Cement and skinning material based on a water-swellable clay, and method for producing segmented or skinned ceramic honeycomb structures
US10214451B2 · kind B2 · utility
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15References
19Claims
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Key dates
| Filing date | Dec 10, 2012 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Apr 20, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/608
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Skins and/or adhesive layers are formed on a porous ceramic honeycomb by applying a layer of a cement composition to a surface of the honeycomb and firing the cement composition. The cement composition contains a water-swellable clay, high aspect inorganic filler particles and water, and are nearly or completely devoid of particles smaller than 100 nm and a cellulosic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.