| abstract |
NEW MATERIAL: Antioxidant compds. represented by formula I [wherein x and y are each 1, 2 or the like; when x is 1 and y is 1, An is a group of formula II [in which R 1 is 4-8C t-alkyl, R 11 is -C(=O) or the like]; Y is absent; R is 4-10C t-alkyl, 2-13C t-aralkyl or the like; X is absent or group of formula III (in which R 3 is 1-4C lower alkyl; R 4 is 2-4C alkylene or the like; Z is -NH-R 6 - NH- (R 6 is absent or 2-10C alkylene); -(*) shows the position of -OO-]. n EXAMPLE: t-Butyl peroxy-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate. n USE: Polymn. initiators and curing agents for resins. n PREPARATION: Compds. of formula I are obtained by reacting a reactive acid halide and an antioxidant having a chloroformato group with a t-alkyl hydroperoxide. n COPYRIGHT: (C)1990,JPO |