Stabilization of poly(hydroxy acid)s derived from lactic or glycolic acid
US5382617A · kind A · utility
2Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Aug 20, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/55
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stabilization of poly(hydroxy acid)s, particularly poly(lactic acid), to thermal processing with selected boron compounds is disclosed. The most preferred stabilizer is boric oxide (B.sub.2 O.sub.3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.