Polymer modified asphalt roofing material
US11028591B2 · kind B2 · utility
3Cited by
63References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/3491
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shingle coating asphalt composition is provided that is produced from a paving grade asphalt. The asphalt composition comprises a paving-grade asphalt that has been modified with one or more polymer additives; and a secondary additive comprising one or more of a viscosity reducing agent, a wax, a salt of a fatty acid ester, and an amide of a fatty acid. The shingle coating asphalt coating composition is used to make a shingle. The shingle includes a substrate, the asphalt, and roofing granules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.