Porous support
US5094997A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Jul 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous support of the present invention comprises a laminate which is formed by laminating a corrugated sheet, in which high and low wave portions coexist, and a flat sheet, and which is wound into a spiral form. The porous support is particularly used as a catalyst support for purifying automobile exhaust gas. Appropriate combination of the high and the low wave portions in the corrugated sheet permits the selection of any one of various cross-sectional forms such as a conventional circular form, a race track-like form, a broad bean-like form, a triangular form and other suitable forms. The degree of freedom of the form can be thus increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.