Ethylene polymer blends and process for forming film
US4547551A · kind A · utility
107Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1984 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Jun 25, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ethylene polymer blends of a high molecular weight ethylene polymer, preferably an ethylene-mono-1-olefin copolymer, and a low molecular weight ethylene polymer preferably an ethylene homopolymer, both preferably with narrow molecular weight distribution and low levels of long chain branching exhibit excellent film properties and good environmental stress crack behavior superior to that expected for polyethylene of comparable density and melt flow. These resins are useful for the manufacture of film or in blow molding techniques, the production of pipes and wire coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.