Refractory mortar cured material

Details Refractory mortar cured material Refractory mortar cured material

2008-02-21

2010-10-26

Sample, David R (Department: 1783)

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

C428S315700, C501S095200, C501S109000, C501S120000, C501S128000, C501S133000

Reexamination Certificate

active

07820278

ABSTRACT:
A refractory mortar cured material is formed in the surface or joint portions of a ceramic refractory material, such as fire bricks used in the lining of melting furnace or firing furnace used at high temperature, and includes ceramic particles with an inorganic binder having silanol group that are kneaded together with water. The kneaded mortar is applied on the surface of a ceramic base material. The average particle size of ceramic particles in the refractory mortar is 10 to 50 μm, and the difference between the 90% particle size and the 10% particle size is 10 μm or more to 60 μm or less. The average pore size of the refractory mortar cured material is 5 to 25 μm, and the width of pore size distribution is 20 to 80 μm, so that the cracks are suppressed. In addition, the bulk density is 0.9 to 1.5 g/cm3.

REFERENCES:
patent: 7112233 (2006-09-01), Ohno et al.
patent: 2002/0004445 (2002-01-01), Beall et al.
patent: 2006/0101747 (2006-05-01), Masukawa et al.
patent: 2006/0121240 (2006-06-01), Hirai et al.
patent: 2004075524 (2004-03-01), None
patent: 2004-231506 (2004-08-01), None
Machine English Translation of Suwabe—JP—2004/075524—A, “Manufacture of Ceramic Honeycomb Structure”, Mar. 11, 2004, JPO, pp. 1-19.

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