Ternary mixture of biodegradable polyesters and products obtained therefrom
US6841597B2 · kind B2 · utility
39Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Mar 6, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-ε-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of polylactic acid, in which the concentration of (A) varies with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of (C) with respects to (A+B+C) lies between 2 and 30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.