Reduction of melt fracture in linear polyethylene
US5210142A · kind A · utility
23Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Feb 13, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer blends of at least one ethylene interpolymer product and at least one linear polyethylene are disclosed. The blends have a shear rate at the point of onset of melt fracture at least about 2 percent higher than that obtained for the linear polyethylene alone. The polymer blends are particularly useful for forming films and tapes wherein the melt fracture of the polymer blend is substantially reduced or eliminated, thereby improving extrudability and fabricated article appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.