Roofing material with fibrous mat
US6296912A · kind A · utility
91Cited by
9References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1998 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2481
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roofing membrane material is disclosed. The material is characterized in that it includes a woven or non-woven fibrous mat having an adhesive asphalt coating, such as a two-layer asphaltic coating applied to one surface thereof. The asphaltic coating can be a first relatively non-adhesive asphaltic material that infiltrates a portion of the fibrous mat and a second, relatively adhesive asphaltic material deposited upon an exposed surface of its non-adhesive counterpart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.