Filler materials for spiral gaskets

Details Filler materials for spiral gaskets Filler materials for spiral gaskets

1991-08-26

1992-04-21

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501108, 501123, C04B 3580

Patent

active

051067900

ABSTRACT:
A filler material for spiral gaskets has: 36.5 weight percent or more fibrous material, composed of 5 to 20 weight percent ceramic fibers, 13.5 to 25 weight percent sepiolite and 1 to 10 weight percent organic fibers; 59 weight percent or less inorganic powder; and 1 to 10 weight percent organic polymeric binder. The filler material of the present invention may be used as a substitute for conventional asbestos filler material in spiral gaskets and is superior to asbestos filler material in heat resistance.

REFERENCES:
patent: 4810677 (1989-03-01), Heinze et al.
patent: 5053175 (1991-10-01), Berchall et al.

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