Process for hardening a bisphenol A type epoxy resin.

摘要

Disclosure is a novel hardening agent for epoxy resins which has quick cold hardening ability and high safety for human bodies. This hardening agent hat the general formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="24" wi="46" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>(wherein
<Chemistry id="chema02" num="0002"><Image id="ia02" he="10" wi="8" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>is
<Chemistry id="chema03" num="0003"><Image id="ia03" he="11" wi="9" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>or
<Chemistry id="chema04" num="0004"><Image id="ia04" he="10" wi="11" file="IMGA0004.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>.Epoxy resins hardened with this hardening agent have excellent mechanical properties at high temperatures.