Cosmetic compositions comprising oil-in-water emulsion containing pigment

Claim 1

A cosmetic composition which is an oil-in-water emulsion comprising a) an oil phase which comprises i) a coated pigment consisting essentially of finely divided particles of pigment whose surfaces are chemically bonded to, and physically completely coated by, polysiloxane which coating renders the particles hydrophobic, and ii) a silicone component selected from a dimethyl polysiloxane having the formula (CH₃)₃SiO(Si(CH₃)₂O) d -Si(CH₃)₃ wherein the degree of polymerization d is effective to give the fluid a viscosity of 0.65 to one million centistokes at 25°C; and/or cyclomethicone having a degree (D) of polymerization of 3 to 6 repeating units of the formula -(Si(CH₃)₂O) D -; and/or organopolysiloxane having the fomula X(CH₃)₂SiO-Y-Si(CH₃)₂X wherein X is alkyl or alkoxy having 1 to 30 carbon atoms and Y is a chain of 1 to 100 repeating (Si-O) units containing 1 to 100 units of the formula (-Si(R₁)(R₂)O-) and 0 to 100 units of the formula (Si(R₃)(R₄)O) wherein each of R₁, R₂, R₃ and R₄ can be alkyl containing 2 to 30 carbon atoms, phenyl, or phenyl connected to the Si atom by a vinyl group of an alkylene bridge 1 to 3 carbon atoms long; wherein each R₁ and R₃ can also be -CH₃, and each R₁ and R₂ can also be trimethylsiloxy; and mixtures thereof; b) an aqueous phase; c) a surfactant component which comprises one or more polydiorganosiloxane-polyoxyalkylene copolymers containing at least one polydiorganosiloxane segment consisting of siloxane units having the formula: R b SiO (4-b)/2 wherein b has a value of from 0 to 3 inclusive, there being an average of approximately two R radicals per silicon in the copolymer, and R denotes a radical selected from methyl, ethyl, vinyl, phenyl or a divalent radical of 2-6 carbons bonding a polyoxyalkylene segment to the polydi­organosiloxane segment, at least 95 percent of all R radicals being methyl; and containing at least one polyoxyalkylene segment having an average molecular weight of less than 5000 and consisting of from 0 to 50 mol percent polyoxy­propylene units and from 50 to 100 mol percent polyoxyethylene units, at least one terminal portion of said polyoxyalkylene segment being bonded to said polydiorganosiloxane segment, any terminal portion of said polyoxyalkylene segment not bonded to said polydiorganosiloxane segment being satisfied by a terminating radical; and wherein said surfactant component is present in an amount effective to form a stable emulsion of said oil phase in said water phase.