(19)
(11) EP 1 245 360 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.10.2003 Bulletin 2003/41

(43) Date of publication A2:
02.10.2002 Bulletin 2002/40

(21) Application number: 02006786.4

(22) Date of filing: 25.03.2002
(51) International Patent Classification (IPC)7: B28B 11/00, C04B 38/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 26.03.2001 JP 2001088345
26.02.2002 JP 2002049695

(71) Applicant: Denso Corporation
Kariya-city, Aichi-pref., 448-8661 (JP)

(72) Inventors:
  • Ishihara, Mikio
    Kariya-city, Aichi-pref., 448-8661 (JP)
  • Nishimura, Mamoru
    Kariya-city, Aichi-pref., 448-8661 (JP)

(74) Representative: Leson, Thomas Johannes Alois, Dipl.-Ing. 
Tiedtke-Bühling-Kinne & Partner GbR, TBK-Patent, Bavariaring 4
80336 München
80336 München (DE)

   


(54) Plugging method for ceramic honeycomb body


(57) This invention provides a plugging method, for a ceramic honeycomb body, that does not create clearance in plug members closing cell end portions. To produce a ceramic honeycomb body 5 having a large number of cells 55 partitioned by partitions 51 and cell end portions 50 plugged by plug members, end faces of the ceramic honeycomb body are immersed in a plug member slurry 1 while the cell end portions 50 not provided with the plug member are covered with a masking material 90, and are then dried and heated. The plug member slurry 1 contains ceramic particles, a foaming material and water or an oil solvent.






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