Preparation of ceramic honeycomb structure having selectively sealed channels
US5062911A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1989 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1057
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ceramic honeycomb structures having channels that are selectively sealed at alternate faces of the honeycomb are prepared by applying an end cap made up of green ceramic material to each face of a green ceramic honeycomb body, followed by exposing the openings of certain channels of the honeycombs through the cap at one face and exposing the remaining channels through the cap at the other face. Thereafter, the composite capped structure is fired. The honeycombs are useful in a variety of filtering, separating, or concentrating operations in which a work fluid or component thereof is intended to pass through the walls of the channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.