Patents by Inventor Christos Papantoniou

Christos Papantoniou 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: 4426375
    Abstract: Cosmetic compositions for the hair and skin are described which are characterized in that they contain a polymer which comprises recurring units having the general formula ##STR1## in which: k is 0 or 1, and l=1 if k=0, or l=0 if k=1,p=0 or 1 and the radicals R.sub.1 to R.sub.5 represent various specified organic radicals.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: January 17, 1984
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Jean Mondet
  • Patent number: 4425326
    Abstract: Anhydrous nail varnishes are disclosed which contain a copolymer of:(1) at least one unsaturated polar monomer of the formula: ##STR1## in which: R.sub.1 represents H, --CH.sub.3 or --CH.sub.2 COOH; such that if R.sub.1 represents H, R.sub.2 represents either(a) H, in which case R.sub.3 represents:(i) --COOH(ii) --SO.sub.3 H ##STR2## or (vi) --COOR.sub.4,R.sub.4 representing a glycidyl radical, a mono- or di-hydroxy-alkyl radical, the alkyl radical having from 2 to 4 carbon atoms, or the radical --(CH.sub.2 --CH.sub.2 --C)l--R', R' representing a methyl or ethyl radical and l representing 3 or 4, or(b) --COOH, in which case R.sub.3 represents:(vii) --CO.sub.2 R.sub.5 or(viii) --CONHR.sub.5R.sub.5 representing H or an alkyl radical having from 1 to 4 carbon atoms; and if R.sub.1 represents --CH.sub.3 or --CH.sub.2 COOH, R.sub.2 represents H and R.sub.3 represents --COOH or --COOR.sub.4 ;(2) at least one methacrylate monomer of the formula: ##STR3## in which: R.sub.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: January 10, 1984
    Assignee: Societe Anonyme dite : L'Oreal
    Inventors: Michel Guillon, Jean Mondet, Christos Papantoniou, Claudine Vandenbossche
  • Patent number: 4409379
    Abstract: Vinyl acetate and an unsaturated acid are copolymerized in the presence of bis (4-tert. butyl cyclohexyl) peroxydicarbonate. The resulting copolymer which exhibits improved aerosol propellant solubility characteristics is employed in aerosol hair lacquer compositions.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: October 11, 1983
    Assignee: L'Oreal
    Inventors: Quintino Gaetani, Bernard Jacquet, Claude Mahieu, Christos Papantoniou
  • Patent number: 4403070
    Abstract: Copolymers having tertiary amine groups and composed of 16-43% methyl methacrylate, 25-54% dimethylamino ethyl methacrylate and 12-52% octadecyl methacrylate are particularly useful as hair treating resins with conventional carriers and additives. The copolymers can be crosslinked by up to 0.15 by an unsaturated agent to produce preferred copolymers used in wave-setting lotions in amounts of 1-3%. Such copolymers can also be partially or wholly quaternized by a quaternizing agent. Those copolymers not crosslinked are particularly useful as hair lacquers, especially in aerosol sprays in amounts of 1-4%. The molecular weight for the subject copolymers averages 10,000-1,500,000 and copolymerization can be effected in a solvent with a catalyst wherein the reaction mixture is heated for about 6 to 24 hours at about 80.degree. C. When applied to the hair, the amount of lotion or lacquer used can be 10-100 c.c. and the treated hair is rolled. After treatment, the hair holds its shape well and is easy to comb.
    Type: Grant
    Filed: January 4, 1979
    Date of Patent: September 6, 1983
    Inventors: Annie Madrange nee Dermain, Christos Papantoniou
  • Patent number: 4376114
    Abstract: The copolymer of N-vinyl pyrrolidone and a vinylic, allylic or methallylic ester of a cyclic .alpha.- or .beta.- carboxylic acid is employed as a cosmetic film forming resin in cosmetic compositions for the hair, including hair setting lotions and lacquers, hair rinses and shampoos.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: March 8, 1983
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Guy Vanlerberghe, Jean Mondet
  • Patent number: 4367220
    Abstract: Cosmetic compositions, particularly lipsticks, which contain essentially: (1) at least one liposoluble polymer having vinyl ester units; (2) at least 10% by weight 1-docosanoyloxy-3-(2-ethyl)-hexyloxy-2-propanol or a compound of the formula: ##STR1## wherein: R represents a radical derived from lanolin alcohol R' represents the radical C.sub.10 H.sub.21 and n is 1.5;(3) at least one fatty body; and (4) at least one non-toxic coloring material. Processes for preparing such compositions, and particularly for preparing 1-docosanoyloxyl-(2-ethyl)-3-hexyloxy-2-propanol are also disclosed.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: January 4, 1983
    Assignee: L'Oreal
    Inventors: Jean Boulogne, Michel Guillon, Christos Papantoniou
  • Patent number: 4366099
    Abstract: A process for reducing the volatility and improving the emulsifying power of an unsaturated or saturated cosmetic oil comprising heating the cosmetic oil, in the absence of a solvent and under an inert atmosphere, with a homopolymerizable and hydrophilic monomer in the presence of an initiator generating free radicals. The monomer is selected from the group consisting of N-vinylpyrrolidone, 2-hydroxymethyl acrylate, 2-hydroxymethyl methacrylate, acrylamide, methacrylamide, N-hydroxymethyl acrylamide, N-(carboxyhydroxy) methacrylamide, acrylic acid, methacrylic acid, 2-vinylpyridine, 4-vinylpyridine and a monomer having the formula, ##STR1## wherein R is hydrogen or methyl, Y is O or NH, r' is methyl or ethyl and n is 2 or 3. The resulting modified oil is then purified to remove any insoluble nongrafted homopolymer.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: December 28, 1982
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Quintino Gaetani, Christos Papantoniou
  • Patent number: 4363797
    Abstract: Novel polymers useful, in particular, in cosmetic compositions for application to the hair are described.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: December 14, 1982
    Assignee: Societe Anonyme dite: l'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Gerard Land, Serge Forestier
  • Patent number: 4348380
    Abstract: A cosmetic composition for the care of the hair and the skin comprises a cosmetic vehicle and at least one copolymer having one or both of tertiary amine and quaternary ammonium functions. The copolymer, which can have a molecular weight between 2,000 and 500,000 is present in the composition in an amount between 0.01 and 15 percent by weight thereof.
    Type: Grant
    Filed: August 14, 1979
    Date of Patent: September 7, 1982
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Jean Mondet
  • Patent number: 4339561
    Abstract: Unsaturated compounds corresponding to the following formula: ##STR1## in which: R' represents a hydrogen atom or a methyl radical are provided as antioxidant monomers from which antioxidant polymers can be prepared.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: July 13, 1982
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Claude Mahieu, Christos Papantoniou
  • Patent number: 4324780
    Abstract: A cosmetic composition comprises a cosmetic vehicle and from 0.5-10 percent by weight of at least one copolymer having the formula ##STR1## wherein B represents Na, K, NH.sub.4, ##STR2## or 2-amino-2-methyl propanol-1; R.sub.1 and R.sub.2 each independently represent hydrogen or --(X)--OH; X represents alkylene having 1-3 carbon atoms or alkylene substituted by at least one hydroxymethyl; M represents at least one unsaturated monomer selected from acrylamides or methacrylamides substituted on the nitrogen by alkyl, the acrylates or methacrylates of monoalkyl ether of ethylene glycol or of polyethylene glycol, and N-vinylpyrrolidone; x is 22-64 mole percent, y is 13-71 mole percent, z is 6-23 mole percent, v is 0-22 mole percent, and x+y+z+v is equal to 100 mole percent.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: April 13, 1982
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Claude Mahieu, Christos Papantoniou
  • Patent number: 4321348
    Abstract: A copolymer of N-vinyl pyrrolidone and a vinylic, allylic or methallylic ester of a cyclic .alpha.- or .beta.-carboxylic acid is employed as a cosmetic film forming resin in cosmetic compositions for the hair, including hair setting lotions and lacquers, hair rinses and shampoos.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: March 23, 1982
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Guy Vanlerberghe, Jean Mondet
  • Patent number: 4289752
    Abstract: The present invention has for its object novel copolymers with a base of N-alkyl acrylamide or methacrylamide and their uses in cosmetics particularly in setting lotions and lacquer and in other preparations such as, for example, nail polish.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: September 15, 1981
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Claude Mahieu, Christos Papantoniou
  • Patent number: 4287172
    Abstract: Cosmetic compositions for the hair and skin are described which are characterized in that they contain a polymer which comprises recurring units having the general formula: ##STR1## in which: k is 0 or 1, and l=1 if k=0, or l=0 if k=1,p=0 or 1 and the radicals R.sub.1 to R.sub.5 represent various specified organic radicals.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: September 1, 1981
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Jean Mondet
  • Patent number: 4283384
    Abstract: A cosmetic composition for application to the hair or skin comprises in an appropriate cosmetic vehicle at least one polymer produced by polymerizing an unsaturated monomer and a compound having at least one OH function, the said polymerization being carried out in an aqueous medium and in the presence of cerium ions.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: August 11, 1981
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Jean Mondet, Christos Papantoniou
  • Patent number: 4282203
    Abstract: A cosmetic composition comprises a cosmetically acceptable vehicle and at least one copolymer having units of a vinyl, allyl or methally ester of an .alpha.- or .beta.-cyclic carboxylic acid. A process for producing the said copolymer comprises reacting the monomeric constituents of the copolymer at a temperature between 45.degree.-100.degree. C. for a period ranging from 6 to 24 hours.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: August 4, 1981
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Christos Papantoniou, Guy Vanlerberghe, Claude Mahieu, Vahan Zorayan
  • Patent number: 4281192
    Abstract: Unsaturated compounds corresponding to the following formula: ##STR1## in which: R' represents a hydrogen atom or a methyl radical are provided as antioxidant monomers from which antioxidant polymers can be prepared.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: July 28, 1981
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Claude Mahieu, Christos Papantoniou
  • Patent number: 4272511
    Abstract: This invention relates to cosmetic tetrapolymer or higher polymer compositions useful as lacquers and setting lotions.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: June 9, 1981
    Assignee: L'Oreal
    Inventors: Christos Papantoniou, Jean Mondet
  • Patent number: 4237253
    Abstract: Copolymers having the formula ##STR1## where B represents Na, K, NH.sub.4, ##STR2## or 2-amino-2-methylpropanol-1, R.sub.1 and R.sub.2 represent hydrogen or -(X) OH; X represents an alkylene having 1-3 carbon atoms or alkylene substituted by at least one hydroxy methyl, M represents at least one unsaturated monomer selected from acrylamides or methacrylamides substituted on the nitrogen by alkyl, the acrylates or methacrylates of monoalkyl ether of ethylene glycol or of polyethylene glycol, and N-vinylpyrrolidone, x is 22-64 mole percent, y is 13-71 mole percent, z is 6-23 mole percent, v is 0-22 mole percent and x+y+z+v is equal to 100 mole percent, can be produced by copolymerizing N,N-dimethylamino-2 ethyl methacrylate, methyl methacrylate, methacrylic acid and optionally at least one other monomer corresponding to M.
    Type: Grant
    Filed: April 18, 1978
    Date of Patent: December 2, 1980
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Claude Mahieu, Christos Papantoniou
  • 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