| abstract |
PURPOSE: To obtain titled flame-retardant highly effective with only a small amount, thermally stable, with outstanding heat resistance, free from any odor and coloring, by reaction between a halogenated dihydroxyl compound and halogenated monoglycidyl ether. n CONSTITUTION: The objective flame-retardant with a molecular weight of 700W 1,400, pref. of formula III, can be obtained by reaction between (A) a halogenated dihydroxyl compound of formula I (X is halogen; m and n are each 1W2; R 1 is 1W4C alkylidene or alkylene) [e.g., bis(4-hydroxy-2-bromophenyl)methane] and (B) a halogenated monoglycidyl ether of formula II(l is 1W3; R 2 is H 1W4C alkyl) (e.g., monochloro-phenyl monoglycidyl ether) in a molar ratio (A)/(B) of 1/1W3. n COPYRIGHT: (C)1984,JPO&Japio |