Process for preparing a catalyst for the polymerization of olefi

Details Process for preparing a catalyst for the polymerization of olefi Process for preparing a catalyst for the polymerization of olefi

1992-03-04

1994-06-14

Smith, Edward J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502113, 502128, 502134, 526116, 526125, 5263486, 526352, C08F 4654, C08F 1000

Patent

active

053209940

ABSTRACT:
The process comprises, in a first step, the reduction of a titanium (IV) compound in an .alpha.,.omega.-dihalogenoalkane using a molar excess of at least one halogenated organoaluminium compound in the absence of an ether, and then in a second step, the addition of a reaction mixture of a compound capable of forming a magnesium halide in-situ, without additional reduction of the titanium compound obtained in the first step. The catalyst contains at least one titanium compound, at least one halogenated organoaluminium compound and at least one inorganic magnesium compound in suspension in at least one .alpha.,.omega.-dihalogenoalkane; the titanium cmpound is essentially a titanium (III) compound, the total titanium (II) and titanium (IV) content being less than or equal 15% to the total titanium content. It may also contain at least one vanadium compound, an inert solvent, at least one partially polymerized .alpha.-olefin and at least one organometallic activator from groups I to II of the Periodic Classification. Also described is a process for polymerization of olefins in the presence of said catalyst.

REFERENCES:
patent: 2954367 (1960-09-01), Vandenbey
patent: 3995098 (1976-11-01), Avaro et al.
patent: 4163831 (1979-08-01), Gessell
patent: 4172050 (1979-10-01), Gessell
patent: 4739022 (1988-04-01), Blenkers et al.
patent: 5013701 (1991-05-01), Coosmans et al.

Affiliated with

Also associated with

Rating

Process for preparing a catalyst for the polymerization of olefi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing a catalyst for the polymerization of olefi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing a catalyst for the polymerization of olefi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1249125