Biodegradable polymer compositions
US5516825A · kind A · utility
11Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1995 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Feb 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Biodegradable polyesters derived from hydroxy alkenoic acids may be plasticised with an esterified hydroxycarboxylic acid which has at least three ester groups, at least some of the hydroxy groups being esterified with a carboxylic acid and at least some of the carboxy groups being esterified with an alcohol and/or phenol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.