Various 1,4-disubstituted-2,3,5,6-tetrohydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.
本发明公开了各种 1,4-二取代-2,3,5,6-四羟基-1,4-二
磷杂环戊烷、其氧化物和
硫化物、其生产方法以及含有它们的阻燃物质组合物。