Process for making film from low density ethylene hydrocarbon copolymer
US4243619A · kind A · utility
122Cited by
15References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1979 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Feb 16, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/904
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for making film from a narrow molecular weight distribution low density ethylene hydrocarbon copolymer, which process comprises extruding said copolymer through a die gap of greater than about 50 mils. The film exhibits an excellent balance of optical and mechanical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.