| 摘要 |
FIELD: chemical industry. SUBSTANCE: described is composition of synergists comprising three (2,4-ditert-butylphenyl)phosphite and combination of other phosphites. This combination includes tri(2-tert- butylphenyl)phosphite, tri-(4-tert-butylphenyl)phosphite, di(4-tert-butylphenyl)phosphite, di-(4-tert- butylphenyl)(2,6-di-tert-butylphenyl)phosphite and di(3- tert-butylphenyl)(2,4,6-tri-tert-butylphenyl)phosphite, ratios of components being as follows, wt %: tri(2,4- detert-butylphenyl)phosphite, 2.8-5.5; di(4-tert- butylphenyl)(2,4,6-tri-tert-butylphenyl)phosphite; 0.1- 0.3. EFFECT: higher synergistic effect in the course of stabilization of polyolefins. 34 ex, 3 tbl |
