A fire retardant system comprising a compound having within its structure the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione or 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanophthalene-5,8-dioxy nucleus or a compound which is capable of being converted to the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione nucleus and requires no metal oxide addition to exert its function.
一种阻燃系统,包括一种化合物,在其结构中具有1,2,3,4,9,9-六卤代-1,4-二
氢-1,4-
甲基萘-5,8-二
酮或1,2,3,4,9,9-六卤代-1,4-二
氢-1,4-
甲基萘-5,8-二
氧核,或者一种能够转化为1,2,3,4,9,9-六卤代-1,4-二
氢-1,4-
甲基萘-5,8-二
酮核且不需要添加
金属氧化物即可发挥其功能的化合物。