Landfill cap and method of sealing landfill
US5562586A · kind A · utility
15Cited by
13References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1994 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jun 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cap for sealing waste in a landfill is prepared by disposing a fill layer atop the waste and applying a fast-curing elastomeric material to the fill layer to provide a monolithic, continuous, elastomeric coating thereupon. The elastomeric material is derived from the reaction of an isocyanate-terminated compound having at least two reactive isocyanate groups and an amine-terminated compound having at least two reactive amine groups. The elastomeric layer is preferably covered with a porous drainage layer which is in turn covered with a layer of soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.