Patent ID: 8647653

Claim:
A powdery composition, comprising: a) core-shell particles having a shell of hydrophobized particles; and b) a carrier powder comprising a carrier and at least one of an at least partially water soluble liquid and/or a water reactive substrate reversibly bound to the carrier by at least one of capillary action, absorption and adsorption; wherein the core-shell particles have a core, comprising: water; and 0 to 10 wt. % of a total core weight of a dissolved or emulsified material, the carrier comprises at least one material selected from the group consisting of silica, a silica-metal mixed oxide, phyllosilicate, starch, hollow glass spheres, nylon, sugar, cyclodextrines and polysaccharides, and wherein a weight ratio of the carrier including the reversibly bound at least partially water soluble liquid and/or water reactive substrate to the core-shell particles is from 1:1 to 1:9, wherein the shell particles comprise hydrophobized silica particles, a BET surface area of the hydrophobized silica particles is from 200 to 290 m 2 /g, a carbon content of the hydrophobized silica particles is 2 to 4 wt.-%, a methanol wettability of the hydrophobized silica particles is at least 50, the hydrophobized silica particles are obtained by reacting a hydrophilic fumed silica having a BET surface area of from 270 to 330 m 2 /g with hexamethyldisilazane, wherein at least one of a) the aqueous phase of the core of the core-shell particles and b) the at least partially water soluble liquid and water reactive substrate comprises at least one material selected from the group consisting of a UV light protection filter, an antioxidant, a moisturizing substance, a deodorant, an antiperspirant active compound, a biogenic substance, an insect repellent active compound, a bleaching agent, an antioxidant, a bleach, an antibacterial substance, an antifungal substance, a flavor, a fragrance, an acid, an alkali, and an enzyme, and wherein the carrier is a precipitated silica, a BET surface area of the precipitated silica is from 400 to 500 m 2 /g, a particle size d 50 of the precipitated silica, determined by laser diffraction, is from 4 to 6 μm, and a DBP (dibutyl phthalate) absorption of the precipitated silica, in g DBP/100 g silica, is from 300 to 350.