Binder for dry sand mold and method of its usage

Details Binder for dry sand mold and method of its usage Binder for dry sand mold and method of its usage

1986-07-22

1987-09-08

Lin, Koang Y.

Metal founding

Process

Shaping a forming surface

164525, 523139, 524549, B22C 122

Patent

active

046917594

ABSTRACT:
The present invention provides a binder for foundry sand which comprises a hydrolyzate of a butadiene/maleic anhydride copolymer, a neutralized or a partially neutralized substance of the hydrolyzate, a modified substance prepared by modifying the hydrolyzate with a basic organic compound, or a mixture thereof.

REFERENCES:
patent: 3005245 (1961-10-01), Howard

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