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Title:
高多孔性ハニカムおよびその製造方法
Document Type and Number:
Japanese Patent JP4795958
Kind Code:
B2
Abstract:
A ceramic honeycomb substrate for use in an automotive catalytic converter system which exhibits improved light-off performance by virtue of a high porosity of 45 to 75% while still maintaining a wall thickness of greater than 2.0 mil (0.0020 inch, 0.0508 mm), preferably 2.5 mil (0.0025 in., 0.0635 mm) to 7 mil (0.0070 in., 0.1778 mm), and more preferably 2.5 mil (0.0025 in., 0.0635 mm) to 3 mil (0.0030 in., 0.0762 mm). The median pore size is in the range of 2-10 micrometers, and a coefficient of thermal expansion (CTE) (25-800° C.) of less than 15×10−7/° C.

Inventors:
Fu, Xiao Dong Earl
Hou, Jun
Wight, John F. Jr.
Application Number:
JP2006533959A
Publication Date:
October 19, 2011
Filing Date:
September 21, 2004
Export Citation:
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Assignee:
CORNING INCORPORATED
International Classes:
F01N3/28; B01D53/86; B01J21/08; B01J32/00; B01J35/04; B01J37/00; B01J37/08; C04B26/28; C04B38/00; F01N3/10
Domestic Patent References:
JP2003511331A
JP2001187344A
JP2000239059A
JP2003534229A
Foreign References:
WO2003078352A1
Attorney, Agent or Firm:
Yanagita Seiji
Hiroshi Higuchi
Go Sakuma