Process for producing clay compositions for use in slip casting

Details Process for producing clay compositions for use in slip casting Process for producing clay compositions for use in slip casting

1997-12-10

1999-10-26

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

106486, 106487, 106DIG4, 501141, 501143, 501144, 501145, 501148, 524253, 524275, 524299, 524446, 524447, C04B 3304, C04B 3328

Patent

active

059722630

ABSTRACT:
A method of improving the strength and/or plasticity of a clay composition comprising a kandite clay and an organic additive comprising at least one water soluble compound having a plurality of basic groups wherein the organic additive is present in an amount of from about 0.05% by weight to about 0.5% by weight based on the dry weight of the kandite clay present, which method comprises treating the kandite clay by adding thereto a monovalent ion activated smectite clay or a monovalent ion activating agent for a smectite clay or both whereby the amount of monovalent ion activated non-calcined smectite clay present in the clay composition is adjusted to be in the range from about 1% by weight to about 5% by weight based upon the dry weight of the kandite clay present.

REFERENCES:
patent: 4148662 (1979-04-01), Hughes et al.
patent: 4294635 (1981-10-01), Hurley, Jr.
patent: 4915890 (1990-04-01), Koblinski
patent: 5153155 (1992-10-01), Kohut
WPI Abstract Accession No. 75-07666W/05 & DE2331263A (Inst Ind Sticlei Ceramic) Jan. 23, 1975 (see attached abstract) .

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