Foundry binders

Details Foundry binders Foundry binders

1977-09-26

1980-06-24

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 314R, C08G 1806, C08K 510, C08L 9100

Patent

active

042094283

ABSTRACT:
A foundry composition for use in forming foundry moulds or cores comprises an aggregate mixed with a binder which includes a polyisocyanate, a polyfunctional phenol and an aliphatic polyol with the weight of the phenol exceeding that of the polyol. The composition may be used in a "cold-box" process.

REFERENCES:
patent: 2374136 (1945-04-01), Rothrork
patent: 3255500 (1966-06-01), Engel et al.
patent: 3403721 (1968-10-01), Robins et al.
patent: 3428110 (1969-02-01), Walker et al.
patent: 3925296 (1975-12-01), Stone et al.
patent: 3933727 (1976-01-01), Schmid

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