摘要：

Producing zinc oxide particles, in which the zinc oxide is present in particulate form as core-shell particles, comprises: (a) adding a filler, an alkaline solid and/or an alkaline solution and a zinc salt or a solution of a zinc salt to a solvent, preferably a protic polar solvent; (b) separating the resulting precipitate, optionally washing the precipitate with a protic polar solvent, preferably water; and (c) drying the precipitate at 60-300[deg] C, preferably 100-120[deg] C for more than two hours, preferably 8-15 hours, under reduced pressure of less than 1000 mbar, preferably 800 mbar. Producing zinc oxide particles, in which the zinc oxide is present in particulate form as core-shell particles, comprises: (a) adding a filler, an alkaline solid and/or an alkaline solution and a zinc salt or a solution of a zinc salt to a solvent, preferably a protic polar solvent, where the order of the addition is variable; (b) separating the resulting precipitate, optionally washing the precipitate with a protic polar solvent, preferably water; and (c) drying the precipitate at a temperature of 60-300[deg] C, preferably 100-120[deg] C for more than two hours, preferably 8-15 hours, preferably under reduced pressure of less than 1000 mbar, preferably 800 mbar. INDEPENDENT CLAIMS are also included for: (1) a core-shell particle comprising a core and a shell, where the core exhibits at least one inert inorganic material and the shell exhibits zinc oxide, obtained by the above method; (2) vulcanizable mixture comprising the zinc oxide as core-shell particle obtained by the above method and at least one vulcanizable component and optionally at least one additive; and (3) vulcanized article obtained by vulcanization of the vulcanizable mixture.

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