Film layers made from ethylene polymer blends
US7659343B2 · kind B2 · utility
28Cited by
37References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Film layers made from formulated ethylene polymer compositions are disclosed. Film layers made from such formulated compositions have surprisingly good heat seal properties, and an especially good reduction in heat seal initiation temperature. The ethylene polymer compositions have at least one homogeneously branched ethylene/alpha-olefin interpolymer and at least one homogeneously or heterogeneously branched ethylene polymer which has a lower melt index than the first mentioned component. The first homogeneously branched ethylene/alpha-olefin interpolymer has a melt index higher than that of the formulated composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.