C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/610, 402/636
C08F 2/06 (2006.01) C08F 4/62 (2006.01) C08F 10/00 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01) C08F 110/02 (2006.01)
Patent
CA 1118945
ABSTRACT OF THE DISCLOSURE In a slurry polymerization for producing an ethylene homopolymer or ethylene-.alpha.-olefin copolymer in multiple stages, in which the gas phase hydrogen concentration is different from each other, using a catalyst system comprising a transition metal compound components and an organoaluminum compound component, the improvement which comprises conducting the polymeri- zation by the use of a solid catalyst component comprising a titanium compound and/or vanadium compound supported on a specified magnesium compound, as the transition metal compound component, in a molar ratio of gas phase hydrogen to ethylene of 0.5 to 15 in the first stage whereby obtaining 30 to 95% by weight, or the total polymer, and in the second stage in a molar ratio of gas phase hydrogen to ethylene, not exceeding 0.2. By this process, it is possible to produce polyethylene having high melt flow and good homogeneity to give molded articles having fewer fish-eyes and less unevenness.
353440
Hanji Katsumi
Mashita Kentaro
Marks & Clerk
Sumitomo Chemical Co. Ltd.
LandOfFree
Process for the polymerization ethylene 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 the polymerization ethylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the polymerization ethylene will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-982239