Fish-mouth-resistant waterproofing membrane
US11933040B2 · kind B2 · utility
0Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Apr 11, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2475/006
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides methods and articles for achieving puncture-resistant waterproofing membranes and for waterproofing building and civil engineering surfaces without requiring the use of separate protection boards. Exemplary membranes and methods of the invention rely on relatively thin, flexible composite layers to provide impact resistance while yet facilitating seaming between adjacent installed membranes and minimizing formation of wrinkles, leakage channels, and “fish mouth” openings, particularly at substrate details or other surface irregularities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.