| http://www.w3.org/ns/prov#value | - High molecular weight epoxy resins have been previously prepared by reacting phenolic compounds with epoxide compounds in the presence of such catalysts as inorganic bases, amines, ammonium salts, phosphine and phosphonium salts such as described in U.S. Pat. Nos. 3,284,212; 3,547,881; 3,477,990; 3,948,855 and 4,438,254.
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