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US 12,329,848 B2Granted
Compositions and methods for improving the appearance of the skin
AssigneeL'oreal
InventorsAnne-Laure Suzanne Bernard, Yang Deng, Hy Si Bui, Laure Daubersies, Roshanak Debeaud
Life of this patent
Estimating the term…
Abstract
The disclosure relates to compositions and methods for improving the appearance of the skin. Compositions comprise at least one thermoplastic elastomer, at least one adhesive polymer, and at least one filler. Methods comprise applying the compositions to the skin to tighten the skin or hide skin imperfections by forming a film on the skin.
Claims20
A cosmetic composition for tightening skin, the cosmetic composition comprising:
- at least one thermoplastic elastomer chosen from copolymers having at least two glass transition temperatures (Tg);
- at least one adhesive polymer;
- at least one filler;
- and
- at least one volatile solvent having a flash point of at least 40° C., wherein the total amount of volatile solvents in the composition ranges from about 40% to about 95% by weight, relative to the total weight of the composition,
- wherein the at least one thermoplastic elastomer and the at least one adhesive polymer are present in amounts such that the weight ratio of thermoplastic elastomer:
- adhesive polymer ranges from about 1:5 to about 5:1,
- wherein the composition forms a skin-tightening film having a Young Modulus greater than about 500 kPa, and
- wherein the at least one thermoplastic elastomer is chosen from semicrystalline block copolymers comprising at least one moiety of formula (I), formula (II), formula (III), and/or formula (IV):
- wherein, in formula (I):
- 1) R1, R2, R3, and R4, which may be identical or different, represent a group chosen from:
- (a) linear, branched, or cyclic, saturated or unsaturated, C1 to C40 hydrocarbon-based groups, optionally containing in their chain one or more oxygen, sulphur, and/or nitrogen atoms, and optionally being partially or totally substituted with fluorine atoms,
- (b) C6 to C10 aryl groups, optionally substituted with one or more C1 to C4 alkyl groups, and/or
- (c) polyorganosiloxane chains optionally containing one or more oxygen, sulphur, and/or nitrogen atoms;
- 2) X, which may be identical or different, represents a linear or branched C1 to C30 alkylenediyl group, optionally containing in its chain one or more oxygen and/or nitrogen atoms;
- 3) Y is a saturated or unsaturated, C1 to C50 linear or branched divalent alkylene, arylene, cycloalkylene, alkylarylene, or arylalkylene group, optionally comprising one or more oxygen, sulphur, and/or nitrogen atoms, and/or optionally substituted with one of the following atoms or groups of atoms:
- fluorine, hydroxyl, C3 to C8 cycloalkyl, C1 to C40 alkyl, C5 to C10 aryl, phenyl optionally substituted with one to three C1 to C3 alkyl, C1 to C3 hydroxyalkyl, and/or C1 to C6 aminoalkyl groups;
- 4) G, which may be identical or different, represents a group chosen from ester groups, amide groups, sulphonamide groups, carbamate groups, thiocarbamate groups, urea groups, and/or thiourea groups;
- 5) m is an integer ranging from 1 to 1,000;
- and
- 6) n is an integer ranging from 2 to 500;
- wherein, in formula (II):
- 7) R1 and R3, which may be identical or different, are as defined for formula (I),
- 8) R7 represents a group as defined for R1 and R3, or represents a group of formula —X-G-R9 in which:
- (a) X and G are as defined above for formula (I), and
- (b) R9 represents a hydrogen atom or a linear, branched, or cyclic, saturated or unsaturated, C1 to C50 hydrocarbon-based group optionally comprising in its chain one or more atoms chosen from O, S, and/or N, optionally substituted with one or more fluorine atoms and/or one or more hydroxyl groups, or a phenyl group optionally substituted with one or more C1 to C4 alkyl groups,
- 9) R8 represents a group of formula —X-G-R9 in which X, G, and R9 are as defined above,
- 10) m1 is an integer ranging from 1 to 998, and
- 11) m2 is an integer ranging from 2 to 500;
- wherein, in formulae (III) and (IV):
- 12) R1, R2, R3, and R4, which may be identical or different, are chosen from methyl, ethyl, propyl, isopropyl, or phenyl radicals, or may be a siloxane chain;
- 13) X is chosen from linear or branched chain alkylenes having from 1-30 carbons;
- 14) Y is chosen from linear or branched chain alkylenes having from 1-40 carbons;
- 15) m is a number ranging from 1 to 700;
- and
- 16) n is a number ranging from 1 to 500.
33 more elements
A method for improving the appearance of skin, the method comprising forming a skin-tightening film on the skin by applying to the skin a cosmetic composition comprising:
- at least one thermoplastic elastomer chosen from block copolymers having at least two glass transition temperatures (Tg);
- at least one adhesive polymer;
- at least one filler;
- and
- at least one volatile solvent having a flash point of at least 40° C., wherein the total amount of volatile solvents in the composition ranges from about 40% to about 95% by weight, relative to the total weight of the composition,
- wherein the at least one thermoplastic elastomer and the at least one adhesive polymer are present in amounts such that the weight ratio of thermoplastic elastomer:
- adhesive polymer ranges from about 1:5 to about 5:1,
- wherein the Young Modulus of the skin-tightening film formed on the skin is greater than about 500 kPa;
- and
- wherein the at least one thermoplastic elastomer is chosen from semicrystalline block copolymers comprising at least one moiety of formula (I), formula (II), formula (III), and/or formula (IV):
- wherein, in formula (I):
- 1) R1, R2, R3, and R4, which may be identical or different, represent a group chosen from:
- (a) linear, branched, or cyclic, saturated or unsaturated, C1 to C40 hydrocarbon-based groups, optionally containing in their chain one or more oxygen, sulphur, and/or nitrogen atoms, and optionally being partially or totally substituted with fluorine atoms,
- (b) C6 to C10 aryl groups, optionally substituted with one or more C1 to C4 alkyl groups, and/or
- (c) polyorganosiloxane chains optionally containing one or more oxygen, sulphur, and/or nitrogen atoms;
- 2) X, which may be identical or different, represents a linear or branched C1 to C30 alkylenediyl group, optionally containing in its chain one or more oxygen and/or nitrogen atoms;
- 3) Y is a saturated or unsaturated, C1 to C50 linear or branched divalent alkylene, arylene, cycloalkylene, alkylarylene, or arylalkylene group, optionally comprising one or more oxygen, sulphur, and/or nitrogen atoms, and/or optionally substituted with one of the following atoms or groups of atoms:
- fluorine, hydroxyl, C3 to C8 cycloalkyl, C1 to C40 alkyl, C5 to C10 aryl, phenyl optionally substituted with one to three C1 to C3 alkyl, C1 to C3 hydroxyalkyl, and/or C1 to C6 aminoalkyl groups;
- 4) G, which may be identical or different, represents a group chosen from ester groups, amide groups, sulphonamide groups, carbamate groups, thiocarbamate groups, urea groups, and/or thiourea groups;
- 5) m is an integer ranging from 1 to 1,000;
- and
- 6) n is an integer ranging from 2 to 500;
- wherein, in formula (II):
- 7) R1 and R3, which may be identical or different, are as defined for formula (I),
- 8) R7 represents a group as defined for R1 and R3, or represents a group of formula —X-G-R9 in which:
- (a) X and G are as defined above for formula (I), and
- (b) R9 represents a hydrogen atom or a linear, branched, or cyclic, saturated or unsaturated, C1 to C50 hydrocarbon-based group optionally comprising in its chain one or more atoms chosen from O, S, and/or N, optionally substituted with one or more fluorine atoms and/or one or more hydroxyl groups, or a phenyl group optionally substituted with one or more C1 to C4 alkyl groups,
- 9) R8 represents a group of formula —X-G-R9 in which X, G, and R9 are as defined above,
- 10) m1 is an integer ranging from 1 to 998, and
- 11) m2 is an integer ranging from 2 to 500;
- wherein, in formulae (III) and (IV):
- 12) R1, R2, R3, and R4, which may be identical or different, are chosen from methyl, ethyl, propyl, isopropyl, or phenyl radicals, or may be a siloxane chain;
- 13) X is chosen from linear or branched chain alkylenes having from 1-30 carbons;
- 14) Y is chosen from linear or branched chain alkylenes having from 1-40 carbons;
- 15) m is a number ranging from 1 to 700;
- and
- 16) n is a number ranging from 1 to 500.
34 more elements
A cosmetic composition comprising:
- means for tightening skin;
- and
- at least one volatile solvent having a flash point of at least 40° C., wherein the total amount of volatile solvents in the composition ranges from about 40% to about 95% by weight, relative to the total weight of the composition,
- wherein the composition forms a film having a Young Modulus greater than about 500 kPa.
1 more element
Dependencies are inferred from the claim text.