申请人:Ciba-Geigy Corporation
公开号:US05534646A1
公开(公告)日:1996-07-09
Substituted 1,3,2,4-diazadiphosphetidines of formula I ##STR1## where preferably, R.sub.1 and R.sub.2 are branched alkyl or aryl, m and n are 1, p and q are 0, and YR.sub.3 and XR.sub.4 are substituted --O--phenyl or --N(alkyl).sub.2, are excellent stabilizers for organic materials, particularly polyolefins.
取代的1,3,2,4-二氮杂双磷杂环丁烷的公式I化合物##STR1##,其中优选地,R1和R2是支链烷基或芳基,m和n是1,p和q是0,以及YR3和XR4是取代的-O-苯基或-N(烷基).sub.2,是有机材料的优良稳定剂,尤其是聚烯烃。