Composition comprising polymers having a star structure, the polymers, and their use
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Abstract
A composition, comprising, in a physiologically acceptable medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of caring for the skin, in particular of the face, and more especially for treating, that is to say decreasing, erasing and/or smoothing out, wrinkles and/or fine lines of the skin.
30 Citations
105 Claims
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1-75. -75. (Canceled)
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76. A cosmetic composition for protecting and/or for caring for the skin of the face, neck, hands, and/or body comprising at least one polymer and a physiologically acceptable medium,
wherein said at least one polymer has a star structure chosen from structures of formula (I): -
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 two different polymerized monomeric units 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 chosen from polymerized monomeric units Mk is present in an amount ranging from 45 to 99 percent by weight relative to the total weight of the polymerized monomeric units Mi. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92)
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93. A composition according to claim 93, wherein said at least one film-forming agent is chosen from plasticizing agents and coalescence agents.
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94. A composition for protecting and/or for caring for the skin of the face, neck, hands, or body, comprising, in a physiologically acceptable medium, at least one polymer in an amount effective to protect and/or for care for the skin of the face, neck, hands, and/or body,
wherein said at least one polymer has a star structure chosen from structures of formula (I): -
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 two different polymerized monomeric units 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 chosen from polymerized monomeric units Mk is present in an amount ranging from 45 to 99 percent by weight relative to the total weight of the polymerized monomeric units Mi. - View Dependent Claims (95, 96)
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97. A composition for the treatment of wrinkles and/or fine lines on skin, comprising, in a physiologically acceptable medium, at least one polymer in an amount effective for decreasing, erasing, concealing and/or softening wrinkles and/or fine lines on the skin,
wherein said at least one polymer has a star structure chosen from structures of formula (I): -
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 two different polymerized monomeric units 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 chosen from polymerized monomeric units Mk is present in an amount ranging from 45 to 99 percent by weight relative to the total weight of the polymerized monomeric units Mi. - View Dependent Claims (98, 99)
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100. An antisun composition, comprising, in a physiologically acceptable medium, at least one polymer in an amount effective to protect the skin of the face, neck, hands, and/or body from the sun,
wherein said at least one polymer has a star structure chosen from structures of formula (I): -
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 two different polymerized monomeric units 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 chosen from polymerized monomeric units Mk is present in an amount ranging from 45 to 99 percent by weight relative to the total weight of the polymerized monomeric units Mi. - View Dependent Claims (101, 102)
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103. A composition for making up the skin and/or body, comprising, in a physiologically acceptable medium, at least one polymer,
wherein said at least one polymer has a star structure chosen from structures of formula (I): -
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 two different polymerized monomeric units 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.;
wherein said at least one polymerized monomeric unit Mi chosen from polymerized monomeric units Mk is present in an amount ranging from 45 to 99 percent by weight relative to the total weight of the polymerized monomeric units Mi, and wherein said composition is in a form chosen from lipsticks, foundations, and tanning creams. - View Dependent Claims (104, 105)
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Specification