Article coated with kured homogeneous thermoset resin/thermoplastic particles
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United States of America Patent
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Apr 11, 1995
Issued Date -
N/A
app pub date -
Jul 1, 1994
filing date -
Jan 19, 1990
priority date (Note) -
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Abstract
A woven or nonwoven web, or film (e.g. polyimide) or foil is coated with a homogeneous cured composition comprising a liquid mixture of thermosettable resin(s) such as a polyepoxide and curative(s) such as aromatic polyamines and particles of an amorphous thermoplastic polymer such as a polyetherimide. The particles have an average diameter of from 0.5-50 micrometers, a surface area of at least 1.0 m.sup.2 /g, a dissolution temperature of at least 50.degree. C., and are insoluble in the thermosettable resin at temperatures of up to 15.degree. C. below the dissolution temperature but are completely dissolved at a temperature of at least 20.degree. C. below the cure temperature of the resin.
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