Roofing material
US6341462B2 · kind B2 · utility
98Cited by
100References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Jan 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/644
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Roofing material is improved by adhering to at least part of its lower surface a backing material consisting essentially of a fiber component and a binder component. Acceptable fibers include polyester, glass and woodpulp. In a preferred embodiment, the fiber component is a mixture of polyester and glass fibers and the binder is a latex binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.