Vermiculite moulding compositions and articles made therefrom

Details Vermiculite moulding compositions and articles made therefrom Vermiculite moulding compositions and articles made therefrom

C - Chemistry, Metallurgy

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C04B 30/00 (2006.01) C04B 12/00 (2006.01) C04B 14/20 (2006.01) C04B 32/00 (2006.01) F16J 15/06 (2006.01) F16J 15/10 (2006.01)

Patent

CA 1287704

ABSTRACT OF THE DISCLOSURE A moulding composition comprising particles of gas- exfoliated vermiculite (a category which includes thermally exfoliated vermiculite) contains as binder very fine particles (diameter below 50 µm) of vermiculite from which interstitial magnesium ions have been at least partially removed and which has been swollen in water. The composition is particularly suitable for the manufacture of articles required to function in air at temperatures above 250°c, such as gaskets for the exhaust systems of internal combustion engines.

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