Cosmetic composition comprising polymers having a star structure, the polymers, and their use
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Abstract
A composition capable of being applied to the hair, comprising, in a cosmetically acceptable medium, at least one polymer with a highly specific ordered structure is disclosed. A process for shaping or retaining the form of the hair using this composition and the use in the formulation of styling products, such as lacquers, sprays or foams, for the purpose of obtaining form retention or shaping of the hairstyle is also disclosed.
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Citations
61 Claims
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1-40. -40. (canceled)
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41. A hair composition, comprising, in an acceptable medium, at least one polymer having a star structure chosen from structures of formula (I):
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A—
[(M1)p1−
(M2)p2 . . . (Mi)pj]n
(I)in which;
A is chosen from polyfunctional centers having a functionality n;
[(M1)p1−
(M2)p2 . . . (Mi)pj] represents a branch comprising at least one polymerized monomeric unit Mi having a polymerization index pj;
n is an integer greater than or equal to 2;
pj is greater than or equal to 2;
there are at least two branches, which may be identical or different; and
said at least two branches are grafted covalently to A;
wherein said at least one polymerized monomeric unit Mi comprised by at least one of said at least two branches is chosen from polymerized monomeric units Mk, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mk has a Tg of greater than or equal to 10°
C.; and
wherein said at least one polymerized monomeric unit Mi contained by at least one of said at least two branches is chosen from polymerized monomeric units Mj, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mj has a Tg of less than or equal to 10°
C.- View Dependent Claims (42, 43, 46, 47, 48, 49, 50, 51, 52, 54)
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- 44. A composition according to claim 44, wherein said at least one agent which is able to form a film.
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53. (canceled)
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55. A process for retaining or shaping the hair, comprising applying to said hair a composition, comprising, in an acceptable medium, at least one polymer having a star structure chosen from structures of formula (i):
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A−
[(M
1)p1−
(M2)p2 . . . (Mi)pj]n
(I)in which;
A is chosen from polyfunctional centers having a functionality n;
[(M1)p1−
(M2)p2 . . . (Mi)pj] represents a branch comprising at least one polymerized monomeric unit Mi having a polymerization index pj;
n is an integer greater than or equal to 2;
pj is greater than or equal to 2;
there are at least two branches, which may be identical or different; and
said at least two branches are grafted covalently to A;
wherein said at least one polymerized monomeric unit Mi comprised by at least one of said at least two branches is chosen from polymerized monomeric units Mk, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mk has a Tg of greater than or equal to 10°
C.; and
wherein said at least one polymerized monomeric unit Mi contained by at least one of said at least two branches is chosen from polymerized monomeric units Mj, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mj has a Tg of less than or equal to 10°
C.- View Dependent Claims (56, 57, 58)
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59. A process for preparing a styling product, comprising introducing, in an acceptable medium, at least one polymer in an amount effective for retaining and/or shaping hair, wherein said at least one polymer having a star structure chosen from structures of formula (1):
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A−
[(M
1)p1−
(M2)p2 . . . (Mi)pj]n(I)in which;
A is chosen from polyfunctional centers having a functionality n;
[(M1)p1−
(M2)p2 . . . (Mi)pj] represents a branch comprising at least one polymerized monomeric unit Mi having a polymerization index pj;
n is an integer greater than or equal to 2;
pj is greater than or equal to 2;
there are at least two branches, which may be identical or different; and
said at least two branches are grafted covalently to A;
wherein said at least one polymerized monomeric unit Mi comprised by at least one of said at least two branches is chosen from polymerized monomeric units Mk, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mk has a Tg of greater than or equal to 10°
C.; and
wherein said at least one polymerized monomeric unit Mi contained by at least one of said at least two branches is chosen from polymerized monomeric units Mj, which may be identical or different, wherein a homopolymer formed by the corresponding polymerized monomeric units Mj has a Tg of less than or equal to 10°
C.- View Dependent Claims (60, 61)
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Specification