Cosmestic compositions containing a cationic polymer and an anionic polymer as thickening agent
First Claim
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1. Thickening agent resulting from the ionic interaction of a cationic polymer consisting of a copolymer of cellulose or of a cellulose derivative which is grafted with a quaternary ammonium salt of a water-soluble monomer, said cationic polymer having an absolute capillary viscosity at 1% in water at 30°
- C. which is less than 0.025 Pa s, and of a carboxylic anionic polymer having a molecular weight of 500 to 3,000,000, said carboxylic anionic polymer having an absolute capillary viscosity at a concentration of 5% in dimethylformamide or methanol at 30°
C. which is less than or equal to 0.030 Pa s, said thickening agent having an Epprecht-Drage viscosity, module 3, higher than or equal to 0.45 Pa s in solution at a concentration of 1% in water at 21°
C., and the weight ratio of said cationic polymer to said carboxylic anionic polymer in said thickening agent being in the range of 1/5 to 5/1.
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Abstract
Thickening agent resulting from the interaction of a copolymer of cellulose or of a cellulose derivative which are grafted with a quaternary ammonium salt of a water-soluble monomer and of a carboxylic anionic polymer and cosmetic compositions in which it is present.
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Citations
15 Claims
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1. Thickening agent resulting from the ionic interaction of a cationic polymer consisting of a copolymer of cellulose or of a cellulose derivative which is grafted with a quaternary ammonium salt of a water-soluble monomer, said cationic polymer having an absolute capillary viscosity at 1% in water at 30°
- C. which is less than 0.025 Pa s, and of a carboxylic anionic polymer having a molecular weight of 500 to 3,000,000, said carboxylic anionic polymer having an absolute capillary viscosity at a concentration of 5% in dimethylformamide or methanol at 30°
C. which is less than or equal to 0.030 Pa s, said thickening agent having an Epprecht-Drage viscosity, module 3, higher than or equal to 0.45 Pa s in solution at a concentration of 1% in water at 21°
C., and the weight ratio of said cationic polymer to said carboxylic anionic polymer in said thickening agent being in the range of 1/5 to 5/1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15)
- C. which is less than 0.025 Pa s, and of a carboxylic anionic polymer having a molecular weight of 500 to 3,000,000, said carboxylic anionic polymer having an absolute capillary viscosity at a concentration of 5% in dimethylformamide or methanol at 30°
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12. Cosmetic composition intended to be employed for hair-setting, containing in an aqueous or aqueous-alcoholic medium, a thickener resulting from the ionic interaction of 0.1 to 1.5% by weight of a hydroxyethyl cellulose copolymer grafted by a radical route with diallyldimethylammonium chloride having an absolute capillary viscosity at 1% in water at 30°
- C. which is less than 0.025 Pa s and of 0.1 to 1.5% by weight of a copolymer of methacrylic acid with methyl methacrylate or with monoethyl maleate or with butyl methacrylate whose absolute capillary viscosity, measured at 30°
C. in solution in dimethylformamide or methanol at a concentration of 5%, is between 0.010 and 0.015 Pa s, the copolymer of methacrylic acid having a molecular weight of 500 to 3,000,000, the Epprecht-Drage viscosity of the thickener, measured at 21°
C., module 3, diluted to a concentration of 1% in water, being higher than 0.450 Pa s, the pH of the composition being between 6.5 and 9, and the thickener being present in the composition in an amount of 0.02 to 12% by weight, based on the total weight of the composition.
- C. which is less than 0.025 Pa s and of 0.1 to 1.5% by weight of a copolymer of methacrylic acid with methyl methacrylate or with monoethyl maleate or with butyl methacrylate whose absolute capillary viscosity, measured at 30°
Specification