Scrim reinforced plastic film
US4340558A · kind A · utility
53Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1979 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Dec 7, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/172
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for forming a scrim-reinforced film wherein a molten, film-forming plastic, such as polyethylene, in a high state of fluidity is fed onto an unsupported scrim and solidified by cooling to produce a scrim at least substantially completely enclosed and surrounded by the plastic. The film, thus produced, can be formed into a high strength bag container by a folding and cutting operation utilizing hot knife means capable of fusing and thus sealing the plastic. In a preferred embodiment, the plastic is extruded onto the scrim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.