Dimensionally stable thermoplastic tubular articles
US4697718A · kind A · utility
16Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Feb 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A food container comprising an open-ended cylindrical body which is made of a crystallizable polyethylene terephthalate material, and end closures at each end of the body forming with the body a closed container, the body material being biaxially oriented and the container body having been head-set, while restrained against radial or axial shrinkage, at a temperature between about 180.degree. C. and about 240.degree. C., whereby the container is able to withstand hot-filling, pasteurization or sterilization temperatures of up to about 120.degree. C. without undergoing shrinkage of its linear dimensions by more than 3%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.