Preparation of polysaccharide betainate type compounds, compounds obtained, their use and compositions comprising them
AssigneeL'oreal
InventorsClaude Dubief, Marguerite Rinaudo, Rachel Auzely-Velty
Life of this patent
Estimating the term…
Abstract
A process for preparing compounds from the polysaccharide betainate family, novel compounds so obtained, and their use in cosmetics or in dermatology, as well as the compositions, such as cosmetic or dermatological compositions, comprising said novel compounds.
Claims28
A composition comprising, in a cosmetic or dermatologically acceptable medium, at least one compound chosen from compounds of formula (I):
- in which:
- R1, R2, and R3, which may be identical or different, are chosen from linear and branched, saturated and unsaturated C1–C30 hydrocarbon radicals optionally interrupted by at least one hetero atom chosen from N, O, and S, and/or optionally substituted with at least one radical selected from —OH, halogen, and C6–C22 aryl radicals;
- A is chosen from linear and branched, saturated and unsaturated divalent C1–C22 hydrocarbon radicals optionally interrupted by at least one hetero atom chosen from N, O, and S, and/or optionally substituted with at least one hydroxyl radical;
- X− is an anion deriving from an acid chosen from mineral and organic acids;
- and
- Y is a polysaccharide residue;
- excluding the compounds of formula (I) in which Y represents a polymeric starch structure, A is —CH2—, and R1=R2=R3=—CH3;
- and
- wherein the composition is in a form chosen from hairstyling products;
- shampoos, rinse and no-rinse compositions for application before or after shampoos, colorants, bleaches, permanent or straightening treatments;
- skin care and hygiene products for face or body;
- antisun products;
- solid preparations constituting soaps or cleaning bars;
- bucco-dental care products;
- and makeup products.
A process for cosmetic treatment of a keratinous support chosen from skin, scalp, hair, eyelashes, eyebrows, nails, and mucous membranes, comprising applying to said keratinous support a composition comprising, in a cosmetic or dermatologically acceptable medium, at least one compound chosen from compounds of formula (I):
- in which:
- R1, R1, R2, and R3, which may be identical or different, are chosen from linear and branched, saturated and unsaturated C1–C30 hydrocarbon radicals optionally interrupted by at least one hetero atom chosen from N, O, and S, and/or optionally substituted with at least one radical selected from —OH, halogen, and C6–C22 aryl radicals;
- A is chosen from linear and branched, saturated and unsaturated divalent C1–C22 hydrocarbon radicals optionally interrupted by at least one hetero atom chosen from N, O, and S, and/or optionally substituted with at least one hydroxyl radical;
- X− is an anion deriving from an acid chosen from mineral and organic acids;
- and
- Y is a polysaccharide residue;
- excluding the compounds of formula (I) in which Y represents a polymeric starch structure, A is —CH2—, and R1=R2=R3=—CH3.
Dependencies are inferred from the claim text.