| 摘要 |
<p>The invention describes an oligomeric condensation product that can be obtained from at least one (hydroxymethyl)phenol of general formula (I), in which R1 is hydrogen or -CH3, R2 is -CH2OH, and R3 is hydrogen or -CH3, at least one polyamine, and optionally at least one phenol compound having two centres reactive by means of a reaction with the methylol groups of the (hydroxymethyl)phenol. Condensation products of this type can be used as polymerisation catalysts for epoxy resins, wherein a quicker curing time with comparable pot life can be achieved in 2-component epoxy resin adhesives. It is thus possible to further reduce the manufacturing times in industrial application and to develop new fields of application, in which adhesive bonding can be applied instead of a screwed connection. The above-described condensation products also have the advantage compared to similar conventional condensation products that, in the event of synthesis of these products, no toxic substances such as formaldehyde or dimethylamine have to be used or are released. The present invention also relates to a method for producing the aforementioned oligomeric condensation compounds and to the use thereof in the curing of epoxy resin systems.</p> |
