Phosphonous, phosphinous or phosphonic acid derivatives as stabilizers for organic materials
申请人:YOSHITOMI PHARMACEUTICAL INDUSTRIES, LTD.
公开号:EP0719781A1
公开(公告)日:1996-07-03
Phosphorous containing compounds of the formula (I)
wherein X1, X2, X3 and X4 are each independently a group of the formula
wherein R is a hydrogen atom or a methyl group, p is 0 or 1, q is independently 0 or 1 with regard to each repeat unit, and m is an integer of 2 to 10, a stabilizer for organic materials comprising said compound and a stabilized organic material comprising said compound. The compound of the present invention is less volatile at high temperatures. The use of the compound of the present invention as a stabilizer for organic materials affords an extremely useful organic material which is superior in heat stability and free of degradation caused by oxidation. The compound of the present invention has excellent compatibility with the above-mentioned organic materials and hardly migrate from the organic materials. Thus, the compound of the present invention can reside in the organic material for a prolonged period of time, which in turn stabilizes the organic materials in a sustained manner.
式 (I) 的含磷化合物
其中 X1、X2、X3 和 X4 各自独立地是式中的一个基团
其中 R 是氢原子或甲基,p 是 0 或 1,q 相对于每个重复单元独立地为 0 或 1,m 是 2 至 10 的整数;包含所述化合物的有机材料稳定剂和包含所述化合物的稳定有机材料。本发明的化合物在高温下挥发性较低。使用本发明的化合物作为有机材料的稳定剂,可以得到一种非常有用的有机材料,它具有优异的热稳定性,不会因氧化而降解。本发明的化合物与上述有机材料具有良好的相容性,几乎不会从有机材料中迁移。因此,本发明的化合物可以长时间驻留在有机材料中,进而以持续的方式稳定有机材料。