A method of preparing fabric conditioning compositions

Details A method of preparing fabric conditioning compositions A method of preparing fabric conditioning compositions

C - Chemistry, Metallurgy

11

D

C11D 1/835 (2006.01) C11D 3/00 (2006.01) C11D 3/20 (2006.01) C11D 11/00 (2006.01) C11D 1/62 (2006.01) C11D 1/72 (2006.01)

Patent

CA 2421225

A method of preparing an aqueous dispersion of a fabric conditioning composition comprises mixing 7.5 to 60 % byweight of a cationic fabric softening compound, the compound having one or more hydrocarbyl chains formed from parent fatty acyl compounds or fatty acids having an iodine value of from 0 to 20 with 0.01 % - 1.5 % by weight of a nonionic surfactant viscosity modifier and up to 1.4 % by weight of a fatty alcohol, the combination of (b) and (c) being no more than 1.5 % by weight, based on the total weight of the composition, the aqueous dispersion being subjected to high-shear below the phase transition temperature of compound (a) for a time sufficient to provide a composition having a viscosity of from 10 to 250 mPa.s measured at 20s-1 using a Haake MV1 Rotoviscometer at 20 ~C.

L'invention concerne un procédé de fabrication d'une dispersion aqueuse de composition de conditionnement de tissu comportant entre 7,5 % et 60 % par poids d'un composant cationique adoucissant les tissus. Ledit composant possède une ou plusieurs chaîne(s) hydrocarbyle(s) formée(s) à partir de composants acyles gras parents ou d'acides gras possédant une valeur d'iode comprise entre 0 et 20, avec 0,01 % à 1,5 % par poids de modificateur de viscosité surfactant non-ionique et jusqu'à 1,4 % par poids d'un alcool gras, la combinaison de (b) et (c) ne représentant pas plus de 1,5 % par poids, par rapport au poids total de la composition, la dispersion aqueuse étant soumise à un cisaillement élevé en deçà de la température de transition de phase du composant (a) pendant une période suffisante pour obtenir une composition dont la viscosité sera comprise entre 10 et 250 mPa.s mesurée à 20s-1 avec un Rotoviscomètre MV1 Haake à 20 ·C.

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