Easily tearable film and pouch made therefrom
US5470419A · kind A · utility
43Cited by
13References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An easily tearable plastic film and a pouch made therefrom comprises a thin-wall part for easy tearing. The thin-wall part being made by incorporating strings in the plastic film when it is made by melt extrusion. A method for producing the film and pouch is also shown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.