Two component thermosettable compositions useful for producing structural reinforcing adhesives
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United States of America Patent
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-
Sep 17, 2002
Grant Date -
Aug 22, 2002
app pub date -
Oct 10, 2001
filing date -
Oct 10, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A two part system for producing structural reinforcing adhesives is provided wherein one component containing epoxy resin is combined with a second component containing a specified curative system. An aliphatic polyamine, an amidoamine, an alcohol and an adduct of a polyamine and an epoxide are present in the curative system. When a thermally activated blowing agent is utilized, the resulting foam is remarkably uniform in cell structure and has improved strength and modulus. Hollow inorganic microspheres are employed to reduce the density of the thermoset produced from the two part system.
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