申请人:EASTMAN KODAK COMPANY
公开号:EP0363270A1
公开(公告)日:1990-04-11
Disclosed are novel cyclic phosphite compounds having the formula
wherein
each R¹ is independently selected from hydrogen, alkyl, aralkyl, aryl, carboxy, alkoxycarbonyl or halogen;
each R² is independently selected from hydrogen, alkyl, aralkyl, alkoxy, aryl, carboxy, alkoxycarbonyl or halogen;
R³ is (a) hydrogen, alkyl, cyclohexyl or aryl when n is 1; (b) alkylene, cyclohexylene, cyclohexylenedialkylene, arylene or a divalent group having the formula
wherein R¹ and R² are defined above and A² is 1,3- or 1,4-phenylene when n is 2;
(c) alkanetriyl when n is 3; or alkanetetrayl when n is 4;
n is 1, 2, 3 or 4; and
A¹ is 1,3-phenylene.
Also disclosed are synthetic polymeric materials stabilized with one of the above compounds and phosphite chloride compounds from which the above compounds are prepared.
所公开的新型环状亚磷酸酯化合物具有以下式子
其中
每个R¹独立选自氢、烷基、芳烷基、芳基、羧基、烷氧羰基或卤素;
每个 R² 独立选自氢、烷基、芳基、烷氧基、芳基、羧基、烷氧羰基或卤素;
R³ 是 (a) 氢、烷基、环己基或芳基(当 n 为 1 时);(b) 亚烷基、环己基、环己基二亚烷基、芳基或具有以下式子的二价基团
其中 R¹ 和 R² 如上定义,当 n 为 2 时,A² 为 1,3- 或 1,4-亚苯基;
(c) 烷三基(当 n 为 3 时)或烷四基(当 n 为 4 时);
n 为 1、2、3 或 4;以及
A¹ 为 1,3-亚苯基。
本发明还公开了用上述化合物之一稳定的合成聚合物材料,以及制备上述化合物的亚磷酸酯氯化物。