Biodegradable resin foam sheet, biodegradable resin foam article and biodegradable resin molded container
US7972669B2 · kind B2 · utility
7Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2006 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a foam sheet made of a biodegradable resin composition. The biodegradable resin composition contains a wax and/or a polyolefin resin. The biodegradable resin is mainly composed of polylactic acid. Natural candelilla wax or paraffin wax is preferable as the wax. Polyethylene is preferable as the polyolefin resin. Also disclosed are a foam article and a molded container made of such a foam sheet wherein the degree of crystallinity of the biodegradable resin is 10% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.