Biodegradable film compositions prepared from starch and copolymers of ethylene and acrylic acid
US4133784A · kind A · utility
97Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Sep 28, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Biodegradable film compositions which will withstand outdoor exposure for a desired time and then disintegrate are prepared from starch and ethylene acrylic acid copolymers. These film compositions are useful for agricultural mulch and heat-sealable packaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.