Process for homo- or copolymerization of conjugated olefins

Details Process for homo- or copolymerization of conjugated olefins Process for homo- or copolymerization of conjugated olefins

2011-03-29

2011-03-29

Lu, Caixia (Department: 1765)

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

Catalyst or precursor therefor

Organic compound containing

C502S103000, C502S120000, C526S129000, C526S135000, C526S161000, C526S164000, C526S165000, C526S335000, C526S340000

Reexamination Certificate

active

07915194

ABSTRACT:
Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae:wherein MIand MIIare metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2and R3may be linked to each other; Y is a divalent bridging group; X, X1, and X2are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, e, t, and y are numbers as further described in the claims.

REFERENCES:
Lorenz et al., “Between Enamide and Azaallyl Structures: Novel Flexible N-Chelate Ligands in the Lanthanide Chemistry”, Organometallics, 2005.

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