Water compatible curing agents for epoxy resins

Curing agent for epoxy resin compatibility with new water. The curing agent may by following steps preparation: (a) will at least a each molecular contains at least 3 a activity amine is hydrogen Atomic of more amine and at least a faculties of for at least 1.5 of epoxy resin by ring oxygen faculties equivalent and more amine Moore than for 0.9:1-1:10 reaction, to produced amine end base intermediate; (b) will amine end base intermediate and to amine end base intermediate for benchmark meter 0.5-25wt% structure type (I), and (II) and (III) by as shown in of containing acid end base poly Asia alkyl II alcohol of compounds reaction, Which R1 for contains 1-15 a carbon Atomic of alkyl, aryl, or Fong alkyl, x and y independent to for hydrogen, methyl or b base, premise conditions is if x for methyl or b base, y for hydrogen, or if y for methyl or b base, x for hydrogen, and n+m+o for 100-200 of real, and n+o for n+m+o of at least 70%, (I) and (II) of weight than in 100:0-0:100 of range within, (I) and (III) Weight ratio in the context of 100:0-0:100, and (II) and (III) to weight ratio in the context of 100:0-0:100 until all acid is consumed so far. The amine end group sheet epoxy-curing agents blocked. The hardener also can following way preparation: (a) make at least a above more amine and epoxy resin reaction to made amine end base intermediate; (b) make the amine end base intermediate and single ring oxygen base reaction formed seal end of amine end base intermediate; subsequently (c) make seal end of amine end base intermediate and above with acid end base poly Asia alkyl II alcohol of compounds reaction.