Patents by Inventor Florence Chanvin

Florence Chanvin 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: 7109237
    Abstract: A water-in-oil emulsion containing ascorbic acid and, as an emulsifier, a dimethiconecopolyol or an alkyldimethiconecopolyol, where the aqueous phase having a pH ranging from 5.5 to 7.5. This emulsion allows ascorbic acid to be stabilized and can be used, in particular, in the cosmetics and/or dermatological fields. The invention also relates to a cosmetic process for treating the skin using the emulsion.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: September 19, 2006
    Assignee: L'Oreal
    Inventors: Isabelle Afriat, Florence Chanvin
  • Publication number: 20030149102
    Abstract: The invention relates to a composition containing ascorbic acid and an oily phase, characterized in that the oily phase contains a partially or totally crosslinked, solid elastomeric organopolysiloxane. The presence of the solid elastomeric organopolysiloxane makes it possible to obtain good stability of the ascorbic acid and thus good efficacy of the composition containing it. The composition can be anhydrous or be in the form of a water-in-oil or oil-in-water emulsion or a triple emulsion. It can be used in particular in the cosmetic and/or dermatological fields. The presence of the solid elastomeric organopolysiloxane also makes it possible to stabilize an emulsion containing ascorbic acid.
    Type: Application
    Filed: August 27, 2002
    Publication date: August 7, 2003
    Applicant: L'OREAL, s.a.
    Inventors: Isabelle Afriat, Florence Chanvin, Sylviane Langlois
  • Publication number: 20030045573
    Abstract: A water-in-oil emulsion containing ascorbic acid and, as an emulsifier, a dimethiconecopolyol or an alkyldimethiconecopolyol, where the aqueous phase having a pH ranging from 5.5 to 7.5. This emulsion allows ascorbic acid to be stabilized and can be used, in particular, in the cosmetics and/or dermatological fields. The invention also relates to a cosmetic process for treating the skin using the emulsion.
    Type: Application
    Filed: August 15, 2002
    Publication date: March 6, 2003
    Applicant: L'OREAL
    Inventors: Isabelle Afriat, Florence Chanvin
  • Patent number: 6465510
    Abstract: A water-in-oil emulsion containing ascorbic acid and, as an emulsifier, a dimethiconecopolyol or an alkyldimethiconecopolyol, where the aqueous phase having a pH ranging from 5.5 to 7.5. This emulsion allows ascorbic acid to be stabilized and can be used, in particular, in the cosmetics and/or dermatological fields. The invention also relates to a cosmetic process for treating the skin using the emulsion.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: October 15, 2002
    Assignee: L'Oreal
    Inventors: Isabelle Afriat, Florence Chanvin
  • Publication number: 20020119954
    Abstract: The invention relates to a composition containing ascorbic acid and an oily phase, characterized in that the oily phase contains a partially or totally crosslinked, solid elastomeric organopolysiloxane. The presence of the solid elastomeric organopolysiloxane makes it possible to obtain good stability of the ascorbic acid and thus good efficacy of the composition containing it. The composition can be anhydrous or be in the form of a water-in-oil or oil-in-water emulsion or a triple emulsion. It can be used in particular in the cosmetic and/or dermatological fields. The presence of the solid elastomeric organopolysiloxane also makes it possible to stabilize an emulsion containing ascorbic acid.
    Type: Application
    Filed: November 19, 2001
    Publication date: August 29, 2002
    Applicant: L'OREAL, s.a.
    Inventors: Isabelle Afriat, Florence Chanvin, Sylviane Langlois
  • Publication number: 20010051655
    Abstract: Emulsion Containing Ascorbic Acid and its Uses in the Cosmetics and Dermatological Fields A water-in-oil emulsion containing ascorbic acid and, as an emulsifier, a dimethiconecopolyol or an alkyldimethiconecopolyol, where the aqueous phase having a pH ranging from 5.5 to 7.5. This emulsion allows ascorbic acid to be stabilized and can be used, in particular, in the cosmetics and/or dermatological fields. The invention also relates to a cosmetic process for treating the skin using the emulsion.
    Type: Application
    Filed: March 9, 2001
    Publication date: December 13, 2001
    Applicant: L' oreal
    Inventors: Isabelle Afriat, Florence Chanvin
  • Patent number: 6239174
    Abstract: A water-in-oil emulsion containing ascorbic acid and, as an emulsifier, a dimethiconecopolyol or an alkyldimethiconecopolyol, where the aqueous phase having a pH ranging from 6.1 to 7.5. This emulsion allows ascorbic acid to be stabilized and can be used, in particular, in the cosmetics and/or dermatological fields. The invention also relates to a cosmetic process for treating the skin using the emulsion.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: May 29, 2001
    Assignee: L'Oreal
    Inventors: Isabelle Afriat, Florence Chanvin
  • Patent number: 6149900
    Abstract: A composition in the form of a water/oil/water triple emulsion comprising an outer aqueous phase and an oily phase constituting, with an inner aqueous phase, a W/O primary emulsion, the outer aqueous phase comprising, in combination, an emulsifying copolymer of carboxylic acid with a fatty chain, and a crosslinked poly(acrylamidomethylpropane-sulfonic acid). The emulsion remains stable, even in the presence of an acidic active agent, and is particularly appropriate as vehicle for water-sensitive and/or oxygen-sensitive active agents, in particular in a cosmetic or dermatological composition. The active agent can be, in particular, a vitamin, such as ascorbic acid or retinol, an enzyme and an .alpha.- or .beta.-hydroxy acid. The emulsion obtained can constitute, in particular, a composition for cleaning and/or treating and/or protecting the skin and/or mucous membranes and/or keratinous fibers.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: November 21, 2000
    Assignee: L'Oreal S.A.
    Inventors: Isabelle Afriat, Florence Chanvin, Carole Guiramand
  • Patent number: 6110476
    Abstract: A synegistic system based on a phosphonic acid derivative and on a metabisulphite, for stabilizing ascorbic acid. The invention also relates to compositions, in particular cosmetic and dermatological compositions, containing ascorbic acid and this stabilizing system, and to the use of these compositions in the cosmetics and/or dermatological fields.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: August 29, 2000
    Assignee: L'Oreal
    Inventors: Quang Lan Nguyen, Isabelle Afriat, Dang-Man Pham, Florence Chanvin