Catalyst for curing resins
OwnerKarl D. Schefferinventor
Life of this patent
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Abstract
Process and catalyst for curing resins (e.g. furans) comprising concentrated aqueous solutions of perchloric acid (about 45-72%) and the cured resins obtained using said catalyst. Improved catalyst combinations for curing resins in a process employing same and the cured resin produced thereby comprising concentrated perchloric acid, a small amount of phosphoric acid and/or a small amount of boric acid.
Claims31
A resin curing catalyst comprising an aqueous solution of perchloric acid in a concentration of about 45 to about 72% based on weight.
A process of curing an acid catalyzed curing resin which comprises admixing said resin with an aqueous solution of perchloric acid containing about 45 to about 72% by weight of acid.
A cured resin composition comprising an acid catalyzed curing resinous compound having relatively uniformly distributed throughout same concentrated perchloric acid.
Dependencies are inferred from the claim text.