| 摘要 |
<p>The agents comprise a mixture of (A) an adduct of a polyethylenepolyamine or a polypropylenepolyamine with an aliphatic or aromatic diglycidy! ether and (B) an aminoalcohol containing at least two aliphatic amino-hydrogen atoms, especially an adduct of a poly(aminoamide) with certain monoepoxides. A) has the formula and B) the formula where R1 represents a C2-C60 hydrocarbon radical having amino or amido nitrogen in the chain, optionally substituted by amino or alcoholic hydroxy groups, being such that B) contains at least two aliphatic amionnitrogen hydrogen atoms, R2 represents R3 represent the residue (mol. weight 56 to 50,000) of an at least dihydric alcohol or phenol, p is an integer of average value 1 to 1.5, q is an integer of 1 to 5, R4 represents a hydrogen atom, C1-C3 alkyl, phenyl, cresyl, chlorophenyl group, or a group a R5OCH2-, R5 represents a C1-C18 residue of a monohydric aliphatic, cycloaliphatic, or araliphatic alcohol or of a monohydric phenol and R6 is a hydrogen atom or a methyl group. These agents are valuable hardeners for epoxy resins, whereby the curable epoxy resin mixture cures rapidly at room temperature to give chemically-resistant, hard, glossy finishes.</p> |
