Bimodal polyethylene copolymer and film thereof
US11767385B2 · kind B2 · utility
1Cited by
36References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Jul 23, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A bimodal ethylene-co-1-butene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A (blown) film consisting essentially of the bimodal ethylene-co-1-butene copolymer and having improved properties. Methods of synthesizing the bimodal ethylene-co-1-butene copolymer and making the blown film. A manufactured article comprising the bimodal ethylene-co-1-butene copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.