Method for producing a polyolefin
US5594079A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1996 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Feb 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for producing a stereoregular polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, which comprises polymerizing at least one olefin in the presence of a catalyst system comprising: PA1 (A) a solid catalyst component comprising Mg, Ti, halogen and an electron donative compound, PA1 (B) at least one member selected from the group consisting of organometallic compounds of metals of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table, PA1 (C) an electron donative compound, and PA1 (D) a boron compound of the formula R.sup.1.sub.n BX.sub.3-n wherein R.sup.1 is a hydrocarbon group and/or a halogenated hydrocarbon group, X is a halogen atom, and 0.ltoreq.n.ltoreq.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.