Foundry sand compositions containing graft copolymers of biochem

Details Foundry sand compositions containing graft copolymers of biochem Foundry sand compositions containing graft copolymers of biochem

1971-10-01

1976-03-30

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

164 43, 20415912, 260 9, 260 174ST, 260 296H, 260 42, 260DIG40, C08L 500, B22C 126, B22C 122

Patent

active

039473929

ABSTRACT:
A sand core and mold composition for use in casting metals comprising foundry sand, clay, water and from about 0.0025% to about 1% by weight of a water-soluble graft copolymer of acrylic acid and a minor amount of a water-soluble polyhydroxy polymeric compound, including water-soluble salts thereof.

REFERENCES:
patent: 3640826 (1972-02-01), Lang et al.
patent: 3644113 (1972-02-01), Lang et al.

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