Emulsifier compositions for applying silicone oil to hair

A - Human Necessities – 61 – K

Patent

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A61K 8/89 (2006.01) A61K 8/86 (2006.01) A61Q 5/12 (2006.01) A61K 7/075 (1995.01)

Patent

CA 2131029

A liquid hair care composition for conditioning hair with silicone oil comprises a stable emulsion of a water-insoluble hair conditioning silicone oil dispersed in a polyoxyalkylene glycol liquid carrier containing an effective emulsifying amount of a complex formed from (i) an anionic copolymer of dimethylpolysiloxane and polyoxethylene wherein the siloxane chain contains from 20 to 40 dimethylsiloxy units and the oxyethylene chain contains from 3 to 15 oxyethylene units and terminates in an anionic phosphate or sulfate group, and (ii) a cationic hair conditioner compound containing at least one cationic quaternary nitrogen or amido amino group and at least one hydrophobic aliphatic or silicone polymer chain. The emulsifying anionic-cationic complex of this hair care composition can be usefully incorporated in other hair compositions, such as particularly emulsions containing silicone oil.

Une composition de soins capillaires liquide, servant à traiter les cheveux avec de l'huile de silicone, comprend une émulsion stable d'une huile de silicone pour traitement capillaire, insoluble dans l'eau, dispersée dans un excipient liquide à base de polyoxyalkylèneglycol contenant une dose émulsifiante efficace d'un complexe composé (i) d'un copolymère anionique de diméthylpolysiloxane et de polyoxyéthylène, la chaîne de siloxane contenant de 20 à 40 unités de diméthylsiloxy et la chaîne d'oxyéthylène contenant de 3 à 15 unités d'oxyéthylène et se terminant par un groupe sulfate ou phosphate anionique, et (ii) d'un composé de traitement capillaire cationique contenant au moins un groupe azoté quaternaire ou un groupe aminé amido cationique et au moins une chaîne polymère de silicone ou aliphatique hydrophobe. Le complexe émulsifiant anionique-cationique de cette composition de soins capillaires peut être avantageusement incorporé dans d'autres compositions capillaires, en particulier des émulsions contenant de l'huile de silicone.

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