Catalysts for polymerizing cyclic olefin

Details Catalysts for polymerizing cyclic olefin Catalysts for polymerizing cyclic olefin

2011-01-04

2011-01-04

Choi, Ling-Siu (Department: 1796)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Nitrogen compound containing

Reexamination Certificate

active

07863214

ABSTRACT:
Provided is a metal catalyst complex for preparing a cyclic olefin-based polymer by addition polymerization of a cyclic olefin-based monomer, which is represented by Formula 1 below:in-line-formulae description="In-line Formulae" end="lead"?[M(L1)x(L′2)y(L3)z]a[Ani]b  <Formula 1>in-line-formulae description="In-line Formulae" end="tail"?wherein M is a Group X metal; [M(L1)x(L′2)y(L3)z] is a cationic precatalyst; L1is an anionic hydrocarbyl-containing ligand; L′2is a neutral ligand; L3is an N-heterocyclic carbene ligand; [Ani] is an anion capable of weakly coordinating with the metal M; x is 1 or 2; y is 0 to 4; z is 1 or 2; 2≦x+y+z≦6; a and b are each 1 to 10.The metal catalyst complex has an N-heterocyclic carbene ligand, and thus, is excellent in thermal stability and reactivity.

REFERENCES:
patent: 5468819 (1995-11-01), Goodall et al.
patent: 5728839 (1998-03-01), Herrmann et al.
patent: 6455650 (2002-09-01), Lipian et al.
patent: 2005/0215735 (2005-09-01), Goodall et al.
patent: WO 02/079126 (2002-10-01), None
Mcguinness et al., “Zerovalent Palladium and Nickel Complexes of Heterocyclic Carbenes: Oxidative Addition of Organic Halides, Carbon-Carbon Coupling Processes, and the Heck Reaction”, Organometallics 1999, 18, pp. 1596-1605.

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