Abstract: A a polyaluminum dialkyl phosphate is disclosed. The compound is prepared by the reaction of:(A) a dialkyl phosphate represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrocarbon group of a C.sub.8-26 carbon atom content, or a salt thereof, and(B) a basic polyaluminum salt represented by formula(II):Al.sub.m (OH).sub.n X.sub.1.kH.sub.2 O (II)wherein X represents an anion having a valency of x other than a hydroxyl ion, m represents a positive integer satisfying the equation: 3m=n+xl, and k represents 0 or a positive integer, in an aqueous medium in which the resulting polyaluminum dialkyl phosphate is insoluble. The polyaluminum dialkyl phosphate, when it is formulated into a liquid oil, provides a highly transparent, densely structured, soft gel which contains only small amount of free oil component. The gel posseses favorable rheological characteristics and can adequately disperse by a stress and imparts a good feeling upon use.

Abstract: A water-in-oil type emulsion cosmetic, which comprises a specific emulsifier mixture, an oily base containing a silicone oil and water and has a viscosity of 20,000 cps or below at 25.degree. C. is disclosed. The water-in-oil type emulsion cosmetic of the present invention imparts a good feel to the skin during use, is safe to use and has a high storage stability, which makes it widely applicable for use in, for example, milky lotions, body-care lotions and liquid-type foundations.

Abstract: A polyaluminum dialkyl phosphate is disclosed. The compound is prepared by the reaction of:(A) a dialkyl phosphate represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrocarbon group of a C.sub.8-26 carbon atom content, or a salt thereof, and(B) a basic polyaluminum salt represented by formula (II):Al.sub.m (OH).sub.n X.sub.1.kH.sub.2 O (II)wherein X represents an anion having a valency of x other than a hydroxyl ion, m represents a positive integer satisfying the equation: 3m=n+x1, and k represents 0 or a positive integer, in an aqueous medium in which the resulting polyaluminum dialkyl phosphate is insoluble. The polyaluminum dialkyl phosphate, when it is formulated into a liquid oil, provides a highly transparent, densely structure, soft gel which contains only small amount of free oil component. The gel posseses favorable rheological characteristics and can adequately disperse by a stress and imparts a good feeeling upon use.