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US 6,350,843 B1Granted
Epoxy resin low electronic impedance high molecular polymer
OwnerHsu San Fainventor
Life of this patent
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Abstract
Conductive thermosetting epoxy resins are produced by mixing a metallic salt or oxide with an inorganic acid to form a metallic ion solution. An alcohol is added to effect a secondary dehydration and form a complex ion polymer with double bonds and p electrons. The mixture is neutralized to produce a high molecular weight polymer of low electronic impedance. This polymer is then copolymerized with an epoxy resin.
Claims10
A thermosetting epoxy resin prepared by;
- adding a metallic salt or oxide, which metallic salt or oxide is soluble in an inorganic acid and water or an alcohol, to an inorganic acid in a solvent selected from the group consisting of alcohol and water to produce a metallic cation;
- adding an alcohol to form a complex ionic polymer double bonds and hydroxyl groups and p electrons carrying a positive charge;
- adding an alkali solution to neutralize the mixture to produce a low electronic impedance high molecular weight polymer intermediate of equation II
- adding an epoxy resin containing epoxy groups according to equation IV
- adding a cross-linking agent;
- and
- stirring the mixture to from a thermosetting epoxy resin according to equation V
- wherein the inherent volume resistance of the thermosetting epoxy resin reaches 10−2 (Ω/cm).
5 more elements
Dependencies are inferred from the claim text.