C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/39 (2006.01) C11D 1/52 (2006.01) C11D 3/00 (2006.01) C11D 3/20 (2006.01) C11D 3/24 (2006.01) C11D 3/33 (2006.01) C11D 3/34 (2006.01) C11D 17/00 (2006.01)
Patent
CA 2225107
The present invention relates to liquid compositions comprising a peroxygen bleach, a liquid hydrophobic bleach activator and a polyhydroxy fatty acid amide surfactant according to the formula R2-C(O)-N(R1)-Z, wherein R1 is H, or C1-C4 alkyl, C1-C4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl or a mixture thereof, R2 is C5-C31 hydrocarbyl, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, said compositions being formulated either as an emulsion or a microemulsion. The present invention further encompasses a process for pretreating soiled fabrics with a liquid composition comprising such a polyhydroxy fatty acid amide surfactant, whereby improved stain removal performance is delivered.
La présente invention se rapporte à des compositions liquides comprenant un agent de blanchiment au peroxyde, un activateur de blanchiment hydrophobe liquide et un agent tensioactif à base d'amide d'acide gras polyhydroxy répondant à la formule R?2¿-C(O)-N(R?1¿)-Z, dans laquelle R?1¿ représente H ou alkyle C¿1?-C¿4?, hydrocarbyle C¿1?-C¿4?, 2-hydroxyéthyle, 2-hydroxypropyle ou un mélange de ceux-ci, R?2¿ représente hydrocarbyle C¿5?-C¿31?, et Z représente un polyhydroxyhydrocarbyle comportant une chaîne hydrocarbyle linéaire à laquelle sont directement rattachés au moins 3 groupes hydroxyle, ou un dérivé alcoxylé de ce dernier, lesdites compositions pouvant être préparées sous forme d'une émulsion ou d'une microémulsion. La présente invention se rapporte en outre à un procédé de pré-traitement de tissus souillés au moyen d'une composition liquide comprenant un tel agent tensioactif à base d'amide d'acide gras polyhydroxy, permettant d'obtenir de meilleures performances en ce qui concerne l'élimination des taches.
Del Duca Valerio
Scialla Stefano
Scoccianti Raffaele
Dimock Stratton Llp
The Procter & Gamble Company
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