Triazine derivatives of the formula: [(NCO).sub.3 R.sub.1 R.sub.2 R.sub.3 ].sub.n (I) are described, wherein: R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent a ring perhalogenated benzyl and/or xylylidene, and which are bonded to the triazine ring on the N atoms when the ring is saturated, or on the O atoms when the ring is unsaturated, and n is an integer between 1 and 5. The invention is further directed to flame-retardant compositions and to plastic compositions which comprise a compound of formula I.
本文描述了公式为[(NCO).sub.3 R.sub.1 R.sub.2 R.sub.3 ].sub.n (I)的三嗪衍
生物,其中:R.sub.1,R.sub.2和R.sub.3相同或不同,表示一种环状多卤代苯基和/或二
甲苯基,当环饱和时,它们与
三嗪环上的N原子结合,当环不饱和时,则与O原子结合,n是1至5之间的整数。本发明还涉及阻燃组合物和塑料组合物,其中包括公式I的化合物。