US-20260124128-A1 - COMPOSITION COMPRISING LARGE AMOUNT OF POLYOL

Abstract

The present invention relates to a composition comprising: (a) at least one cationic polymer, (b) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; (c) at least one polyol; and (d) water, wherein the amount of the (c) polyol(s) in the composition is 10% by weight or more, relative to the total weight of the composition. The composition according to the present invention can show reduced stickiness although it includes a large amount of polyol such as glycerin.

Inventors

• Takehiko Kasai
• Mitsuru Shimatani
• Shinobu MITSUDA
• Toshifumi Shiroya
• Tomoko Mizuno
• Tatsushi Isojima
• Mariko Yamamoto

Assignees

• L'OREAL

Dates

Publication Date

20260507

Application Date

20230915

Priority Date

20221117

Claims (15)

1. 1 . A composition, comprising: (a) at least one cationic polymer, (b) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; (c) at least one polyol; and (d) water, wherein the amount of the (c) polyol(s) in the composition is 10% by weight or more, relative to the total weight of the composition.
2. 2 . The composition according to claim 1 , wherein the (a) cationic polymer is crosslinked with the (b) non-polymeric acid having two or more pKa values or salt(s) thereof.
3. 3 . The composition according to claim 1 , wherein the (a) cationic polymer has at least one positively chargeable and/or positively charged moiety selected from the group consisting of a primary, secondary or tertiary amino group, a quaternary ammonium group, a guanidine group, a biguanide group, an imidazole group, an imino group, and a pyridyl group.
4. 4 . The composition according to claim 1 , wherein the (a) cationic polymer is selected from the group consisting of cyclopolymers of alkyldiallylamine and cyclopolymers of dialkyldiallylammonium such as (co)polydiallyldialkyl ammonium chloride, (co)polyamines such as chitosans and (co)polylysines, cationic (co)polyaminoacids such as collagen, cationic cellulose polymers, and salts thereof.
5. 5 . The composition according to claim 1 , wherein the (a) cationic polymer is selected from the group consisting of polylysines, chitosans, and mixtures thereof.
6. 6 . The composition according to claim 1 , wherein the amount of the (a) cationic polymer(s) in the composition is from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.
7. 7 . The composition according to claim 1 , wherein the (b) non-polymeric acid having two or more pKa values or salt(s) thereof is an organic acid or salt(s) thereof, preferably a hydrophilic or water-soluble organic acid or salt(s) thereof, and more preferably phytic acid or salts thereof, terephthalylidene dicamphor sulfonic acid or salts thereof, or a mixture thereof.
8. 8 . The composition according to claim 1 , wherein the amount of the (b) non-polymeric acid having two or more pKa values or salt(s) thereof in the composition is from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.
9. 9 . The composition according to claim 1 , wherein the (c) polyol is glycerin.
10. 10 . The composition according to claim 1 , wherein the amount of the (c) polyol in the composition is 95% by weight or less, relative to the total weight of the composition.
11. 11 . The composition according to claim 1 , wherein the composition further comprises (e) at least one anionic polymer.
12. 12 . The composition according to claim 11 , wherein the (e) anionic polymer is selected from polysaccharides, preferably hyaluronic acid and derivatives thereof, cellulose polymers and salts thereof, and a mixture thereof, and more preferably hyaluronic acid and salts thereof, carboxymethylcellulose and salts thereof, and a mixture thereof.
13. 13 . The composition according to claim 11 , wherein the amount of the (e) anionic polymer(s) in the composition is from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.
14. 14 . The composition according to claim 1 , wherein the composition is a cosmetic composition, preferably a care cosmetic composition, and more preferably a skin care or hair care cosmetic composition.
15. 15 . A cosmetic process for keratin substance, comprising applying to the keratin substance the composition according to claim 1 ; and drying the composition to form a cosmetic film on the keratin substance.

Description

TECHNICAL FIELD The present invention relates to a composition including a relatively large amount of polyol, as well as a cosmetic process using the composition. BACKGROUND ART A polyion complex, which may be in the form of a particle and can be formed with a cationic polymer and an anionic polymer, has already been known. For example, WO 2021/125069 discloses a composition which is useful for cosmetic treatments and comprises, in one embodiment, at least one polyion complex particle comprising at least one cationic polymer, at least one hyaluronic acid-based anionic polymer and at least one non-polymeric acid having two or more pKa values or a salt thereof. WO 2021/125069 also discloses a specific composition which includes 5% by weight of glycerin. For example, WO 2022/131351 discloses a composition which is useful for cosmetic treatments and comprises, in one embodiment, at least one polyion complex particle comprising at least one cationic polymer, at least one anionic polymer, at least one non-polymeric acid having two or more pKa values or a salt thereof, at least one filler. WO 2022/131351 also discloses specific compositions which includes 5% by weight of glycerin. DISCLOSURE OF INVENTION Polyol such as glycerin is often used for cosmetic purposes for a keratin substance such as skin. However, a composition including a large amount, i.e., 10% by weight or more relative to the total weight of the composition, of polyol such as glycerin tends to be sticky. Thus, an objective of the present invention is to provide a composition which can show reduced stickiness, while including a large amount, i.e., 10% by weight or more relative to the total weight of the composition, of polyol such as glycerin. The above objective of the present invention can be achieved by a composition, comprising: (a) at least one cationic polymer,(b) at least one non-polymeric acid having two or more pKa values or salt(s) thereof;(c) at least one polyol; and(d) water,whereinthe amount of the (c) polyol(s) in the composition is 10% by weight or more, relative to the total weight of the composition. The (a) cationic polymer may be crosslinked with the (b) non-polymeric acid having two or more pKa values or salt(s) thereof. The (a) cationic polymer may have at least one positively chargeable and/or positively charged moiety selected from the group consisting of a primary, secondary or tertiary amino group, a quaternary ammonium group, a guanidine group, a biguanide group, an imidazole group, an imino group, and a pyridyl group. The (a) cationic polymer may be selected from the group consisting of cyclopolymers of alkyldiallylamine and cyclopolymers of dialkyldiallylammonium such as (co)polydiallyldialkyl ammonium chloride, (co)polyamines such as chitosans and (co)polylysines, cationic (co)polyaminoacids such as collagen, cationic cellulose polymers, and salts thereof. It may be preferable that the (a) cationic polymer be selected from the group consisting of polylysines, chitosans, and mixtures thereof. The amount of the (a) cationic polymer(s) in the composition according to the present invention may be from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition. The (b) non-polymeric acid having two or more pKa values or salt(s) thereof may be an organic acid or salt(s) thereof, preferably a hydrophilic or water-soluble organic acid or salt(s) thereof, and more preferably phytic acid or salts thereof, terephthalylidene dicamphor sulfonic acid or salts thereof, or a mixture thereof. The amount of the (b) non-polymeric acid having two or more pKa values or salt(s) thereof in the composition according to the present invention may be from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition. It may be preferable that the (c) polyol be glycerin. The amount of the (c) polyol in the composition according to the present invention may be 95% by weight or less, relative to the total weight of the composition. The composition according to the present invention may further comprise (e) at least one anionic polymer. The (e) anionic polymer may be selected from polysaccharides, preferably hyaluronic acid and derivatives thereof, cellulose polymers and salts thereof, and a mixture thereof, and more preferably hyaluronic acid and salts thereof, carboxymethylcellulose and salts thereof, and a mixture thereof. The amount of the (e) anionic polymer(s) in the composition according to the present invention may be from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition. The composition according to the present invention may be a cosmetic composition, preferably a care cosmetic composition, and more preferably a skin care or hair care cosme