Granular form of a mixture of a nickel-quencher and a benzophenone and process for its preparation

摘要

Granular form of a mixture comprising: (a) a nickel-quencher corresponding to [2,2'-thio-bis(4-t-octyl-phenolate)-n-butylamine Nickel (II)]; (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone; characterized in that it has two diffraction lines at angles 2theta=17.593 and 2theta=22.023 in the X-Ray diffraction spectrum from powders. The above granular form can be used as a light stabilizer for agricultural films based on polyolefins or olefinic copolymers.