Heat-resistant expansion member

Details Heat-resistant expansion member Heat-resistant expansion member

1992-03-30

1993-09-07

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501128, 428327, 428454, 428913, 428331, 252378R, C04B 3502

Patent

active

052428710

ABSTRACT:
The heat resistant expansion member used as the holding member of the ceramic honeycomb monolithic catalyst in an automobile comprises 20 to 40 wt. % of sepiolite, 30 to 54 wt. % of particulate vermiculite, 20 to 40 wt. % of ceramic fibers, and 5 to 20 wt. % of organic bonding material, or 20 to 40 wt. % of sepiolite, 30 to 54 wt. % of treated vermiculite, 20 to 40 wt. % of ceramic fibers, 5 to 20 wt. % of organic bonding material, and 1 to 10 wt. % of E-glass with fiber diameter of 1 .mu.m or less, so that a large holding force is maintained whether in a low temperature region or in a high temperature region.

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.
Chem Abstracts Japanese Laid Open Patent--(Abstract) #58-208164 "Heat Resistant and Elastic Sheet--from Alpha Sepiolite, Unexpanded Vermiculite, Binder, and Ceramic Fiber has Improved Flexibility and Resilience".

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