申请人:Ciba-Geigy Corporation
公开号:US04238613A1
公开(公告)日:1980-12-09
Polyalkylpiperidinylesters and N-polyalkylpiperidinylamides of substituted malonic acids, methane tricarboxylic acids, .beta.-keto-, .alpha.-cyano-, .alpha.-phosphono- or .alpha.-sulfonocarboxylic acids are excellent stabilizers for polymers, especially against photochemical degradation. Polymers which can be stabilized in this way very effectively are polyolefins, styrene homo- and copolymers, polyamides and polyurethanes.
聚烷基哌啶酯和取代马隆酸、甲烷三羧酸、β-酮、α-氰基、α-膦酸或α-磺酸羧酸的N-聚烷基哌啶酰胺是聚合物的优秀稳定剂,特别是对光化学降解的稳定性。可以通过这种方式非常有效地稳定的聚合物包括聚烯烃、苯乙烯均聚物和共聚物、聚酰胺和聚氨酯。