Process for preparing macrocyclic polyester oligomers
US5407984A · kind A · utility
59Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/81
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing macrocyclic polyester oligomers from polyester linears is described and the process comprises the steps of combining polyester linears and organic solvents having tin catalysts present therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.