Polyepoxide/polyether mono- or polyamine precursor reacted with mono- or polyamine, epoxy resin-amine adduct and monoepoxide-amine adduct
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United States of America Patent
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Jun 25, 2002
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N/A
app pub date -
May 9, 2001
filing date -
Mar 23, 2000
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Abstract
A curing agent for epoxy resin comprises: a) a reaction product of at least one polyalkylene polyether monoamine and/or polyamine with a polyepoxide and, optionally, a monoepoxide to obtain an epoxide group-containing precursor, the precursor further reacted with a primary monoamine and/or a primary or secondary polyamine in at least a 10% molar excess relative to the epoxide groups of the precursor, the reaction product being substantially free of non-reacted amines; b) an amine-terminated adduct of an epoxy resin and a primary monoamine and/or a primary or secondary polyamine being substantially free of non-reacted amines; and c) an amine-terminated adduct of an epoxide group-containing reactive thinning agent and a primary monoamine and/or a primary or secondary polyamine being substantially free of non-reacted amines.
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