Method for vacuum drying thixotropic agents and the resultant lo

Details Method for vacuum drying thixotropic agents and the resultant lo Method for vacuum drying thixotropic agents and the resultant lo

1989-03-10

1990-10-30

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Clay containing

C04B 3330

Patent

active

049668714

ABSTRACT:
A method for producing an attapulgite clay which retains its thixotropic properties, but does not release gases upon being compounded and cured in organic binder systems, such as plastisol. The method involves reducing the moisture content of the attapulgite by heating it under vacuum at an elevated temperature, preferably between 100.degree. C. and 300.degree. C., to preserve its thixotropic properties.

REFERENCES:
Hackh's Chemical Dictionary, 5th Edition, p. 60.
Grim, Ralph E., Clay Mineralogy, McGraw-Hill, 1953, pp. 114, 154, 345-347, 383.
Haden, W. L., Jr. (Patten, ed.), "Hydrated Magnesium Silicate," Pigment Handbook, vol. 1, Wiley-Interscience, 1973, pp. 269-273.

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