Applying a release material to a shingle during manufacturing
US11078669B2 · kind B2 · utility
0Cited by
23References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Apr 7, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a release material that can be applied as a liquid, gel, emulsion, foam, etc. in a shingle manufacturing line. The release material can also be used in the manufacturing of roll roofing. The release material primarily constitutes an emulsion of polymers that can be cured with heat, IR light or other methods. Silicone may also be included in the emulsion which assists in releasability. The release material can be sprayed or extruded on to the surface of the shingle in an automated fashion, eliminating the necessity for operator interaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.