Accelerators for refractory magnesia

Details Accelerators for refractory magnesia Accelerators for refractory magnesia

1993-01-28

1993-09-28

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523139, 525504, 525505, 525506, 528129, B22C 122

Patent

active

052487075

ABSTRACT:
The hardening of a composition containing a phenolic resin solution and a magnesia aggregate is effected by mixing into such composition at a pH of at least 4.5: a compound which provides an acetate, adipate, 4-aminobenzenesulfonate, 1,2,4-benzenetricarboxylate, formate, glycolate, lactate, nitrate, benzenesulfonate, naphthalenesulfonate, methanesulfonate, phenolsulfonate, succinate, sulfamate, or toluenesulfonate anion to the composition; or an acetylacetone, 2-nitrophenol, 4-nitrophenol, salicylaldehyde compound; or a mixture of said compounds.

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