Films based on three component polyolefin blend
US6232402A · kind A · utility
17Cited by
2References
13Claims
0Family size
Inventor
Key dates
| Filing date | Oct 28, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyolefin films having high oxygen transmission values are composed of blends of 75 to 92% isotactic polypropylene, 5 to 15% by weight low density polyethylene and 3 to 10% by weight of an olefin heteropolymer containing propylene and at least one other olefin 2 to 4 carbon atoms having a melting point less than that of polypropylene and a density ofr at least about 0.95 g/cc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.