Cosmetic composition intended for making up the skin, process for its preparation and make-up product obtained from said composition

An extruded homogeneous, cosmetic composition for making up the skin including a pulverulent fraction of particles comprising a filler and, optionally, a pigment;

• dispersed in a binder consisting of an emulsion of a fatty phase and an aqueous phase;
• said pulverulent fraction, fatty phase and aqueous phase having been mixed prior to extrusion, by simultaneously introducing said fatty phase, aqueous phase and pulverulent fraction into a cooker-extruder mixer, wherein said cooker-extruder mixer comprises:
• (a) an entry end,
• (b) and exit end,
• (c) an outer casing provided with an extrusion die at the exit end, and
• (d) a shaft driven in rotation within the outer casing so that a peripheral structure of the shaft interacts with the outer casing and if there is a second shaft with a peripheral structure of the second shaft, to ensure blending of said constituents and movement of said cosmetic composition in the outer casing toward the extrusion die, wherein:
• said pulverulent fraction comprises particles and, optionally, a pigment;
• and said particles having a relative density D and a dimension of between 0.5 and 100 .mu.m;
• said particles being present in a concentration per unit volume of at least a critical particle concentration C* which is the concentration by volume of the particles relative to the nonvolatile fraction of the binder at which the amount of nonvolatile fraction of the binder fills the interstices between said particles;
• and said filler being present at a concentration F, defined by the formula:
• ##EQU4## which is between F0 and 1.8.times.F0 , wherein F0 is calculated as follows:
• F0=10 if D.ltoreq.0.1,
• F0 =(60.times.D)+4 if 0.1<D.ltoreq.0.6, and
• F0=40 if D>0.6.