BETA THREE-WEDGE CRYSTALLINE MODIFICATION OF <EMI ID=0.185 HE=3 WI=15 TI=CHI> NITRILO [TRIETHYLTRIS (<EMI ID=0.186 HE=3 WI=18 TI=CHI>-TETRA-TERT-BUTYL-<EMI ID=0.187 HE=3 WI=9 TI=CHI>-BIPHENYL-<EMI ID=0.188 HE=3 WI=9 TI=CHI>- DIYL) PHOSPHITE]

摘要

FIELD: stabilization of organic materials sensitive to oxidative, thermal or light- induced destruction. SUBSTANCE: compound I is prepared by heating melt of said compound at temperatures from 170 to 200 C by crystallization of new beta crystalline modification. Said crystalline modification is used in stabilized composition as stabilizer in amount from 0.01 to 10% based on total weight and also contains organic matter subjected to oxidative, thermal of light-induced destruction. The method also uses said crystalline modification in amount from 0.01 to 10% based on total weight. EFFECT: improved properties of the title modification. 2 cl, 5 ex, 5 tblo