Sintered porous plastic liquid barrier media and applications thereof
US9370731B2 · kind B2 · utility
4Cited by
65References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This application discloses porous self-sealing media comprising a sintered mixture of an absorbent material and a thermoplastic. The self-sealing media block passage of organic solvents or organic solvents in aqueous mixtures, wherein the organic solvents are at concentrations greater than about 40%. The self-sealing media also block acidic solutions. The self-sealing media are useful in a variety of applications such as a pipette tip filter, in line filter, vent, non-mechanical check valve, safety valve, and suction canister.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.