Hydraulic barrier composition and method of making the same
US9550879B2 · kind B2 · utility
7Cited by
3References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydraulic barrier composition can include granules of a water-swellable clay and a water-soluble polymer. Upon contact with a leachate at least portion of the polymer is solvated by the leachate and becomes entrapped in at least one of clay pores, at clay platelet edges, and between adjacent platelets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.