Title:
INORGANIC FIBER SUBSTRATES FOR EXHAUST SYSTEMS AND METHODS OF MAKING SAME
Document Type and Number:
WIPO Patent Application WO2004063539
Kind Code:
A3
Abstract:
A method for rigidifying a fiber-based paper substrate for use in the exhaust system of a combustion device. In the method, a green ceramic fiber-based paper substrate is impregnated with an impregnating material. The impregnated substrate is fired to form a rigidified substrate that is suitable for use in the exhaust system of a combustion device. This rigidification process is performed at least once and, preferably, two or more times.
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Inventors:
LOUKS JOHN W
WOOD THOMAS E
TAN ZHONGSHU
YORKGITIS ELAINE M
FEMRITE TIMOTHY J
SCHORNAK ELIZABETH M
MUNOZ JUAN A
WERNER PAUL S
WOOD THOMAS E
TAN ZHONGSHU
YORKGITIS ELAINE M
FEMRITE TIMOTHY J
SCHORNAK ELIZABETH M
MUNOZ JUAN A
WERNER PAUL S
Application Number:
PCT/US2003/040475
Publication Date:
December 23, 2004
Filing Date:
December 18, 2003
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B01D39/20; B01D46/24; B01J35/04; B28B1/30; B28B7/34; C04B30/02; C04B38/00; F01N3/022; F01N3/28; (IPC1-7): C04B38/00; C04B35/14; D21H13/36; C04B30/02; C01B33/12; C04B35/80
Domestic Patent References:
| WO2003004438A2 | 2003-01-16 |
Foreign References:
| GB1440184A | 1976-06-23 | |||
| US4608361A | 1986-08-26 | |||
| US5223195A | 1993-06-29 |
Other References:
DATABASE WPI Section Ch Week 199916, Derwent World Patents Index; Class E36, AN 1999-184394, XP002303416
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