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Cosmetic composition comprising at least an amidoethercarboxylic acid surfactant and at least a cationic polymer/anionic polymer combination

  • US 6,423,305 B1
  • Filed: 10/26/1999
  • Issued: 07/23/2002
  • Est. Priority Date: 12/29/1997
  • Status: Expired due to Fees
First Claim
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1. A cosmetic or dermatological composition for the treatment of a keratinous substance, comprising, in a cosmetically or dermatologically acceptable medium,at least one amido ether carboxylic acid surfactant or a salt thereof, and at least one combination of at least one noncrosslinked anionic polymer and of at least one cationic polymer;

  • wherein said at least one amido ether carboxylic acid surfactant has the structure of formula (I);

    embedded imagein whichR1 is chosen from linear and branched, alkyl and alkenyl radicals having from 5 to 23 carbon atoms, and phenyl radicals substituted by an alkyl radical having from 6 to 10 carbon atoms;

    R2 is chosen from a hydrogen atom, alkyl radicals having from 1 to 3 carbon atoms, —

    (CH2CH2O)nCH2COOM radicals, and —

    (CH2CH2O)m radicals;

    n and m, which are identical or different, are numbers from 1 to 20; and

    M is chosen from hydrogen atom, alkali metals, NH4+, and ammonium ions comprising a residue chosen from basic amino acids and aminoalcohols.

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