Film with compostable heat seal layer
US9162421B2 · kind B2 · utility
1Cited by
147References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 25, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer bio-based composite film with a bio-based heat seal layer. The compostable bio-based film can comprise a crystalline bio-based heat seal layer and an amorphous bio-based barrier web layer. The heat seal layer has a second heat melting temperature which is lower than its first heat melting temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.