Methods of making plugged honeycomb bodies with cement patties
US12145892B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2019 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Oct 25, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2201/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of plugging a honeycomb body includes mixing a plugging mixture at a mixing temperature, wherein the plugging mixture comprises a plurality of inorganic particles, inorganic binder, organic binder, and water; dispensing the plugging mixture into a patty mold at a dispensing temperature; cooling the plugging mixture within the patty mold to a cooled temperature, such that a cement patty is formed; and pressing the cement patty into a plurality of channels in a honeycomb body, wherein the mixing temperature and the dispensing temperature are above a hydration point temperature of the organic binder in the plugging mixture, and the cooled temperature is below the hydration point temperature of the organic binder in the plugging mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.