Roofing material with a non-asphalt backing
US11384541B2 · kind B2 · utility
1Cited by
32References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D1/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roofing material including a substrate having a top face and a bottom face. The roofing material further includes a non-asphalt coating applied to the substrate and an asphalt layer covering at least a portion of the top face. The bottom face is asphalt-free, or substantially asphalt-free.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.