Waterproof membrane with fuse bonded non-woven reinforcement
US4518658A · kind A · utility
5Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1984 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | May 21, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/688
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A waterproof membrane consisting of a non-woven bitumen-coated reinforcement of heat-bonded continuous filaments containing: PA1 from 70 to 90% of polyethylene glycol terephthalate and PA1 from 30 to 10% of polybutylene glycol terephthalate. The filaments are two-component and either concentric or side-by-side. The membrane consists of filaments made of each of the two types of polymers. The process for its manufacture by heat bonding. Application in the building industry (roofs, terraces, floors and any waterproofing application).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.