Reactive extrusion process for making modifiied biodegradable compositions
US6579934B1 · kind B1 · utility
27Cited by
41References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a hydrolytically modified, biodegradable polymer and a method of making a hydrolytically modifiable a biodegradable polymer. In a preferred embodiment, the invention is a method of grafting polar groups onto biodegradable polymers and modified biodegradable polymer compositions produced by the method. The polymer compositions are useful as components in flushable and degradable articles. Water-sensitive polymer blends and method of making those polymer blends are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.