Waterproof composite sheet material
US4656080A · kind A · utility
18Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Sep 4, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3894
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A waterproof composite sheet material useful for sails of wind surfing equipment and boats, comprising a water-repellent fibrous sheet substrate impregnated with a water-repellent material and waterproof thermoplastic resin film layers firmly bonded to the surfaces of the substrate through waterproof bonding material layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.