| 摘要 |
<p>Stabilised polyolefin moulding compsns. contain 0.01-3 wt. % cpd. of formula: (in which R1 and R2 independently are H or 1-9C alkyl; R3 is H or 1-20C alkyl; R4 is alkyl with 1-18C, aryl, aralkyl or alkylaryl with 7-18C; n is 1-4). Mouldings have much better resistance to extraction, as in DT 2017961.</p> |
