Sealing sheets for roofs
US5024886A · kind A · utility
8Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1988 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Sealing system for roofs by means of two successive sealing layers. The first sealing layer is mechanically attached to the support and the second, self-adhesive, sealing layer is attached to the first sealing layer by cold self-adhesion. The first sealing layer comprises sealing sheets made up by the assembling of one asphalt-base sheet reinforced by an armature and of a film of a polymer having a high tear resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.