Heterocyclic metallocenes and polymerization catalysts

Details Heterocyclic metallocenes and polymerization catalysts Heterocyclic metallocenes and polymerization catalysts

2007-07-03

2007-07-03

Harlan, Robert D. (Department: 1713)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S012000, C556S021000, C556S028000, C556S030000, C556S043000, C556S053000, C556S056000, C556S070000, C556S087000, C556S408000, C534S011000, C534S015000, C549S003000, C549S032000, C502S103000, C502S117000, C526S128000, C526S149000, C526S150000, C526S348100, C526S348500, C526S351000, C526S352000

Reexamination Certificate

active

10395686

ABSTRACT:
A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using said catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): YjR″iZjjMeQkPlwherein Y is a coordinating group containing a six π electron central radical directly coordinating Me, to which are associated one or more radicals containing at least one non-carbon atom selected from B, N, O, Al, Si, P, S, Ga, Ge, As, Se, In, Sn, Sb and Te; R″ is a divalent bridge between the Y and Z groups; Z is a coordinating group, optionally being equal to Y; Me is a transition metal; Q is halogen or hydrocarbon substituents; P is a counterion; i is 0 or 1; j is 1–3; jj is 0–2; k is 1–3; and l is 0–2.

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