Polymerization process
US6657023B2 · kind B2 · utility
42Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Jul 4, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymerization processes for ethylene and at least one mono-1-olefin comonomer having from about three to eight carbon atoms per molecule in the presence of a twice-aged catalyst system comprising chromium supported on a silica-titania support and a trialkylboron compound is provided. Novel ethylene copolymers also are produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.