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US 9,789,055 B2Granted
Solid lipstick composition having improved hardness
AssigneeL'oreal
InventorsHy Si Bui, Rita Jaky El-Khouri
Life of this patent
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Abstract
Disclosed is a solid lipstick composition comprising at least one polypropyl silsesquioxane film forming resin, at least one silicone acrylate copolymer, at least one volatile hydrocarbon solvent, and at least one wax, wherein the ratio of the silicone acrylate copolymer to the polypropyl silsesquioxane resin is from about 1:1 to about 1:4, said composition preferably having a hardness of at least 40 gf for an 8.1 mm diameter stick.
Claims18
A solid lipstick composition comprising:
- (a) from about 1% to about 25% by weight of at least one acrylates/dimethicone copolymer;
- (b) from about 5% to about 35% by weight of at least one polypropylsilsesquioxane film forming resin;
- (c) from 10% to about 20% by weight of at least one synthetic wax;
- (d) at least one volatile hydrocarbon solvent selected from the group consisting of isododecane, isooctane, dodecane, isohexadecane, and mixtures thereof, and
- (e) at least one phenylated silicone oil;
- wherein the polypropylsilsesquioxane film forming resin has the general formula RnSiO(4−n)/2;
- wherein R is independently chosen from a hydrogen atom and a monovalent hydrocarbon group comprising 3 carbon atoms, wherein more than 80 mole % of R are propyl groups;
- n is a value from 1.0 to 1.4;
- more than 60 mole % of the resin comprises RSiO3/2 units;
- said film forming resin having a hydroxyl or alkoxy content from 0.2 to 10% by weight of the resin, and mixtures thereof;
- and wherein the ratio of the acrylates/dimethicone copolymer (a) to the at least one polypropylsilsesquioxane film forming resin (b) is from about 1:1 to about 1:4;
- the composition having a hardness of at least 40 gf;
- the weights being relative to the weight of the composition.
10 more elements
A solid lipstick composition comprising:
- (a) from about 1% to about 25% by weight of acrylate/dimethicone copolymer;
- (b) from about 5% to about 35% by weight of polypropylsilsesquioxane film forming resin;
- (c) from 10% to about 20% by weight of synthetic polyethylene wax;
- (d) isododecane;
- (e) at least one colorant, and
- (f) at least one phenylated silicone oil;
- wherein the polypropylsilsesquioxane film forming resin has the general formula RnSiO(4−n)/2;
- wherein R is independently chosen from a hydrogen atom and a monovalent hydrocarbon group comprising 3 carbon atoms, wherein more than 80 mole % of R are propyl groups;
- n is a value from 1.0 to 1.4;
- more than 60 mole % of the resin comprises RSiO3/2 units;
- said film forming resin having a hydroxyl or alkoxy content from 0.2 to 10% by weight of the resin, and mixtures thereof;
- and wherein the ratio of the acrylate/dimethicone copolymer (a) to the polypropylsilsesquioxane film forming resin (b) is from about 1:1 to about 1:2.5;
- the sum of the weight percent of the at least one silicone acrylate copolymer (a) and the at least one polypropylsilsesquioxane film forming resin (b) is less than or equal to 20%;
- the composition having a hardness of from about 40 gf to about 70 gf;
- the weights being relative to the weight of the composition.
12 more elements
A method of making up lips comprising applying to the lips a solid lipstick composition in an amount effective to make up the lips comprising:
- (a) from about 1% to about 25% by weight of at least one acrylates/dimethicone copolymer;
- (b) from about 5% to about 35% by weight of at least one polypropylsilsesquioxane film forming resin;
- (c) from 10% to about 20% by weight of at least one synthetic wax;
- (d) at least one volatile hydrocarbon solvent selected from the group consisting of isododecane, isooctane, dodecane, isohexadecane, and mixtures thereof;
- (e) at least one colorant, and (f) at least one phenylated silicone oil;
- wherein the polypropylsilsesquioxane film forming resin has the general formula RnSiO(4−n)/2;
- wherein R is independently chosen from a hydrogen atom and a monovalent hydrocarbon group comprising 3 carbon atoms, wherein more than 80 mole % of R are propyl groups;
- n is a value from 1.0 to 1.4;
- more than 60 mole % of the resin comprises RSiO3/2 units;
- said film forming resin having a hydroxyl or alkoxy content from 0.2 to 10% by weight of the resin, and mixtures thereof;
- and wherein the ratio of the acrylates/dimethicone copolymer (a) to the at least one polypropylsilsesquioxane film forming resin (b) is from about 1:1 to about 1:4;
- the composition having a hardness of at least 40 gf;
- the weights being relative to the weight of the composition.
10 more elements
Dependencies are inferred from the claim text.