Hair conditioning composition comprising hydrophobically...

A - Human Necessities – 61 – K

Patent

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A61K 8/73 (2006.01)

Patent

CA 2379651

Disclosed is a hair conditioning composition comprising by weight: (a) from about 0.001 % to about 2 % of a hydrophobically modified cellulose ether comprising a hydrophilic cellulose backbone and a hydrophobic substitution group; the hydrophilic cellulose backbone being water soluble and selected from the group consisting of methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxyethyl ethylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, hydroxybutyl cellulose, and mixtures thereof; and having grafted thereto the hydrophobic substitution group to render the hydrophobically modified cellulose ether to have less than 1 % water solubility, the hydrophobic substitution group selected from a straight or branched chain alkyl group of from about 10 to about 22 carbons; wherein the ratio of the hydrophilic groups in the hydrophilic cellulose backbone to the hydrophobic substitution group being from about 2:1 to about 1000:1; (b) from about 0.1 % to about 15 % of a high melting point fatty compound having a melting point of 25 ~C or higher; (c) from about 0.1 % to about 10 % of a cationic conditioning agent having saturated alkyl groups; and (d) an aqueous carrier.

L'invention concerne une composition de traitement capillaire contenant en poids: (a) d'environ 0,001 % à environ 2 % d'un éther de cellulose rendu hydrophobe, qui comporte un squelette de cellulose hydrophile et un groupe de substitution hydrophobe; le squelette de cellulose hydrophile est soluble dans l'eau et est sélectionné dans le groupe constitué par la méthylcellulose, l'hydroxyméthylcellulose, l'hydroxyéthylcellulose, l'hydroxyéthyléthylcellulose, l'hydroxypropylcellulose, l'hydroxypropylméthylcellulose, l'hydroxybutylcellulose et des mélanges de celles-ci ; et contient le groupe de substitution hydrophobe greffé de manière à former un éther de cellulose rendu hydrophobe présentant moins de 1 % de solubilité dans l'eau ; le groupe de substitution hydrophobe est sélectionné dans le groupe constitué par des groupes alkyle à chaîne droite ou ramifiée possédant entre environ 10 et environ 22 atomes de carbone; le rapport entre les groupes hydrophiles du squelette de cellulose hydrophile et le groupe de substitution hydrophobe se situe entre environ 2:1 et environ 1000:1; (b) d'environ 0,1 % à environ 15 % d'un composé gras à point de fusion élevé, présentant un point de fusion égal ou supérieur à 25 ·C; (c) d'environ 0,1 % à environ 10 % d'un agent de traitement cationique possédant des groupes alkyle saturés; et (d) un excipient aqueux.

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