Patent ID: 6509012
Filing Date: 2003-01-21
Classification: A61K,A61Q

Abstract:
An aqueous cationic surfactant formulation comprisinga) from 10 to 50% by weight of a quaternary ammonium compound of the formula I: â€ƒwhere R1, R2, R3, R4, R5 are: R1, R2, R3 and R4 independently are hydroxyalkyl- or hydroxyalkyl ether-substituted or unsubstituted, branched or unbranched C1-C4- or hydroxyalkyl- or hydroxyalkyl ether-substituted or unsubstituted, branched or unbranched, saturated or unsaturated C8-C16-alkyl, at least one and not more than two of R1, R2, R3 and R4 being hydroxyalkyl- or hydroxyalkyl ether-substituted or unsubstituted, branched or unbranched, saturated or unsaturated C8-C16-alkyl, and a water-soluble anion of the formula (II) is R5â€”Oâ€”SO3âˆ’, where R5 is C1-C4-alkyl, b) from 0.01 to 15% by weight of an amine of the formula III: where R1, R2 and R3 are as defined above and not more than two of R1, R2 and R3 are hydroxyalkyl- or hydroxyalkyl ether substituted or unsubstituted, branched or unbranched, saturated or unsaturated C8-C16-alkyl, and c) from 0.1 to 5.0% by weight of a buffer which maintains a pH in a range from 4 to 9.