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 2 theta = 17.593 and 2 theta = 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.