Curable epoxy resin composition for structural parts containing polyamine derived mannich base and novolac or bisphenol F epoxy resin
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United States of America Patent
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Dec 24, 1991
Grant Date -
N/A
app pub date -
Feb 16, 1990
filing date -
Mar 7, 1989
priority date (Note) -
Expired
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Abstract
A curable epoxy resin composition comprises (I) an epoxy resin and (II) a curing agent. It may comprise (III) another curing agent. It is preferable for it to comprise 25 to 95 wt.% of (I) and 5 to 45 wt.% of (II). 1 an epoxy resin (I) represented by the general formula: ##STR1## wherein Z represents a group selected from among a hydrogen atom, a methyl group and an ethyl group, R represents a group selected from among a hydrogen atom and alkyl groups, and n represents a number of 0 to 1.6, and 2 a curing agent comprising a polyamine reaction composition (II) obtained by reacting 1 mol of a phenol (II-1) having at least one unsubstituted reactive site in the aromatic nucleus with at least 1 mol of an aliphatic polyamine (II-2) and at least 1 mol of a carbonyl compound (II-3) having at least one carbonyl group in the molecule.
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