The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2010
Filed:
Jul. 17, 2006
Jong Sik Choi, Daejeon, KR;
Young Min Kong, Daejeon, KR;
Hoon Ahn, Daejeon, KR;
Sun Joo Kim, Daejeon, KR;
Seong Moon Jung, Daejeon, KR;
Dae Gon Han, Daejeon, KR;
Jong Sik Choi, Daejeon, KR;
Young Min Kong, Daejeon, KR;
Hoon Ahn, Daejeon, KR;
Sun Joo Kim, Daejeon, KR;
Seong Moon Jung, Daejeon, KR;
Dae Gon Han, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A ceramic filter and method for preparing the same. The method for preparing the ceramic filter according to the present invention is characterized in comprising the steps of: (a) coating firstly a ceramic green paper prepared by using a slurry solution comprising ceramic fiber of 0.1-10 mm length, with an aluminum silicate solution and drying the firstly coated paper; (b) coating secondly the dried ceramic green paper with an aluminum phosphate solution and drying the secondly coated paper; and (c) calcining the dried ceramic green paper obtained from the step (b). The ceramic filter according to the present invention has excellent mechanical strength since the bonding strength between ceramic fibers is very high, and shows good porosity, gas permeability, and efficiency for capturing microparticles since the pores between the ceramic fibers are less blocked, and thus can be very usefully applied to gas exhaustion system for automobile.