Use of a wax-modified, air rectified asphalt in built up roofing asphalt compositions
US10189994B2 · kind B2 · utility
1Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Jan 2, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D7/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition and method for making a heat stable, low application temperature Built Up Roofing Asphalt (BURA) is provided. The composition comprises a wax-modified, air rectified asphalt conforming to Type 3 BURA and, in some embodiments, Type 4 BURA specifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.