Shaving composition for the skin based on polyorgano-siloxanes containing an acyloxyalkyl group and process for use

Composition intended for shaving of the skin, characterized in that it contains, in a cosmetically acceptable medium including a foaming agent, a polyorganosiloxane containing an acyloxyalkyl group, selected

• 531 (i) linear compounds corresponding to the following average formula (I):
• ##STR15## in which:
• the radicals R, which may be identical or different, are selected from methyl, phenyl, OCOR" and hydroxyl radicals;
• only one of the radicals R per silicon atom can be OH;
• the radicals R', which may be identical or different, are selected from methyl and phenyl radicals;
• at least 60 mol % of all the radicals R and R' is methyl;
• R.sub.1 represents a divalent linear or branched alkylene group of the hydrocarbon type containing from 2 to 18 carbon atoms;
• R" is a C.sub.8 -C.sub.20 alkenyl or alkyl radical;
• r is a number between 1 and 120 inclusive;
• p is a number between 1 and 30;
• and
• q is equal to 0 or is a number not exceeding 0.5 p, the sum p+q being between 1 and 30;
• it being possible for the compounds of formula (I) optionally to contain ##STR16## groups, present in proportions not exceeding 15% of the sum p+q+r;
• and (ii) cyclic compounds represented by the following average formula (II):
• ##STR17## in which:
• R', R" and R.sub.1 have the same meaning as in the formula (I);
• s is a number between 0 and 20;
• t is a number between 1 and 20;
• and
• u is equal to 0 or is equal to a number not exceeding 0.5 t, the sum t+u being between 1 and 20;
• the sum s+t+u being not less than 3.