The invention provides antioxidant compounds of formula
These are made by reacting the corresponding phenol monoacrylates and disubstituted phosphonites, and are effective to stabilize organic substances, especially polyolefins against deterioration by heat, light and oxidation. A stabilized polyolefin composition preferably contains such stabilizer plus phenol-type (and optionally sulfur-containing) antioxidant.
本发明提供了如下式的抗氧化化合物
这些化合物由相应的
苯酚单
丙烯酸酯和二取代
膦酸盐反应而成,可有效稳定有机物质,特别是聚烯烃,防止其受热、光和氧化而变质。稳定聚烯烃组合物最好含有这种稳定剂和苯
酚类(可选含
硫)
抗氧化剂。