Reinforced film and method of manufacturing same
US5399419A · kind A · utility
13Cited by
21References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1992 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jul 22, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/197
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reinforced, impervious, unitary film and a method for making the same are disclosed. In a preferred embodiment, a film is produced from a layer of weft inserted warp knit scrim and at least one layer of lightweight, porous mat, together being impregnated with a suitable thermoformable plastic in liquid form such as PVC plastisol, then being set and calendered under pressure to deform the plastic and create a continuous, non-porous, unitary film. The resulting product is highly resistant to water absorption and hydrostatic pressure and essentially non-wicking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.