Process for producing high ductile polyesters
US5648454A · kind A · utility
36Cited by
4References
15Claims
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Key dates
| Filing date | Feb 14, 1996 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Feb 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/85
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for making high ductile and high melting point polyesters comprising the step of contacting macrocyclic copolyester oligomers having structural units with C.sub.4 alkylene bridging radicals and structural units with bridging radicals other than C.sub.4 alkylenes, and a polymerization catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.