Ceramic materials for 4-way and NOx adsorber and method for...

Details Ceramic materials for 4-way and NOx adsorber and method for... Ceramic materials for 4-way and NOx adsorber and method for...

2011-04-26

2011-04-26

Lorengo, Jerry (Department: 1731)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C501S080000, C501S107000

Reexamination Certificate

active

07932201

ABSTRACT:
Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a≦0.95; 0≦b≦0.5, 0.0≦c≦0.10, and 0≦d≦0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.

REFERENCES:
patent: 4758542 (1988-07-01), Parker
patent: 5167885 (1992-12-01), Rice et al.
patent: 5384290 (1995-01-01), Brezny
patent: 6677272 (2004-01-01), Beall et al.
patent: 7259120 (2007-08-01), Ellison et al.
patent: 2006/0021309 (2006-02-01), Merkel
patent: 2007/0140928 (2007-06-01), Beall et al.
patent: H10-005600 (1998-01-01), None

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