Homopolymers and copolymers of ethylene
US6518385B1 · kind B1 · utility
24Cited by
1References
39Claims
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Key dates
| Filing date | Jul 6, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ethylene homopolymers and copolymers having a broad molecular distribution, excellent toughness and improved processability. These polymers may be prepared by use of a single metallocene catalyst system in a single reactor in the gas phase. These polymers of density typically 0.85-0.95 are defined in particular by their melt strength (MS) and long chain branching (LCB) characteristics and are particularly suitable for use in low density film applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.