Biodegradable nano-polymer compositions and biodegradable articles made thereof
US7927532B2 · kind B2 · utility
6Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Oct 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/268
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to biodegradable nano-polymer compositions, or nanocomposites, comprising poly(lactic acid) and co-polyester polymer with adipic acid compounded with nanoparticles of a mineral material having a degree of purity of at least 99.9%, preferably 99.99%, selected from the group of silica and magnesium silicate. In addition, the present invention refers to a process for manufacturing the said compositions as well as biodegradable articles made on the basis of such compositions, such as molded, formed and extruded articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.