Polyester container with enhanced gas barrier and method
US8545952B2 · kind B2 · utility
1Cited by
37References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester container with enhanced gas barrier properties includes a polyester composition having an IV of 0.65 dL/g to 1.0 dL/g and including a polyester and a reactive organic gas barrier enhancing additive. The polyester is made using at least one first polycondensation catalyst, non-limiting examples of which include metals in Groups 3, 4, 13, and 14 of the Periodic Table and includes a catalyst residue remaining in the polyester from formation of the polyester. The catalyst residue includes at least a portion of the at least one first polycondensation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.