Manufacturing method of polyolefin
US5118769A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1988 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Jul 5, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A manufacturing method of polyolefin is disclosed wherein the catalyst used for the polymerization of .alpha.-olefins at a temperature lower than the melting point of polymer in the presence of said Ziegler type catalyst and hydrogen comprises of PA0 (A) solid catalyst ingredient (A) obtained by allowing the reaction product of PA1 (i) at least one member selected from metallic magnesium and hydroxylated organic compounds and oxygen-containing organic compounds of magnesium, PA1 (ii) at least one kind of oxygen-containing organic compounds of titanium, PA1 (iii) at least one kind of organoaluminum compounds, and/or PA1 (iv) at least one kind of silicon compounds to react with PA1 (v) at least one kind of halogenated aluminum compounds, PA0 (B) at least one kind of catalyst ingredients (B) selected from organometallic compounds, the metal of which belongs to Ia, IIa, IIb, IIIb or IVb group in the periodic table, and PA0 (C) at least one kind of catalyst ingredients (C) selected from halogen-containing compounds comprising halogenated hydrocarbons, halogens, interhalogenous compounds and halides of aluminum, tin, lead, phosphorus, antimony and sulfur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.