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US 6,641,825 B2Granted
Skin cleansing gel having a heating effect
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsWolfhard Scholz, Katrin Meyer zu Schlochtern-Maric, Armin Wadle
Life of this patent
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Abstract
A gentle skin cleansing gel is provided containing as an ingredient, water soluble salts having a negative enthalpy in solution, which when mixed with water release heat which improves the cleansing effect and the release of perfumes creating a pleasant effect on the skin.
Claims13
A cleansing gel composition which releases heat of hydration when mixed with water and which contains a water-free liquid carrier and powder components dispersed therein, comprising
- (A) at least 40% by weight of water-miscible hydroxyl compounds selected from the group consisting of glycols, glycol ethers and polyols containing 2 to 6 carbon atoms and polyalkylene glycols with molecular weights of up to 1,000 D and mixtures thereof,
- (B) at least 5% by weight of surfactants selected from the group consisting of anionic, zwitterionic, and nonionic surfactants,
- (C) at least 5% by weight of dispersed, particulate, water-soluble salts that release heat on mixing with water;
- and
- (D) at least 0.1% by weight of a water-soluble thickener dissolved in the carrier, or at least 1% by weight of a particulate thickener dispersed in the carrier, or both at least 0.1% by weight of said water-soluble thickener and at least 1% by weight of said particulate thickener.
2 more elements
A cleansing gel composition comprising
- 45 to 55% by weight of a mixture of (i) propylene glycol or butylene glycol or both propylene glycol and butylene glycol, (ii) polyethylene glycol and (iii) ethoxydiglycol, 10 to 30% by weight of a dispersed water-free anionic or water-free zwitterionic surfactant or mixture of dispersed water-free anionic and water-free zwitterionic surfactants, 0.5 to 5% by weight of a dissolved water-free nonionic surfactant, 5 to 20% by weight of magnesium sulfate, sodium sulfate, or mixture of magnesium sulfate and sodium sulfate 0.1 to 0.5% by weight of a dissolved nonionic cellulose ether 1 to 5% by weight of an amorphous silica;
- and 3 to 20% by weight of talcum.
Dependencies are inferred from the claim text.