Mechanically sealing closure for receptables
US5962094A · kind A · utility
3Cited by
14References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2878
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a closure giving a tight mechanical seal and preferably made from metal or plastic, with an insert on its inner side as a sealing element for containers, in particular for bottles and glassware, where the insert is composed of at least one polyolefin which can be prepared using catalysts selected from the class consisting of the metallocenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.