Heat-resistant expansive member

Details Heat-resistant expansive member Heat-resistant expansive member

1995-02-01

1999-08-31

Marcheschi, Michael

Compositions: ceramic

Ceramic compositions

Refractory

106 1505, 252 62, 252378R, 428331, 428913, 428920, 428327, B32B 1906

Patent

active

059453613

ABSTRACT:
The present invention relates to a heat-resistant expansive member suitably used as a holding member for holding a ceramic monolithic catalyst in a motor vehicle or the like. The heat-resistant expansive member of the present invention is made at the blending ratio of 1 to 5 wt % of sepiolite, 30 to 60 wt % of treated vermiculite, 20 to 40 wt % of ceramic fibers and 5 to 20 wt % of an organic binder, or at the blending ratio of 21 to 30 wt % of sepiolite, 30 to 40 wt % of treated vermiculite, 20 to 40 wt % of ceramic fibers and 5 to 20 wt % of an organic binder. Regardless of the low- or high-temperature zone, the heat-resistant expansive member of the present invention presents a great holding force to the monolithic catalyst or the like. The heat-resistant expansive member is improved in cushioning properties and gas-attack resisting properties particularly in the high-temperature zone.

REFERENCES:
patent: 3916057 (1975-10-01), Hatch et al.
patent: 4305992 (1981-12-01), Langer et al.
patent: 4746570 (1988-05-01), Suzaki et al.

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