Catalysts and binder systems for manufacturing sand shapes

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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524549, C08L 4500

Patent

active

044057261

ABSTRACT:
Aluminum perchlorate, cupric perchlorate and chromic perchlorate are used as catalysts for acid catalyzed curable resins.

REFERENCES:
patent: 3755229 (1973-08-01), Johnson et al.
patent: 4178429 (1979-12-01), Scheffer
patent: 4287092 (1981-09-01), Stewart et al.
patent: 4317763 (1982-03-01), Menting

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