Patents by Inventor Didier Candau

Didier Candau 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).

  • Sunscreen compositions comprising lipophilic UV-screening agents and hydroxyalkylurea compounds
    Publication number: 20060177393
    Abstract: Cosmetic, notably anti-sun/sunscreen compositions having increased sun protection effectiveness and improved distribution over keratin materials, e.g., human skin, contain at least one fatty phase and at least one system for screening out UV radiation, and also contain: (a) at least one lipophilic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 10, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Sunscreen compositions comprising hydrophilic UV-screening agents and hydroxyalkylurea compounds
    Publication number: 20060177395
    Abstract: Cosmetic, notably anti-sun/sunscreen emulsion compositions having increased sun protection effectiveness and improved distribution over keratin materials, e.g., human skin, contain at least one system for screening out UV radiation, and also contain: (a) at least one hydrophilic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable emulsion therefor.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 10, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Sunscreen compositions comprising metal oxide mineral pigments and hydroxyalkylurea compounds
    Publication number: 20060177396
    Abstract: Cosmetic, notably anti-sun/sunscreen compositions having reduced whitening effect on keratin materials, e.g., human skin, contain at least one system for screening out UV radiation, and also contain: (a) at least one metal oxide mineral pigment, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1—R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 10, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Sunscreen compositions comprising insoluble organic UV-screening agents and hydroxyalkylurea compounds
    Publication number: 20060177394
    Abstract: Cosmetic, notably anti-sun/sunscreen compositions having improved comfort after application onto keratin materials, e.g., human skin, contain at least one system for screening out UV radiation, and also contain: (a) at least one insoluble organic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 10, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Self-tanning product comprising two components and means for artificially coloring the skin
    Publication number: 20060177397
    Abstract: Self-tanning products for the skin, including compartmentalized kits therefor, comprise at least two components (A) and (B) comprising: a first component (A) containing, formulated into a cosmetically acceptable medium, at least one self-tanning agent, and a second component (B) containing, also formulated into a cosmetically acceptable medium, at least one hydroxyalkylurea of formula (I) in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate, or isomer thereof; the components (A) and (B) being present in the same composition or confined separately.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 10, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Photostable photoprotective compositions comprising dibenzoylmethane and arylalkyl benzoate compounds and a compound that accepts the excited triplet level energy of said dibenzoylmethane(s)
    Publication number: 20060104924
    Abstract: Topically applicable, improvedly photostabilized, photoprotective cosmetic/dermatological compositions contain (i) an effective UV-screening amount of at least one dibenzoylmethane sunscreen and an effective photostabilizing amount of (ii) at least one arylalkyl benzoate compound and (iii) at least one compound accepting the excited triplet level energy of said at least one dibenzoylmethane sunscreen, formulated into (iv) a topically applicable, cosmetically/dermatologically acceptable support therefor.
    Type: Application
    Filed: October 14, 2005
    Publication date: May 18, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Photoprotective/cosmetic compositions comprising sulfonic/hydrophobic amphiphilic polymers
    Patent number: 7045120
    Abstract: Photoprotective cosmetic/dermatological compositions well suited for the UV-photoprotection of human skin and/or hair, comprise (a) particulates of at least one insoluble mineral and/or organic UV-screening agent having a particle size ranging from 5 nm to 5 ?m and (b) a stabilizing amount of at least one amphiphilic polymerizate of at least one ethylenically unsaturated monomer which comprises a sulfonic group, whether in the free acid or in partially or totally neutralized state, and which amphiphilic polymerizate also comprises at least one hydrophobic moiety.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: May 16, 2006
    Assignee: L'Oreal
    Inventors: Karl Boutelet, Didier Candau
  • Photostable photoprotective compositions comprising dibenzoylmethane and amide oil compounds and a compound that accepts the excited triplet level energy of said dibenzoylmethane(s)
    Publication number: 20060083698
    Abstract: Topically applicable, improvedly photostabilized, photoprotective cosmetic/dermatological compositions contain (i) an effective UV-screening amount of at least one dibenzoylmethane sunscreen and an effective photostabilizing amount of (ii) at least one oil containing at least one amide structural unit and (iii) at least one compound accepting the excited triplet level energy of said at least one dibenzoylmethane sunscreen, formulated into (iv) a topically applicable, cosmetically/dermatologically acceptable support therefor.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 20, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Photostable photoprotective compositions comprising dibenzoylmethane and bis-resorcinyl triazine compounds and a compound that accepts the excited triplet level energy of said dibenzoylmethane(s)
    Publication number: 20060083699
    Abstract: Topically applicable, improvedly photostabilized, photoprotective cosmetic/dermatological compositions contain (i) an effective UV-screening amount of at least one dibenzoylmethane sunscreen and an effective photostabilizing amount of (ii) at least one bis-resorcinyl triazine compound and (iii) at least one compound accepting the excited triplet level energy of said at least one dibenzoylmethane sunscreen, notably at least one 4-hydroxybenzylidenemalonate compound, 4-hydroxycinnamate compound, fluorene compound, piperidinol salt, or mixture thereof, formulated into (iv) a topically applicable, cosmetically/dermatologically acceptable support therefor.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 20, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Artificial tanning emulsions comprising sorghum extracts/organomodified silicones
    Patent number: 7012101
    Abstract: Topically applicable, cosmetic/dermatological artificial tanning emulsions devoid of certain flavylium salts include (a) at least one aqueous phase and (b) at least one fatty phase, (c) an effective artificial tanning amount of at least one sorghum extract, and (d) at least one organomodified silicone.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: March 14, 2006
    Assignee: L'Oreal
    Inventors: Nathalie Seyler, Iréne Elguidj, Didier Candau
  • Photostable UV-screening compositions comprising dibenzoylmethane/diarylbutadiene compounds
    Patent number: 6994844
    Abstract: Topically applicable, photostable cosmetic/dermatological UV-screening compositions comprise (a) at least one photolabile UV-screening dibenzoylmethane compound and (b) a dibenzoylmethane photostabilizing amount of at least one 4,4-diarylbutadiene compound, formulated into a topically applicable, cosmetically/dermatologically acceptable support therefor; the weight ratio of the 4,4-diarylbutadiene compound(s) to the diarylbutadiene compound(s) is characteristically greater than 2.5 and the subject compositions are advantageously devoid of any cinnamate sunscreen.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: February 7, 2006
    Assignee: L'OREAL
    Inventor: Didier Candau
  • Photostabilization of dibenzoylmethane UV-screening agents with arylalkyl benzoate compounds and photoprotective cosmetic compositions comprised thereof
    Publication number: 20060008430
    Abstract: Topically applicable cosmetic/dermatological photoprotective compositions contain at least one dibenzoylmethane UV-screening agent, and, as a photostabilizer therefor, at least one arylalkyl benzoate compound of formula (I) or (II) below: with the proviso that: (i) the subject compositions are characteristically devoid of any octyl methoxycinnamate; and (ii) same are other than a solution of butyl methoxydibenzoylmethane in 2-phenylethyl benzoate, 2-phenylethyl o-toluate, 2-phenylethyl p-toluate or in a 2-phenylethyl o-toluate/2-phenylethyl p-toluate (1/1) mixture.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 12, 2006
    Applicant: L'OREAL
    Inventor: Didier Candau
  • Photostabilization of dibenzoylmethane UV-screening agents with arylalkyl benzoate/bis-resorcinyl triazine compounds and photoprotective compositions comprised thereof
    Publication number: 20060008429
    Abstract: Topically applicable, photostable compositions with respect to UV radiation contain at least one dibenzoylmethane UV-screening agent and at least one arylalkyl benzoate compound and at least one bis-resorcinyl triazine compound.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 12, 2006
    Inventor: Didier Candau
  • Solubilization of triazine UV-screening agents with arylalkyl benzoate compounds/amide-based oils and photoprotective compositions comprised thereof
    Publication number: 20060002872
    Abstract: Topcially applicable photoprotective compositions having improved sun protection factor, cosmetic properties and/or stability contain: (a) at least one 1,3,5-triazine UV-screening agent, (b) at least one mixture including: (i) at least one arylalkyl benzoate compound, and (ii) at least one oil containing in its structure at least one amide unit.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 5, 2006
    Applicant: L'OREAL
    Inventors: Didier Candau, Cecile Fiandino
  • Photostabilization of dibenzoylmethane UV-screening agents with arylalkyl benzoate compounds/amide-based oils and photoprotective compositions comprised thereof
    Publication number: 20060002873
    Abstract: Topically applicable, photostable compositions with respect to UV radiation contain at least one dibenzoylmethane UV-screening agent and at least one arylalkyl benzoate compound and at least one amide-based oil.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 5, 2006
    Inventor: Didier Candau
  • Photoprotective compositions comprising sulfonic/hydrophobic amphiphilic polymers
    Patent number: 6955803
    Abstract: Photoprotective cosmetic/dermatological compositions well suited for the UV-photoprotection of human skin and/or hair, comprise (a) at least one organic UV-screening agent and (b) an SPF-improving amount of at least one amphiphilic polymerizate of at least one ethylenically unsaturated monomer which comprises a sulfonic group, whether in the free acid or in partially or totally neutralized state, and which amphiphilic polymerizate also comprises at least one hydrophobic moiety.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: October 18, 2005
    Assignee: L'Oreal
    Inventors: Karl Boutelet, Didier Candau
  • Aqueous antisun/sunscreen compositions comprising amphiphilic 2-acrylamidomethylpropanesulfonic acid polymers and water-soluble silicones
    Patent number: 6902722
    Abstract: Photoprotective compositions well suited for the photoprotection of the skin, lips and/or hair against the damaging effect of UV-radiation comprise at least one aqueous phase and at least one system for screening out UV-radiation, and which also contain: (a) at least one partially or totally neutralized, crosslinked or non-crosslinked amphiphilic polymer of 2-acrylamidomethylpropanesulfonic acid (AMPS), and (b) at least one water-soluble silicone comprising at least one terminal or pendent monovalent polyoxyalkylene group.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: June 7, 2005
    Assignee: L'Oreal
    Inventors: Didier Candau, Karl Boutelet, Nathalie Seyler
  • Self-tanning composition containing a tetrahydrocurcuminoid and a self-tanning agent
    Patent number: 6875426
    Abstract: The present invention relates to a cosmetic and/or dermatological composition more particularly intended for artificially tanning and/or browning the skin and comprising, in a cosmetically acceptable support, at least one derivative or a mixture of derivatives of 1,7-bisphenyl heptane-3,5-dione of particular structure and at least one self-tanning agent. The present invention also relates to a cosmetic treatment process for artificially tanning or browning the skin and to the use of at least one derivative or a mixture of derivatives of 1,7-bisphenyl heptane-3,5-dione of particular structure for improving the coloration and/or stability of a self-tanning agent. The invention also relates to the uses of these compositions for giving the skin a coloration close to that of a natural skin tan.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: April 5, 2005
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Cosmetic/dermatological compositions comprising a tetrahydrocurcuminoid and an amide oil
    Patent number: 6872401
    Abstract: The invention relates to a cosmetic or dermatological composition containing a carrier comprising at least one fatty phase characterized in that it contains at least one derivative or a mixture of derivatives of 1,7-diphenyl-3,5-heptanedione having a particular structure and at least one oil having, in its structure, at least one amide unit. The invention also relates to its uses in cosmetics and dermatology, in particular for preventing or combating the harmful effects of UV radiation and pollution on human keratinous materials, and more particularly for preventing and/or treating photoaging of the skin. The invention also relates to a method for solubilizing a derivative or a mixture of derivatives of 1,7-diphenyl-3,5-heptanedione having a particular structure with at least one oil having, in its structure, at least one amide unit.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: March 29, 2005
    Assignee: L'Oreal
    Inventors: Nathalie Seyler, Cécile Fiandino, Didier Candau
  • Oil-in-water photoprotective emulsions containing gemini surfactants and associative polymers
    Publication number: 20050063925
    Abstract: Oil-in-water photoprotective emulsions containing gemini surfactants and associative polymers The invention relates to a photoprotective composition containing as liquid phase, an oil-in-water emulsion, emulsified with at least one dimeric surfactant comprising two surfactant units, which may be identical or different, each consisting of a hydrophilic head and a hydrophobic tail and connected to each other, via the hydrophilic heads, by means of a spacer group, at least one photoprotective system capable of screening out UV rays, containing at least one mineral nanopigment based on metal oxide, and optionally at least one organic, preferably hydrosoluble or liposoluble UV-A and/or UV-B screening agent, and at least one associative polymer comprising at least one C8-40 fatty chain, and also to a process for preparing such a photoprotective composition.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 24, 2005
    Applicant: L'OREAL
    Inventors: Didier Candau, Christele Gombert