Branched aliphatic polyesters
US6441126B1 · kind B1 · utility
16Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0002
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A gum base comprising at least one crosslinked branched aliphatic biodegradable polyester comprising repeat units formed from at least one polyol having three to four hydroxy groups, or ester thereof, at least one dibasic acid, or ester thereof, and at least one long chain monocarboxylic acid, or ester thereof. The process of producing a crosslinked branched aliphatic biodegradable polyester gum base by reactive extrusion is also included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.