Methods of forming an asphalt shingle waste powder filled coating
US10697133B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2020 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Feb 12, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2555/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In some embodiments, asphalt shingle waste (ASW) is obtained. In some embodiments, sufficient grinding steps and screening steps can be performed on the ASW to result in ASW powder. In some embodiments, the grinding steps and screening steps can exclude wet extraction steps. In some embodiments, ASW powder and an asphalt coating can be fed into at least one first mixer to form a mixture of the ASW powder and the asphalt coating. In some embodiments, the mixture of the ASW powder and the asphalt coating can be heated to form a heated mixture. In some embodiments, the heated mixture of the ASW powder and the asphalt coating can be conveyed to at least one second mixer. In some embodiments, at least one filler material can be combined with the heated mixture in the second mixer to obtain an ASW powder filled coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.