Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2011-08-16
2011-08-16
Lu, Caixia (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S103000, C502S104000, C502S114000, C502S152000, C526S124700, C526S160000
Reexamination Certificate
active
07998894
ABSTRACT:
The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from(a) a compound of Group 1 to 3 of the Periodic Table (IUPAC),(b) a transition metal compound of Group 4 to 10 of the Periodic Table (IUPAC), or a compound of an actinide or lanthanide,(c) one or more organic ligand compound(s) which is/are selected from organic compounds comprising a cyclopentadienyl anion backbone, and(d) a compound of Group 13 of the Periodic Table,wherein the catalyst component of said Ziegler-Natta catalyst is formed in an emulsion/solidification method, to a process for the production of such a catalyst, and to a process for the production of an olefin (co-)polymer in the presence of such a catalyst.
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Fredriksen Siw
Ko Young-Soo
Savilahti Marita
Stalhammar Minna
Väänänen Marjo
Borealis Technology Oy
Lu Caixia
Milbank Tweed Hadley & McCloy LLP
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