Alkyl sulphooxyalkanoate compounds and compositions
申请人:UNILEVER N.V.
公开号:EP0530866A1
公开(公告)日:1993-03-10
The invention relates to novel sulfooxy alkanoates surfactants
in which a portion of the surfactant molecule has a so-called "benefit reagent" function, and compositions containing these surfactants. It is believed that this benefit reagent portion comes to play when the surfactant metabolized or hydrolyzed.
The surfactants used in these compositions are calcium ion insensitive, show mildness benefits and foam well. Thus the surfactants have been demonstrated to be useful surfactant in addition to delivering a beneficial reagent.
The invention relates to novel phosphate ester surfactants in which a portion of the surfactant molecule has a so-called "benefit reagent" function. It is believed that this benefit reagent portion comes into play when the surfactant is metabolized or hydrolyzed following delivery to the skin.
The surfactants are generally of the formula:
wherein R₁, R₂ are preferably alkyl of 1 to 30 carbon atoms, or for R₁ hydrogen, R₃ is preferably hydrogen or a second esterifying moiety.
The surfactants have good surface active properties and are mild, making them useful in compositions for application to the human body.