Molding sand mixtures

Details Molding sand mixtures Molding sand mixtures

1977-06-08

1978-12-26

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 383, 106 90, 106 93, 106 98, 260 2965, B28B 734

Patent

active

041314743

ABSTRACT:
This invention relates to mixtures of molding sand which comprise a mixture of a molding sand with a rapid hardening cement containing calcium aluminate as amorphous glass and/or crystals, and/or calcium haloaluminate, a polymer water holding agent and a lime, or mixture of a molding sand with the above-mentioned rapid hardening cement, a polymer water reducing agent, a lime, and, if necessary, a foaming agent, and in either case with water. The mixture also provides a method of mixing the ingredients except for water and then kneading the mixture with water.

REFERENCES:
patent: 3628973 (1971-12-01), Greening et al.
patent: 3664854 (1972-05-01), Kokuta
patent: 3676541 (1972-07-01), Nishi et al.
patent: 3775143 (1972-11-01), Mikhailov et al.
patent: 3854985 (1974-12-01), Suzuki et al.
patent: 3864141 (1975-02-01), Uchikawa et al.
patent: 3885985 (1975-05-01), Serafin et al.
patent: 4036659 (1977-07-01), Stude

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