Three-dimensional reverse tanking membranes
US7968171B2 · kind B2 · utility
6Cited by
46References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2004 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Dec 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Shaped waterproofing membranes having three-dimensional contours are useful for the “reverse tanking” waterproofing of detail areas such as those presented by “tiebacks,” pipes, pile caps, and other irregularities that occur on concrete formworks and other civil construction or building surfaces. A preferred method for making such membranes is to thermoform a membrane laminate, having a carrier support sheet, waterproofing adhesive, and optionally a protective coating layer, as a single unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.