Polyactic acid-based blends
US5883199A · kind A · utility
146Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Apr 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Biodegradable blends including a first, polylactic acid-based polymer or copolymer, and a second polymer or copolymer including one or more polyesters, e.g., an aliphatic polyester or a polyester of one aliphatic C.sub.2 to C.sub.20 diacid or of a combination of two more different aliphatic C.sub.2 to C.sub.20 diacids, wherein the first and second polymers are present in a ratio of 9:1 to 1:9, are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.