Personal care compositions
View Patent ↗Personal care compositions, particularly hair care products, include a polymer mixture made from (A) a derivatized polymer of maleic anhydride having defined repeat units of a monomer (e.g. α-olefin) maleic anhydride alkyl half-ester or full acid, maleamic acid and maleimide, and (B) a compound or polymer having a carboxylic acid functionality. These compositions exhibit excellent high humidity curl retention properties, as well as an advantageous blend of toughness and cohesiveness, and a strong affinity to natural fibers such as keratin-based fibers, e.g. hair, skin, or textiles, such as cotton or wool; and they are also water-soluble and water-resistant.
1. A personal care composition which includes a mixture of (A), a polymer characterized structurally by repeat units of (a) a monomer-maleic anhydride alkyl half-ester or full acid, (b) maleamic acid, and (c) maleimide, of the formulas:
where:
R, R 1 , R 2 and R 3 are selected from H, alkyl, alkoxy, cycloalkyl, aryl, ester, acid, hydroxy, hydroxyalkyl, amido, amino, lactam, chloro, fluoro, halo and silyl, and R 4 is H or alkyl; and
R′ is a derivatizing group which is a polyoxyalkylene amine, having the formula:
where R 5 and R 6 are selected from H and alkyl; and n and m are integers from 1–50;
x, y and z are present, in mole %, of 0–99.9, 0–50 and 0.1–100, respectively;
and (B) a compound or polymer having a carboxylic acid functionality water and/or ethanol.
2. A personal care composition according to claim 1 wherein x=0–50, y=0–5 and z=5–100.
3. A personal care composition according to claim 1 wherein said derivatizing group also includes 3-(dimethylamino) propylamine.
4. A personal care composition according to claim 3 wherein wherein said 3-(dimethylamino) propyl amine and said polyoxyalkylene amine are present in a mole ratio of 40:98:1–10.
5. A personal care composition according to claim 4 wherein R 5 is CH 3 and R 6 is H.
6. A personal care composition according to claim 4 wherein both R 5 and R 6 are CH 3 .
7. A personal care composition according to claim 4 wherein n=32 and m=10.
8. A personal care composition according to claim 1 wherein, in (a), said monomer is an α-olefin.
9. A personal care composition according to claim 1 wherein (B) is a crosslinked carboxylic acid containing polymer.
10. A personal care composition according to claim 9 wherein (B) is a crosslinked acrylic acid polymer.
11. A personal care composition according to claim 1 wherein (B) is a linear carboxylic acid containing polymer.
12. A personal care composition according to claim 1 wherein (B) is an acrylic acid containing polymer.
13. A personal care composition according to claim 1 wherein (A) and (B) are present and the mole ratio of maleimide in (A) to the carboxylic units in (B) is about 1:1.
14. A personal care composition according to claim 1 which is a hair care composition exhibiting excellent high humidity curl retention.
15. A hair care composition according to claim 14 which is a styling, mousse, gel or spray formulation.
16. A cosmetic film-forming composition according to claim 1 for producing a water-resistant film demonstrating excellent hold, and durability properties.
17. A cosmetic film-forming composition according to claim 16 which is a mascara product exhibiting excellent high humidity and moisture resistance.