Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2004-08-03
2010-02-02
Lu, Caixia (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S152000, C502S162000, C526S160000, C526S161000, C556S013000, C556S021000, C556S053000
Reexamination Certificate
active
07655592
ABSTRACT:
The invention relates to a process for the preparation of a metal-organic compound, comprising at least one phosphinimine ligand, characterized in that the HA adduct of a phosphinimine ligand according to formula (1) is contacted with a metal-organic reagent of formula (2) in the presence of at least 2 equivalents of a base, wherein HA represents an acid, of which H represents its proton and A its conjugate base, with Y═N—H as formula (1), and Mv(L1)k(L2)1(L3)m(L4)nX as formula (2), and wherein Y is a substituted phosphorous atom, and 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, k, l, m, n=0, 1, 2, 3, 4 with k+l+m+n+l=V, and X represents a group 17 halogen atom. 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.
REFERENCES:
patent: 6114481 (2000-09-01), McMeeking et al.
patent: 6355744 (2002-03-01), von Haken Spence et al.
patent: 2004/0010142 (2004-01-01), Nielsen et al.
patent: 2210131 (1999-01-01), None
patent: 2243726 (2000-01-01), None
patent: 2243775 (2000-01-01), None
patent: 2243783 (2000-01-01), None
patent: 2261518 (2000-08-01), None
patent: WO 02/070569 (2002-09-01), None
Mark J. Sarsfield et al; “The reactivity of trimethylsilyliminophosphines towards titanium and zirconium halides”; Journal of the Chemical Society, Dalton Transactions, No. 6; Mar. 21, 2001; pp. 822-827.
Clayden et al. Organic Chemistry, Oxford University Press pp. 198-202 (2001).
Hawkeswood et al. “Syntheses and reacitons of the bis-boryloxide O2Bpin)2(pin=O2C2Me4)”, Dalton Trans. 2005:2182-2187 (2005).
Katti et al. “Rearrangement of a phosphorus-carbon bridge to a phosphorus-nitrogen-phosphorus bridge via organogermanium or organotin-assisted cleavage of a phosphorus-carbon bond. Crystal and molecular structure of the imine salt (CH3)Ph2PNPPh2(NH2)+Cl” Inorg. Chem. 30:2631-2633 (1991).
Arts Henricus
Beijer Felix
Ijpeij Edwin
Van Der Burgt Francis
van Doremaele Gerardus
DSM IP Assets B.V.
Lu Caixia
Nixon & Vanderhye P.C.
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