Polyesters and polyester containers having a reduced coefficient of friction and improved clarity
US6903154B2 · kind B2 · utility
5Cited by
117References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2004 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Feb 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1372
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyesters and polyester containers having a reduced coefficient of friction and improved clarity are produced using an antiblock agent comprising a dried talc having from about 20 to about 300 ppm water or a fatty acid tethered talc. The use of these talcs results in polyesters and polyester containers having a coefficient of less than about 1.0 and a clarity with haze values of less than about 4%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.