Plastic closures and closure liners
US5486558A · kind A · utility
14Cited by
10References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1994 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Oct 24, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0685
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Improved polymer compositions, useful in the manufacture of closures and as liners for reclosable container closures, comprising blends of semicrystalline poly(1-butene), ethylene-methylene acrylate, polypropylene random copolymer, wherein the polypropylene random copolymer and the ethylene methyl acrylate can be used singularly or in combination, a lubricating agent and optionally, low density polyethylene. The inventive polymer compositions are recyclable, and do not present the environmental, health, and odor problems associated with polymer liners known in the art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.