Patent ID: 11938205
Assignee: L'OREAL
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 2:
3. Composition according to claim 1, wherein the surfactant comprises one or more amphoteric surfactants, wherein amphoteric surfactants are chosen from:
(C8-C20)alkylbetaines, sulfobetaines, (C8-C20 alkyl)amido(C2-C8 alkyl)betaines and (C8-C20 alkyl)amido(C2-C8 alkyl)sulfobetaines;
quaternized secondary or tertiary aliphatic amine derivatives of formula (III) or (IV):

Ra—CON(Z)CH2-(CH2)m—N+(Rb)(Rc)(CH2COO−)   (III)

in which:
Ra represents a C10-C30 alkyl or alkenyl group derived from an acid Ra—COOH, a heptyl group, a nonyl group or an undecyl group,
Rb represents a β-hydroxyethyl group,
Rc represents a carboxymethyl group;
m is equal to 0, 1 or 2,
Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group;

Ra′—CON(Z)CH2-(CH2)m′—N(B)(B′)   (IV)

in which:
B represents —CH2CH2OX′, with X′ representing —CH2—COOH, CH2—COOZ′, —CH2CH2—COOH, —CH2CH2—COOZ′, or a hydrogen atom,
B′ represents —(CH2)z—Y′, with z=1 or 2, and Y′ representing —COOH, —COOZ′, —CH2—CHOH—SO3H or —CH2—CHOH—SO3Z′,
m′ is equal to 0, 1 or 2,
Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group,
Z′ represents an ion resulting from an alkali or alkaline-earth metal, an ammonium ion, or an ion resulting from an organic amine,
Ra′ represents a C10-C30 alkyl, alkenyl group of an acid Ra′COOH, or an alkyl group;
compounds of formula (V):

Ra″—NH—CH(Y″)—(CH2)n-C(O)—NH—(CH2)n′-N(Rd)(Re)  (V)

in which:
Ra″ represents a C10-C30 alkyl or alkenyl group of an acid Ra″—C(O)OH;
Y″ represents the group —C(O)OH, —C(O)OZ″, —CH2—CH(OH)—SO3H, or the group —CH2—CH(OH)—SO3—Z″, with Z″ representing a cationic counterion resulting from an alkali metal or alkaline-earth metal, an ammonium ion or an ion resulting from an organic amine;
Rd and Re represent, independently of each other, a C1-C4 alkyl or hydroxyalkyl radical; and
n and n′ denote, independently of each other, an integer ranging from 1 to 3.