C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 10/00 (2006.01) C08F 4/646 (2006.01) C08F 210/16 (2006.01)
Patent
CA 2620568
A catalyst composition that includes a support material having an improved particle-size distribution is provided. Processes for producing polyolefin composition also are provided. Polymers and films also are provided. An example of a catalyst composition is a supported multi-transition-metal catalyst composition that includes: (a) at least two catalyst components selected from the group consisting of: a nonmetallocene catalyst component and a metallocene catalyst component; (b) a support material that has a D50 of less than about 30 microns and a particle size distribution having a D90/D10 ratio of less than about 6; and (c) an activator.
L'invention concerne une composition de catalyseurs qui renferme une matière de support possédant une distribution granulométrique améliorée, ainsi que des processus de production d'une composition de polyoléfines. Cette invention a aussi pour objet des polymères et des films. Un exemple d'une composition de catalyseurs constitue une composition de catalyseurs à plusieurs métaux de transition sur matière de support qui renferme (a) au moins deux composés catalytiques sélectionnés parmi le groupe comprenant un composé catalytique différent du métallocène et un composé catalytique du métallocène, (b) une matière de support qui présente D50 inférieur à environ 30 microns et une distribution granulométrique possédant un rapport D90/D10 inférieur à environ 6 et (c) un activateur.
Kuo Chi-I
Kwalk Tae Hoon
Li Dongming
Shannon Porter C.
Borden Ladner Gervais Llp
Univation Technologies Llc
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