Biodegradable sheets having foamed layer
US9365741B2 · kind B2 · utility
0Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Nov 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24851
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to sheets. The sheets include a base layer, a foamed layer formed on the base layer, a printed layer formed on the foamed layer, and a partially foamed layer formed on the printed layer. At least one layer of the foamed layer and the partially foamed layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.