated radical containing 1 to 20 C atoms, R is a hydrogen atom or --COR.sup.1, and R.sup.1 is a hydrogen atom or an aliphatic or aromatic hydrocarbon radical.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: September 23, 1986
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Andre Lantz
  • Patent number: 4610829
    Abstract: New products and compositions of matter complying with the general formula:[C.sub.n F.sub.2n+1 --CH.sub.2 --.sub.b SO.sub.2 --Z].sub.d Mwherein: C.sub.n F.sub.2n+1 represents a straight or ramified branched perfluorinated chain: n represents a whole number between 1 and 20, b is a whole number between 2 and 20, preferably equal to 2 or 4, Z represents a chlorine, bromine or an oxygen atom (when Z is a chlorine or a bromine atom, M is nothing and d is equal to 1), when Z is an oxygen atom: M is a hydrogen atom in which case, d is equal to 1, M is a metal of the Groups I.sub.A, II.sub.A, I.sub.B, II.sub.B, VIII of the periodic table, the ammonium radical, the aluminum or the lead radical, and in which case d represents the valence of this metal and methods for preparing new products as illustrated by the following representative reactions.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: September 9, 1986
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Jean-Pierre Lalu, Louis Foulletier
  • Patent number: 4605798
    Abstract: This invention relates to a continuous gaseous-phase process for the preparation of trichlorotrifluoroethane, dichlorotetrafluoroethane and monochloropentafluoroethane, in predetermined proportions, from tetrachloroethylene, chlorine and hydrofluoric acid in the presence of a catalyst. The process is characterized by the combination of two chlorination-fluorination reactors in sequence, a parallel fluorination-dismutation reactor, and a separation unit for extracting the desired products and recycling recovered hydrofluoric acid and non-fluorinated or insufficiently fluorinated products. The process advantageously yields dichlorotetrafluoroethane containing less than 7% asymmetric isomer, and trichlorotrifluoroethane containing less than 2% asymmetric isomer.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: August 12, 1986
    Assignee: PCUK Products Chimiques Ugine Kuhlmann
    Inventors: Michel Abel, Francois Fine, Louis Foulletier, Yvan Verot
  • Patent number: 4474895
    Abstract: This invention relates to improved catalysts for gaseous phase fluorination of aliphatic chlorinated and chlorofluorinated hydrocarbons by hydrofluoric acid. The catalysts are characterized by an active carbon support having a total specific surface area greater than about 1000 m.sup.2 /g but less than about 2000 m.sup.2 /g, a surface area of pores of 40 to 50 .ANG. in radius above about 5 m.sup.2 /g but less than about 15 m.sup.2 /g, a surface area of pores greater than or equal to 250 .ANG. in radius above about 2 m.sup.2 /g but less than about 6 m.sup.2 /g, which has been impregnated with an aqueous chromium trioxide solution and dried. This invention also relates to gaseous phase fluorination processes for chlorinated or chlorofluorinated derivatives utilizing these catalysts in fluidized bed reactors.
    Type: Grant
    Filed: November 24, 1981
    Date of Patent: October 2, 1984
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventor: Louis Foulletier
  • Patent number: 4439534
    Abstract: This invention relates to catalysts for gaseous phase fluorination of aliphatic chlorinated derivatives by hydrofluoric acid. The catalysts comprise chromium oxide microspheres obtained by a sol-gel process. This invention also relates to gaseous phase fluorination processes for aliphatic chlorinated derivatives utilizing these catalysts.
    Type: Grant
    Filed: November 24, 1981
    Date of Patent: March 27, 1984
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventor: Louis Foulletier
  • Patent number: 4418004
    Abstract: This invention relates to improved catalysts for gaseous phase fluorination of aliphatic chlorinated and chlorofluorinated derivatives by hydrofluoric acid. The catalysts are characterized by an active carbon support having a total specific surface area greater than about 1000 m.sup.2 /g but less then about 2000 m.sup.2 /g, a surface area of pores of 40 to 50 .ANG. in radius above about 5 m.sup.2 /g but less then about 15 m.sup.2 /g, a surface area of pores greater than or equal to 250 .ANG. in radius above about 2 m.sup.2 /g but less than about 6 m.sup.2 /g, which has been impregnated with an aqueous chromium sulfate solution and dried. This invention also relates to gaseous phase fluorination processes for chlorinated or chlorofluorinated derivatives utilizing these catalysts in fluidized bed reactors.
    Type: Grant
    Filed: November 24, 1981
    Date of Patent: November 29, 1983
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventor: Louis Foulletier
  • Patent number: 4383929
    Abstract: A fluorinated sulphobetaine compound of the general formula ##STR1## wherein R.sub.F represents a straight-chained or branched perfluorinated aliphatic chain C.sub.n F.sub.2n+1 (n being an integer between 1 and 20), a is an integer between 0 and 10, X is CO or SO.sub.2, p is an integer between 0 and 10, R.sub.1 is a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms, R.sub.2 and R.sub.3 are each alkyl radicals containing 1 to 6 carbon atoms, and Z is a bivalent organic group; and fire extinguishing compositions comprising such fluorinated sulphobetaine compounds.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: May 17, 1983
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Rene Bertocchio, Louis Foulletier, Andre Lantz
  • Patent number: 4191666
    Abstract: A stable emulsion comprising from about 70% to 98.5% by weight of trichlorotrifluoroethane, from about 1% to 20% by weight of water, and from about 0.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: March 4, 1980
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Pierre Chabert, Louis Foulletier
  • Patent number: 4069158
    Abstract: Aqueous fire-extinguishing compositions comprising a mixture of (1) a nonionic surface-active agent, (2) a amphoteric surface active agent and (3) a fluorinated cationic surface active agent containing as a part of the molecule an aromatic radical.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: January 17, 1978
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Rene Bertocchio, Louis Foulletier
  • Patent number: 4062849
    Abstract: New compositions having the following general formula: ##STR1## in which A. C.sub.n F.sub.2n+1 represents a straight or branched perfluorinated chain with n being 1 and 20.B. X.sup.- is an anion such as a halogen, a sulfate, an alkyl sulfate.Of these anions the preferred ones are halogens such as the fluoride, chloride, bromide and iodide, or sulfates such asCH.sub.3 SO.sub.4.sup.-,c. R', R" and R'" correspond to the following definitions:1. R' is an alkyl radical containing from 1 to 8 atoms of carbons, in which eventI. R" and R'" can be either the same as R' or different, namely, alkyl radicals containing from 1 to 8 atoms of carbon. R" and R'" can also be cycloalkyl radicals containing from 5 to 10 carbon atoms or alkenyl radicals containing from about 3 to 8 atoms of carbon, or cycloalkenyl radicals containing from 5 to 9 atoms of carbon, or ayrl radicals.Ii.
    Type: Grant
    Filed: June 16, 1976
    Date of Patent: December 13, 1977
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Jean-Pierre Lalu
  • Patent number: 4059626
    Abstract: Compound of the formula: ##STR1## in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, alkyl, alkoxy, chlorine or bromine and the alkyl and alkoxy each contain up to two carbon atoms capable of being used as intermediate products for preparing dyestuffs, pharmaceutical products or phytopharmaceutical products.
    Type: Grant
    Filed: March 26, 1975
    Date of Patent: November 22, 1977
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Jacques Pierre Edmond Pechmeze, Robert Frederic Michel Sureau
  • Patent number: 4059629
    Abstract: The invention comprises perfluoroalkyl substituted amines of the formula ##STR1## wherein n is an integer from 1 to about 20, m is an integer between 2 or 4, R.sup.1 and R.sup.2 each is a hydrogen atom or a lower alkyl containing 1 to 3 carbon atoms and R.sup.3 and R.sup.4 each is a hydrogen atom, an alkyl containing 1 to 20 carbon atoms, an alkenyl containing 3 to 10 carbon atoms, a cycloparaffin radical containing 3 to 12 carbon atoms, a cycloalkenyl radical containing 5 to 12 carbon atoms, and N or O ring substituted cycloalkenyl radical containing 5 to 12 carbon atoms, or an aryl, or R.sup.3 or R.sup.4 are joined in the form of an alkylene radical of the formula--(CHR).sub.p --wherein p is an integer from 2 to 6 and R is a hydrogen atom or a lower alkyl containing 1 to 3 carbon atoms. These compounds are prepared by reacting at a temperature in the range between 0.degree. to 200.degree. C. perfluoroalkyl halides of the formulaC.sub.n F.sub.2n+1 (CR.sup.1 R.sup.2).sub.m Y (II)wherein n, m, R.sup.1 and R.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: November 22, 1977
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Jean-Pierre Lalu
  • Patent number: 4000168
    Abstract: This invention relates to carboxylated polyfluoroamine compounds of the general formula ##STR1## wherein the radical C.sub.n F.sub.2n.sub.+1 -- is a straight or branched perfluorinated chain, n is an integer from 1 to 20, a is an integer from 2 to 10, p is an integer from 1 to 10, R.sup.2 and R.sup.3 each is an alkyl radical containing from 1 to 6 carbon atoms and R.sup.1 is a hydrogen atom or an alkyl radical containing from 1 to 6 carbon atoms and the process for their preparation.
    Type: Grant
    Filed: August 6, 1974
    Date of Patent: December 28, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Rene Bertocchio, Louis Foulletier, Jean-Pierre Lalu
  • Patent number: 4000175
    Abstract: This invention relates to new products of the general formula: ##STR1## wherein C.sub.n F.sub.2n.sub.+1 represents a straight or branched perfluorinated hydrocarbon chain in which n is a number between 1 and 20; a is an even number having the value 2 or 4; R represents a hydrogen atom or the methyl radical; Z represents an alkyl hydrocarbon radical containing from 1 to 8 carbon atoms, or the radical -- CH.sub.2 -- CHOHR, or a cycloalkyl hydrocarbon radical containing from 5 to 9 carbon atoms or an aryl hydrocarbon radical containing from 6 to 10 carbon atoms; R' represents an alkyl hydrocarbon radical containing from 1 to 9 carbon atoms; and X is an anion which can be a halide, a sulphate, or an alkyl sulphate. These products are useful as surface active agents.
    Type: Grant
    Filed: May 20, 1970
    Date of Patent: December 28, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Jean-Pierre Lalu
  • Patent number: 3997604
    Abstract: This invention comprises perfluoroaliphatic substituted amino compounds of the formula ##STR1## wherein n is an integer from 6 to 20, m is 2 or 4, R.sup.1 and R.sup.2 each is hydrogen atom or a lower alkyl with 1 to 3 carbon atoms, R.sup.3 is a hydrogen atom, an alkyl containing 1 to 29 carbon atoms, an alkenyl containing 3 to 10 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, a cycloalkenyl with 5 to 12 carbon atoms, an N or O ring substituted cycloalkenyl radical containing 5 to 12 carbon atoms, an aryl, the radical --(CHR).sub.1 --OH wherein R is a hydrogen atom or a lower alkyl containing 1 to 3 carbon atoms, and R.sup.4 is a hydrogen atom or a methyl group and the method for preparing the same. This invention also comprises perfluoroaliphatic substituted amino compounds of the formula ##STR2## and mixtures of products of formula II with compounds of the formula ##STR3## and the method for preparing the same. The compounds are strong oleophobic and hydrophobic agents.
    Type: Grant
    Filed: April 29, 1971
    Date of Patent: December 14, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Jean-Pierre Lalu
  • Patent number: 3989843
    Abstract: Aqueous emulsions of polyfluorinated organic compounds useful as physiological transporters of oxygen, particularly in saline solutions isotonic with blood, are prepared by a method which comprises mixing a polyfluorinated compound with water or aqueous saline solution in the presence of at least one predominantly lipophilic polyfluorinated emulsifier and also at least one predominantly hydrophilic polyfluorinated emulsifier.
    Type: Grant
    Filed: October 22, 1974
    Date of Patent: November 2, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Pierre Chabert, Louis Foulletier, Andre Lantz
  • Patent number: 3941705
    Abstract: A surface-active fluorinated composition characterized by the association therein of from 35% to about 60% of at least one surface-active ampholyte compound of the formula ##EQU1## wherein n is an integer between 1 and 20, a is a number between 2 and 10, R.sub.1 is an atom of hydrogen or an alkyl radical containing from 1 to 6 atoms of carbon, R.sub.2 and R.sub.3 are alkyl radicals containing from 1 to 3 atoms of carbon, at least one of which is the methyl radical and p and q are integers between 0 and 10; from about 20% to about 40% of at least one surface-active fluorinated non-ionic compound of the formulaC.sub.n F.sub.2n.sub.+1 -- (CH.sub.2).sub.a -- CO--O--(CH.sub.2 --CH.sub.2 --O).sub.m R.sub.4wherein n and a have the same meaning as above, m is an integer between 1 and 20 and R.sub.4 is an alkyl radical containing from 1 to 6 atoms of carbon; and from about 8% to about 40% of at least one amine salt compound of the formula ##EQU2## wherein X is the group CO or SO.sub.2 R.sub.1, R.sub.5 and R.sub.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: March 2, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Louis Foulletier, Rene Bertocchio