申请人:Ciba-Geigy Corporation
公开号:US04649221A1
公开(公告)日:1987-03-10
Polyhydroxylamines are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the alkylated hydroxybenzoate light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.
多羟胺在稳定聚烯烃组合物方面非常有效,该组合物含有从酚类抗氧化剂、受阻胺光稳定剂、烷基羟基苯甲酸酯光稳定剂、紫外光吸收剂、有机磷化合物、脂肪酸碱性金属盐和硫协同剂中选择的稳定剂或稳定剂混合物,可抵抗高温挤出、暴露于天然气燃烧产物、γ射线照射或长时间存储时的降解。