US 11,992,794 B2
Methods of plugging honeycomb bodies
Alejandro Aguilar, Painted Post, NY (US); Richard Dominic Bomba, Horseheads, NY (US); Kevin Eugene Elliott, Horseheads, NY (US); Christopher Lane Kerr, Tioga, PA (US); and Patrick David Tepesch, Corning, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 17/257,400
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Jun. 26, 2019, PCT No. PCT/US2019/039163
§ 371(c)(1), (2) Date Dec. 31, 2020,
PCT Pub. No. WO2020/009851, PCT Pub. Date Jan. 9, 2020.
Claims priority of provisional application 62/693,658, filed on Jul. 3, 2018.
Prior Publication US 2021/0268418 A1, Sep. 2, 2021
Int. Cl. B01D 46/00 (2022.01); B01D 46/24 (2006.01); B28B 11/00 (2006.01)
CPC B01D 46/0001 (2013.01) [B01D 46/2459 (2013.01); B28B 11/007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of plugging a honeycomb body, comprising the steps of:
applying a mask layer to the honeycomb body comprising a plurality of channels;
forming a plurality of holes in the mask layer such that the plurality of holes are aligned with the plurality of channels;
positioning a nozzle defining an opening proximate the mask layer, the positioning further comprising forming a gap between the nozzle and the mask layer of from about 0.1 mm to about 2 mm;
moving at least one of the nozzle and the honeycomb body relative to one another; and
passing a plugging cement through the opening defined by the nozzle against the mask layer such that the plugging cement passes through the plurality of holes in the mask layer and enters the plurality of channels of the honeycomb body.