Film comprising a contact layer for the wall of a single-use pouch
US12103756B2 · kind B2 · utility
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15References
20Claims
0Family size
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Key dates
| Filing date | Jan 17, 2014 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | May 12, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A film for manufacturing a pouch includes a contact layer including (A) a copolymer of ethylene and α-olefin having a density in the range of 0.870 g/cm3 to 0.910 g/cm3, alone or in mixture with (B) a polyolefin having a density in the range of 0.910 g/cm3 to 0.940 g/cm3, the contact layer including less than 0.10 wt %, preferably less than 0.07 wt %, of additives able to release a degradation compound further to gamma irradiation in the range of 25 kGy-50 kGy that can slow down or delay cellular growth. The process for manufacturing such a film, as well as the single-use pouch manufactured from that film are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.