Expanded articles of biodegradable plastic materials
US5360830A · kind A · utility
56Cited by
32References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1994 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Feb 18, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/916
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Expanded articles of biodegradable plastic material having a closed pore structure and a density of from 0.01 to less than 0.1 g/cm.sup.3 are produced by extrusion of a composition including starch and a synthetic polymer selected from ethylene-vinyl alcohol, ethylene-acrylic acid, and mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.