Gas filtration media
US7604687B2 · kind B2 · utility
1Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2006 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Dec 20, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas filtration media comprises a microporous membrane. The microporous membrane includes an ultrahigh molecular weight polyethylene (UHMWPE), an inorganic material, wherein the ratio of inorganic material to polymer is in the range of 4:1 to 1:4, and less than 30% by weight of the membrane being a processing oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.