Aliphatic polyester-amide compositions and a process for producing the same
US8080617B2 · kind B2 · utility
3Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Aug 21, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/46
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention is a method for increasing the molecular weight of and optionally providing branching in a polymer which has a first repeat unit, which comprises the residual of a condensation reaction of an aliphatic dicarboxylic acid and either a bisamide diol or a bis diamide diester, and a second repeat unit, which comprises the residual of a condensation reaction of a diol and an aliphatic dicarboxylic acid. The invention is also the branched polymer that can be made by such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.