申请人:Ciba-Geigy Corporation
公开号:US04322531A1
公开(公告)日:1982-03-30
The invention relates to diazaphospholanes and diazaphosphorinanes of the formula I ##STR1## in which m is 0 or 1, n is 1 or 2 and R.sup.1 to R.sup.4 are as defined in claim 1. These compounds are effective light stabilizers for organic materials, especially for polymers. In addition, they can also possess an antioxidant and/or a flame retardant action. They can be obtained from the corresponding diamines by a cyclization reaction with the phosphorus dichlorides R.sup.3 P(O).sub.m Cl.sub.2.
该发明涉及公式I的二氮磷环丙烷和二氮磷环丙酮类化合物
其中m为0或1,n为1或2,R^1至R^4如权利要求1中所定义。这些化合物对有机材料,特别是对聚合物具有有效的光稳定剂作用。此外,它们还可以具有抗氧化和/或阻燃作用。它们可以通过将相应的二胺与磷二氯化物R^3P(O)mCl2进行环化反应而获得。