Process for preparing a catalyst for polymerization or copolymerization of ethylene
US4643986A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1986 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Apr 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a catalyst for polymerization or copolymerization of ethylene, which comprises reacting a silicone compound (I) of the formula R.sup.4.sub.a H.sub.b SiO.sub.(4-a-b)/2 or R.sup.5.sub.n Si(OH).sub.4-n or a condensate thereof and an organomagnesium compound (II) of the formula (MgR.sup.6.sub.2).sub.p.(R.sup.6 MgX).sub.q to obtain a product (A), reacting the product (A) with a titanium compound (III) of the formula Ti(OR.sup.2).sub.m X.sub.4-m and a silicone halide compound (IV) of the formula R.sup.1.sub.L SiX.sub.4-L to obtain a product (B), reacting the product (B) with an organoaluminum halide compound (V) of the formula R.sup.3.sub.c AlX.sub.3-c to obtain a solid component (C), and bringing the solid component (C) in contact with an organoaluminum compound (VI) of the formula R.sub.d AlY.sub.3-d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.