Pouch containers and films therefor
US5135785A · kind A · utility
40Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Aug 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A pouch container can be produced for household products such as bleaches using a multi-layer film and RF sealing techniques. The film has at least one barrier layer and at least one seal layer. The film also has an oxygen permeability of at least about 600 cm.sup.3 /m.sup.2 /day/bar and a transmissivity for fragrances. In addition, the film should be of an age after manufacture of about 2 weeks to about 24 weeks. The pouches that are formed have strong seals and overall strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.