Roofing shingles, tiles and shakes
US10837176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | May 5, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure relates generally to roofing elements and methods for making them. In one embodiment, the disclosure provides a roofing element in the form of a roofing shingle that includes a body of a foamed cured cross-linked polymer, the body having a top surface and a bottom surface, the body extending substantially in a plane and having a thickness in the range of 0.5 mm to 35 mm; and a layer of weather-resistant roofing granules disposed on and adhered at the top surface of roofing element. The roofing element can be made by providing a body of wet foamed curable composition, and allowing the curable composition to cure to provide the body of foamed cured cross-linked polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.