PREPOLYMER EPOXY RESIN MIXTURE WITH OXAZOLIDINONE STRUCTURES.

摘要

PCT No. PCT/DE93/00583 Sec. 371 Date Mar. 27, 1995 Sec. 102(e) Date Mar. 27, 1995 PCT Filed Jul. 2, 1993 PCT Pub. No. WO94/02524 PCT Pub. Date Feb. 3, 1994.In a process for producing a prepolymer epoxy resin mixture with oxazolidinone structures, an insoluble reaction resin powder which has no isocyanate groups and consists of an epoxy resin mixture containing a reaction accelerator and filler and having isocyanurate structures, is fed to a continuously working reactor and reacted at temperatures up to 200 DEG C., with reactor temperature at 140 DEG -190 DEG C., and then the extruded material is cooled down to a temperature of <50 DEG C. with the aid of a cooling device mounted at the outlet die of the reactor.