Container with high-crystallinity sidewall and low-crystallinity base
US7445826B2 · kind B2 · utility
10Cited by
21References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2005 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Aug 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withstand higher caustic wash temperatures and exhibits reduced flavor carryover, or as a hot-fill container. The container, which can be monolayer or multilayer, is also useful as a carbonated beverage, O2 or CO2 barrier, or beer container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.