Honeycomb structure
US6815038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/252
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A honeycomb structure constituted bycell partition walls (ribs) which form combined cells being composed of a plurality of cells adjacent to each other, anda honeycomb outer wall surrounding and holding outermost cells located at the circumference of combined cells,characterized in that cell partition walls and the honeycomb outer wall are formed by a bonded texture containing silicon carbide (SiC) as an aggregate and cordierite as a binder, and that the proportion (volume %) of silidon carbide (SiC) forming the bonded texture to the total of cordierite and silicon carbide (SiC) is 40 to 90%. This honeycomb structure can exceed required levels, in all of thermal conductivity, chemical durability, low thermal expansion and mechanical strength, producible at a low cost, and suitably used in a filter for purification of automobile exhaust gas, a catalyst carrier, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.