Container closure having easily openable liner comprised of base resin, lubricant and 1 to 15% by weight of a conjugated diene resin
US4256234A · kind A · utility
20Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1978 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Nov 30, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D53/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Container closure having an easily openable liner, said liner being composed of a composition comprising a base resin consisting of 95 to 30% by weight of a crystalline polyolefin and 5 to 70% by weight of a lowly crystalline or amorphous copolymer of ethylene with otherolefin, a lubricant in an amount of 0.001 to 5% by weight based on said base resin and a polymer containing at least 10% by weight of a conjugated diene in an amount of 1 to 15% by weight based on said base resin. This closure has a good sealing property and an easy openability in combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.