Polyester polymerization catalyst, polyester produced by using the same, and process for producing polyester
US7144614B2 · kind B2 · utility
32Cited by
36References
120Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 2, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.