N-hydrocarbyloxy hindered amine light stabilizers substituted with phosphorus moieties
申请人:CIBA-GEIGY AG
公开号:EP0389430A1
公开(公告)日:1990-09-26
N-Hydrocarbyloxy derivatives of phosphorus substituted 4-amino- and 4-hydroxy-2,2,6,6-tetramethylpiperidine are effective light stabilizers for polymer compositions. These phosphorus compounds include phosphites and cyclic phosphites such as 1,3,2-dioxaphospholanes, 1,3,2-dioxaphosphorinanes, 1,3,2-oxazaphospholidines, 1,3,2-diazaphospholidines, 1,3,2-dioxaphosphocins, 1,3,2-dioxaphosphepins and 2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecanes.
磷取代的 4-氨基和 4-羟基-2,2,6,6-四甲基哌啶的 N-烃氧基衍生物是聚合物组合物的有效光稳定剂。这些磷化合物包括亚磷酸盐和环状亚磷酸盐,如 1,3,2-二氧磷烷、1,3,2-二氧磷杂环烷、1,3,2-噁磷烷、1,3,2-二氮磷烷、1,3,2-二氧磷杂环烷、1,3,2-二氧磷杂环烷和 2,4,8,10-四氧杂-3,9-二磷杂螺[5,5]十一烷。