HARDENING AGENTS FOR EPOXIDE RESINS Russian patent published in 2003 - IPC

FIELD: polymer materials. SUBSTANCE: invention provides hardening agent for glycidyl ethers and esters and glycidylamine-type resins having general formula I: (I), in particular 1-aminopiperidine, 1-aminohomopiperidine, 1-aminopiperazine, 1-amino-N'- methylpiperazine, N,N,-diaminopiperazine, N-aminomorpholine, N- aminoaziridin, N-aminoazacycloundecene, N- aminothiomorpholine, and 1-amino- 4-octylpiperazine, or their salts. Another embodiment of invention envisages using, along with compound 1 or its salt, 0.8 to 3.0 mole water per 1 mole hardening agent, which accelerates hardening. Hardening process consists in mixing epoxide resin with hardening agent and water for following hardening at temperature from 0 to -20 C. EFFECT: enabled low-temperature hardening. 3 cl, 4 tbl, 9 ex