Bitumen roofing composite
US12146322B2 · kind B2 · utility
0Cited by
44References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Dec 30, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D5/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A bitumen roofing composite is described having an upper surface and a lower surface. The bitumen roofing composite contains a first composite bitumen layer and a fire resistant (FR) fleece. The first composite bitumen layer has a first side and a second side and contains a first carrier saturated with bitumen. The FR fleece has a first side and a second side, where the first side of the FR fleece and the second side of the first bitumen composite layer are in intimate contact. The FR fleece contains a plurality of FR staple fibers and a plurality of first char scaffold fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.