申请人:PPG Industries, Inc.
公开号:US04414396A1
公开(公告)日:1983-11-08
Polyhalophthalimidoalkyl-functional carbonates may be employed as fire retardant additives to polymers. Examples of such carbonates are 2-(tetrabromophthalimido)ethyl 2,4,6-tribromophenyl carbonate, 2-(tetrabromophthalimido)ethyl pentabromophenyl carbonate and bis[2-(tetrabromophthalimido)ethyl] carbonate. Polyhalophthalimidoalkyl haloformates, N-(hydroxyalkyl)-polyhalophthalimides, and 2-(hydroxyalkylcarbamyl)-polyhalobenzoic acids are useful as intermediates in the preparation of the carbonates.
聚卤代酞酰亚烷基碳酸酯可以作为聚合物的阻燃添加剂。这种碳酸酯的例子包括2-(四溴代酞酰亚)乙基2,4,6-三溴苯基碳酸酯、2-(四溴代酞酰亚)乙基五溴苯基碳酸酯和双[2-(四溴代酞酰亚)乙基]碳酸酯。聚卤代酞酰亚烷基卤甲酸酯、N-(羟基烷基)-聚卤代酞酰亚胺和2-(羟基烷基氨基甲酰基)-聚卤代苯甲酸是制备碳酸酯中间体时有用的。