Biodegradable graft copolymers
US4891404A · kind A · utility
35Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | May 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F251/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A nucleophilic displacement reaction is used to prepare biodegradable thermoplastic copolymers exhibiting a high capacity for stabilizing biodegradable blends of polysaccharides and synthetic thermoplastic polymers. The graft copolymers are characterized by consistent product uniformity and a high degree of substitution on the polysaccharide chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.