Single-ply roofing membrane with laminated, skinned nonwoven
US6502360B2 · kind B2 · utility
89Cited by
9References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 27, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jun 28, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/149
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention is directed to a membrane laminate for a roofing system comprising a membrane sheet and a nonwoven material laminated to said sheet. The nonwoven material has a semi-permeable, skinned layer formed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.