Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2004-08-03
2010-06-15
Harlan, Robert D. (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C526S171000, C526S172000, C502S167000, C502S155000, C548S103000
Reexamination Certificate
active
07737070
ABSTRACT:
A process for the preparation of a metal-organic compound, comprising at least one imine ligand, characterized in that an imine ligand according to formula (1) or the HA adduct thereof, wherein HA represents an acid, of which H represents its proton and A its conjugate base, is contacted with a metal-organic reagent of formula (2) in the presence of at least 1, respectively at least 2 equivalents of a base, with Y═N—R as formula (1), wherein Y is selected from a substituted carbon, or nitrogen atom and R represents a substituent, and with Mv(L1)k(L2)l(L3)m(L4)nxas formula (2), wherein: M represents a group 4 or group 5 metal ion, V represents the valency of the metal ion, being 3, 4 or 5, L1, L2, L3, and L4represent a ligand or a group 17 halogen atom on M and may be equal or different, X represents a group 17 halogen atom, k, l, m, n=0, 1, 2, 3, 4 with k+l+m+n+l=V. The invention further relates to a process for the preparation of a polyolefin by making a metal-organic compound according to the process of the invention, wherein the base is an olefin polymerisation compatible base, which metal-organic compound is activated anywhere in, or before a polymerisation reactor.
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Arts Henricus
Beijer Felix
Ijpeij Edwin
Van Der Burgt Francis
van Doremaele Gerardus
DSM IP Assets B.V.
Harlan Robert D.
Nixon & Vanderhye P.C.
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