申请人:Ciba-Geigy Corporation
公开号:US05216156A1
公开(公告)日:1993-06-01
1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer.
1-烃氧基-2,2,6,6-四甲基哌啶的衍生物与具有羟基、氨基、羧基、环氧基、异氰酸酯等功能团的s-三嗪反应,能够与含有酐、环氧化合物、烷氧甲基三聚氰胺或异氰酸酯基团的聚合物底物进行化学键合。这种化学键合防止了在稳定聚合物的后续加工或最终使用过程中稳定剂的迁移或损失。