Aqueous composition for cosmetics and cosmetic including the same
View Patent ↗An aqueous composition, for alleviating at least one problem that conventional aqueous cosmetic compositions, includes (A) at least one selected from the group consisting of a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5, a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5 and an acyl modified starch with a carbon number of 2 to 18 and a cross-linked product of an acyl modified starch with a carbon number of 2 to 18; and (B) a water-soluble polymer material. When the water-soluble polymer material (B) is an association type poly(meth)acrylate polymer, a nonionic or cationic cellulose polymer, a poly(meth)acrylic acid polymer or xanthan gum, the aqueous composition exhibits excellent viscosity increase ratio and temporal stability.
1. An aqueous cosmetic composition comprising:
0.5 to 5.5 weight % of at least one starch selected from the group consisting of a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5, a cross-linked product of a hydroxyalkyl modified starch with a carbon number of 2 to 5 and an acyl modified starch with a carbon number of 2 to 18, and a cross-linked product of an acyl modified starch with a carbon number of 2 to 18, based on total weight of the aqueous composition,
at least one water-soluble polymer material such that the weight ratio of the at least one starch to the water-soluble polymer in the aqueous composition is from 0.5:1 to 30:1.
2. The aqueous cosmetic composition according to claim 1 wherein the at least one water-soluble polymer material is selected from the group consisting of poly(meth)acrylate polymer, nonionic cellulose polymer, cationic cellulose polymer, poly(meth)acrylic acid polymer and xanthan gum.
3. The aqueous cosmetic composition according to claim 2 wherein the at least one water-soluble polymer material is poly(meth)acrylate polymer and the poly(meth)acrylate polymer is an association type polymer.
4. The aqueous cosmetic composition according to claim 3 wherein the association type polymer is an anionic polymer.
5. The aqueous cosmetic composition according to claim 3 wherein the association type polymer is a cationic polymer.
6. The aqueous cosmetic composition according to claim 2 wherein the at least one water-soluble polymer material is a nonionic cellulose polymer.
7. The aqueous cosmetic composition according to claim 6 wherein the nonionic cellulose polymer is hydroxyalkyl cellulose.
8. The aqueous cosmetic composition according to claim 2 wherein the at least one water-soluble polymer material is a cationic cellulose polymer.
9. The aqueous cosmetic composition according to claim 8 wherein the cationic cellulose polymer is O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride.
10. The aqueous cosmetic composition according to claim 2 wherein the at least one water-soluble polymer material is xanthan gum that has been heat-treated at 60° C. or higher.
11. The aqueous cosmetic composition according to claim 1 wherein the at least one starch is starch cross-linked by phosphorylation.
12. The aqueous cosmetic composition according to claim 11 wherein the cross-linked starch is cross-linked by alkanedicarboxylic acid or alkenedicarboxylic acid.
13. The aqueous cosmetic composition according to claim 1 wherein the at least one starch has an amylopectin content of at least 70 wt %.
14. The aqueous cosmetic composition according to claim 1 wherein the cosmetic composition is a cleansing cosmetic, hair cosmetic, make-up cosmetic or skin care cosmetic.
15. The aqueous cosmetic composition according to claim 14 wherein the cosmetic composition is a cleansing cosmetic selected from the group consisting of shampoo, rinse, conditioner, hand soap, body soap, facial wash and make-up cleanser.
16. The aqueous cosmetic composition according to claim 14 wherein the cosmetic composition is a hair cosmetic selected from the group consisting of hair foam, hair gel, nonaerosol pump spray, hair cream, hair wax, acidic hair dye, hair colorant, perming agent and bleaching agent.
17. The aqueous cosmetic composition according to claim 14 wherein the cosmetic composition is a make-up cosmetic is selected from the group consisting of manicure, mascara, eyeliner, eye shadow, liquid foundation, lipstick and cheek rouge.
18. The aqueous cosmetic composition according to claim 14 wherein the cosmetic composition is a skin care cosmetic is selected from the group consisting of foundation, pack, sunscreen, skin lotion, milky lotion and skin cream.