Biodegradable paper-based agricultural substrate
US6625923B2 · kind B2 · utility
2Cited by
43References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Feb 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A substrate comprising a paper layer and at least one biodegradable polymer layer extruded thereon is provided. The paper layer may have an extruded polymer layer on each side, it may have multiple polymer layers extruded on one side, or both. Additives appropriate for the particular use of the substrate may be added to one or more of the polymer layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.