| 摘要 |
A honeycomb filter for exhaust gas purification, possessing a honeycomb structure ( 1 ) having a plurality of through-holes which are separated from each other by porous partition walls and plugged alternately at the exhaust gas inlet face ( 2 ) and the exhaust gas outlet face ( 3 ), wherein the honeycomb structure ( 1 ) has a slit ( 5 ) possessing an opening at least at the exhaust gas inlet face ( 2 ), and the slit ( 5 ) is partially filled with a filler ( 6 ) in a depth of 3 to 25 times the width ( 5 d) of slit from the exhaust gas inlet face ( 3 ) toward a flow direction ( 10 ) of exhaust gas and a gap ( 5 e) is formed inside from a portion of the slit filled with the filler ( 6 ). This honeycomb filter for exhaust gas purification has high purification ability, yet possesses high thermal shock resistance, and can be used continuously over a long period.
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