FLAME RETARDANT AND INORGANIC/ORGANIC COMPOSITE FLAME-RETARDANT COMPOSITION

摘要

A flame retardant which comprises an inorganic hydroxide and a carbodiimide-group-containing organic layer chemically bonded to the surface of the inorganic hydroxide. Examples of the carbodiimide-group-containing organic layer include a layer comprising a carbodiimide-group-containing compound represented by either of the following formulae. Due to the constitution, the flame retardant can be highly dispersed in a resin even when added in a high proportion and can give a molding inhibited from deteriorating in electrical properties, mechanical properties, etc.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(X 1 ) m -Z-[A-(R 1 -N=C=N) n -R 1 -NCO] 1 €ƒ€ƒ€ƒ€ƒ€ƒ(1)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(X 1 ) m -Z-[A-(R 1 -N=C=N) n -R 1 -A-Z-(X 2 ) 3 ] 1 €ƒ€ƒ€ƒ€ƒ€ƒ(2)
[R 1 represents a residue of an isocyanate compound; X 1 and X 2 each independently represents hydrogen, halogeno, etc.; Z's each independently represents silicon or titanium; A represents an organic group having a valence of 2 or higher containing a bond derived from an isocyanate group; m and 1 each is an integer of 1-3, provided that m+1=4; and n is an integer of 1-100.]