Additive for green moulding sands

Details Additive for green moulding sands Additive for green moulding sands

1988-03-04

1989-09-19

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164528, 106 3851, 106 389, B22C 118

Patent

active

048672289

ABSTRACT:
An additive for green moulding sands for use in foundry industry comprising a "stabilized" and polyhydroxylated carbohydrate, in particular as aqueous solution, and preferably consisting of a monosaccharidic and/or oligosaccharidic derivatives where any of the aldehydic and ketonic functions have been selectively reduced or oxidated. The additive improves the flowability and plasticity of the moulding said with a reduced moisture demand and a better surface finishing of the castings.

REFERENCES:
patent: 4194918 (1980-03-01), George et al.
patent: 4203771 (1980-05-01), Matsui
patent: 4504314 (1985-03-01), Barker et al.
patent: 4711669 (1987-12-01), Paul et al.
Patent Abstracts of Japan, vol. 9, No. 191 (M402)[1914], JP-A-60-56440.
Chemical Abstracts, vol. 106, No. 18, May 4, 1987, p. 225.
Patent Abstracts of Japan, vol. 10, No. 191 (M495) [2247], JP-A-61-37345.

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