Patents by Inventor Pierre Dufaure

Pierre Dufaure 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).

  • Anti-solar acrylamide derivative polymers, method of making the same and cosmetic compositions containing the same
    Patent number: 4233430
    Abstract: An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##STR1## wherein F is a residue derived from an aromatic compound. The anti-solar polymer can also be one having in the macromolecular chain thereof at least one unit of the formula ##STR2## wherein F.sub.1 is ##STR3## These polymers have the ability to absorb wave lengths of light in the range of about 280-315 millimicrons. The polymers are employed in a cosmetic composition.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: November 11, 1980
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieu
  • Anti-solar polymers, method of making the same and cosmetic compositions containing the same
    Patent number: 4166109
    Abstract: An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##STR1## wherein F is a residue derived from an aromatic compound. The anti-solar polymer can also be one having in the macromolecular chain thereof at least one unit of the formula ##STR2## wherein F.sub.1 is ##STR3## These polymers have the ability to absorb wave lengths of light in the range of about 280-315 millimicrons. The polymers are employed in a cosmetic composition.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: August 28, 1979
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieu
  • Anti-solar polymers, method of making the same and cosmetic compositions containing the same
    Patent number: 4107290
    Abstract: An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##STR1## wherein F is a residue derived from an aromatic compound. The anti-solar polymer can also be one having in the macromolecular chain thereof at least one unit of the formula ##STR2## wherein F.sub.1 is ##STR3## These polymers have the ability to absorb wave lengths in the range of about 280-315 millimicrons. The polymers are employed in a cosmetic composition.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: August 15, 1978
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieu
  • Anti-inflammatory polymers, pharmaceutical compositions containing the same and process for producing said polymers
    Patent number: 4003990
    Abstract: A polymer has on its macromolecular chains in the form of a lateral branching an anti-inflammator residue having a carboxylic acid function chemically linked to the macromolecular chains by an intermediate covalent function.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: January 18, 1977
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieux
  • Anti-solar polymers and copolymers from vinyloxycarbonyl-methyl 4-N,N-dimethylamino benzoate and vinyloxycarbonyl-methyl-4-methoxy cinnamate monomeas, method of making the same and cosmetic compositions containing the same
    Patent number: 3992356
    Abstract: An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##EQU1## wherein F is a residue derived from an aromatic compound imparting to the polymer the ability to absorb wave lengths of light in the range of about 280-315 millimicrons. The polymer is employed in a cosmetic composition.
    Type: Grant
    Filed: June 27, 1973
    Date of Patent: November 16, 1976
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieux
  • Anti-solar polymers, method of making the same and cosmetic compositions containing the same
    Patent number: 3980617
    Abstract: An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##EQU1## wherein F is a residue derived from an aromatic compound imparting to the polymer the ability to absorb wave lengths of light in the range of about 280-315 millimicrons. The polymer is employed in a cosmetic composition.
    Type: Grant
    Filed: June 27, 1973
    Date of Patent: September 14, 1976
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieux
  • Heterocyclic aluminum compounds and process for their preparation
    Patent number: 3956352
    Abstract: A heterocyclic aluminum compound of the formula ##EQU1## wherein n is 1 or 2. When n is 1, Z is --CH=CH--. When n is 2, Z is either --(CH.sub.2).sub.m wherein m is 0-6, or a heteroatom selected from --O--, --S--, >SO, >SO.sub.2 or >N--COR' where R' is an aliphatic hydrocarbon of 1-17 carbon atoms, --(CH.sub.2).sub.q --C.sub.6 H.sub.5 where q is 0 or 1, styryl, diphenyl methyl or phenyl optionally substituted by chlorine, fluorine, methyl and alkoxy having 1-4 carbon atoms. The compound can be prepared by reacting isopropyl aluminate with an .omega.-diol of the formula ##EQU2## wherein Z has the meaning given above and then reacting the resulting product with dry HCl or an acyl chloride of the formula R'--COCl wherein R' has the meaning given above. The heterocyclic aluminum compound exhibits antiperspirant activity. It can be used in cosmetic antiperspirant compositions comprising a cosmetic vehicle and about 0.2-30 weight percent thereof based on the weight of said composition.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: May 11, 1976
    Assignee: L'Oreal
    Inventors: Claude Bouillon, Pierre Dufaure, Georges Rosenbaum
  • Anti-inflammatory polymers, pharmaceutical compositions containing the same and process for producing said polymers
    Patent number: 3946035
    Abstract: A polymer has on its macromolecular chains in the form of a lateral branching an anti-inflammator residue having a carboxylic acid function chemically linked to the macromolecular chains by an intermediate covalent function.
    Type: Grant
    Filed: June 27, 1973
    Date of Patent: March 23, 1976
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieux