	US 11,980,682 B2
	Composition for dyeing keratin fibres, comprising at least one copolymer derived from the polymerization of at least one crotonic acid monomer and of at least one vinyl ester monomer and a fatty amine
David Seneca, Saint-Ouen (FR); Lindsay Menzer, Saint-Ouen (FR); Malayphone Sananikone, Saint-Ouen (FR); and Delphine Charrier, Saint-Ouen (FR)
Assigned to L'OREAL, Paris (FR)
Appl. No. 16/975,871
Filed by L'OREAL, Paris (FR)
PCT Filed Jun. 18, 2019, PCT No. PCT/EP2019/066047 § 371(c)(1), (2) Date Aug. 26, 2020, PCT Pub. No. WO2020/002051, PCT Pub. Date Jan. 20, 2020.
Claims priority of application No. 1855867 (FR), filed on Jun. 28, 2018.
Prior Publication US 2020/0405616 A1, Dec. 31, 2020
Int. Cl. A61Q 5/10 (2006.01); A61K 8/44 (2006.01); A61K 8/81 (2006.01); A61K 8/892 (2006.01); A61K 8/898 (2006.01); A61Q 5/06 (2006.01)

CPC A61K 8/8147 (2013.01) [A61K 8/442 (2013.01); A61K 8/892 (2013.01); A61K 8/898 (2013.01); A61Q 5/065 (2013.01); A61K 2800/43 (2013.01); A61K 2800/48 (2013.01)]

16 Claims

1. A cosmetic composition comprising:

a) at least one copolymer derived from the polymerization of at least one crotonic acid monomer or crotonic acid derivative, and of at least one vinyl ester monomer;

b) at least one fatty amine chosen from fatty amidoamines having the formula (L) below:

RCONHR″N(R′)₂(L)

wherein:

R is chosen from monovalent hydrocarbon-based radicals containing from 5 to 29 carbon atoms;

R″, which may be identical or different, is chosen from divalent hydrocarbon-based radicals containing less than 6 carbon atoms; and

R″, which may be identical or different, is chosen from linear or branched, saturated or unsaturated, or substituted or unsubstituted monovalent hydrocarbon-based radicals containing less than 6 carbon atoms, or mixtures thereof; and

c) at least one pigment,

wherein the cosmetic composition further comprises:

at least one non-amino silicone;

at least one amino silicone; and

at least one non-silicone fatty substance other than fatty amines, present in a content ranging from 0.1 to 10% by weight relative to the total weight of the composition.