Compositions of ethylene polymers for the manufacture of films
US4623567A · kind A · utility
18Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1983 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Jun 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprising from 25 to 95 weight percent of at least one free-radical ethylene polymer and from 5 to 75 weight percent of at least one ethylene .alpha.-olefin copolymer, wherein the .alpha.-olefin contains at least 4 carbon atoms, wherein the copolymer has a specific gravity between 0.905 and 0.940 and a melt index between 0.4 and 3 dg/min, and wherein the free-radical ethylene polymer has a melt index between 0.15 and 3 dg/min. Application to the manufacture of films having a thickness between 8 and 200 microns and other applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.