EPOXY COMPOSITION Russian patent published in 1997 - IPC

FIELD: EPOXY compositions. SUBSTANCE: epoxy composition containing diane resin has aliphatic epoxy resin at ratio = (94:6)-(50:50) and hardening system - product of interaction of isomeric methyltetrahydrophthalic anhydride liquid mixture: technical isomethyltetrahydrophthalic anhydride, substituted imidazole or imidazole, $$$-caprolactam and 4,4'-bis-(N,N'-dimethylureido)-diphenylmethane taken at ratio = (95:0.2:4.6:0.2)-(55:5:35:5) and obtained by these components stirring at 60-140 C for 20-180 min. Composition has: resin part 100 mas. p. and hardening system 50-120 mas. p. Epoxy composition exhibits high hardening rate at moderate temperatures (110-125 C, not above), high working life at 20 C and low viscosity. EFFECT: high cementation strength, exploitation safety, resistance to 30000 rev/min at 130 C. 4 tbl