Biodegradable starch plastics incorporating modified polyethylene
US5115000A · kind A · utility
21Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1990 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Jun 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition is disclosed for a biodegradable, blendable plastic having improved tensile strength. It consists of starch, oxidized polyethylene, and polyethylene. The starch is included in an amount up to 50% by weight, the oxidized polyethylene up to 15% by weight, and the remaining amount is polyethylene. It is preferred that high molecular weight oxidized polyethylene be used and in the method of producing the composition, it is preferred that the blending of the components occur at a temperature range of 110.degree. C. to 200.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.