申请人:Ciba-Geigy Corporation
公开号:US05075482A1
公开(公告)日:1991-12-24
3,7,9-Trioxa-1-aza-2,8-diphosphaspiro[4.5]decanes of formula I ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, alkyl, cycloalkyl, bicycloalkyl, tricycloalkyl or aryl; or can be halogen when n or m is zero, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, aralkyl or aryl; X and Y are independently --O-- --S--, or --NR.sub.16 -- where R.sub.16 is alkyl, cycloalkyl, alkenyl, aryl or aralkyl; W and Z are independently O or S; and n, m, o and p are independently zero or 1, are effective in stabilizing organic materials against the deleterious effects of oxygen, heat and/or actinic radiation.
公式I中的3,7,9-Trioxa-1-aza-2,8-diphosphaspiro[4.5]decanes,其中R.sub.1和R.sub.2独立地为氢、烷基、环烷基、双环烷基、三环烷基或芳基;或当n或m为零时,可以是卤素,R.sub.3、R.sub.4、R.sub.5和R.sub.6独立地为氢、烷基、芳基烷基或芳基;X和Y独立地为--O--、--S--或--NR.sub.16--,其中R.sub.16为烷基、环烷基、烯基、芳基或芳基烷基;W和Z独立地为O或S;n、m、o和p独立地为零或1。这些化合物可以有效地稳定有机材料,抵抗氧气、热和/或光辐射的有害影响。