Impact resistant roofing shingle and method for making same
US11946253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2020 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2419/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An impact resistant roofing shingle comprising an upper shingle layer; a lower shingle layer laminated to said upper shingle layer underneath said tab portion of said upper shingle layer; wherein each of the upper shingle layer and the lower shingle layer comprise a mat, an upper asphalt coating layer applied to an exposed side of the mat, a lower asphalt coating layer applied to an unexposed side of the mat, a granular coating applied to the upper asphalt coating layer opposite the mat, and a fabric reinforcing layer applied to the lower asphalt coating layer opposite the mat. In one embodiment, the roofing shingle may also include the fabric reinforcing layer covering the entire area of each mat. The roofing shingle may have a recessed area of the exposed side of the overlay layer that aligns with the overlap of the overlay and underlay layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.