Method to increase the crystallization rate of polyesters
US6319576A · kind A · utility
18Cited by
10References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for increasing the crystallization rate of a crystallization polyester comprises incorporating into the polyester an effective amount of a hyperfunctional nucleation agent. The hyperfunctional nucleating agent comprises a plurality of functional groups and form stable nuclei around which the polyester crystallizes. The hyperfunctional nucleating agent facilitates faster crystallization and formation of many small crystallites. Methods of making articles such as containers with polyesters are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.