Catalyst composition consisting essentially of iron compounds, o

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants

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252428, 252431C, 252431N, 526140, 526141, C08F 404, C08F 470

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041682440

ABSTRACT:
Method of polymerizing conjugated diolefinic monomers containing from 4 to about 12 carbon atoms to high molecular weight polymers by bringing said monomers into contact with a catalyst system consisting of (1) an iron-containing compound, (2) an organometallic reducing agent from Groups I and III of the Periodic Table, and (3) a nitrogen-containing ligand.

REFERENCES:
patent: 3400113 (1968-09-01), Winter et al.
patent: 3457186 (1969-07-01), Marsico
patent: 3477999 (1969-11-01), Takeda et al.
patent: 3669949 (1972-06-01), Yoo

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