Compounds bis(tributyltin)chromate and bis(triphenyltin)chromate

Details Compounds bis(tributyltin)chromate and bis(triphenyltin)chromate Compounds bis(tributyltin)chromate and bis(triphenyltin)chromate

1974-11-27

1977-04-26

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252431R, C07F 722

Patent

active

040200922

ABSTRACT:
A catalyst system for the polymerization of at least one 1-olefin comprising a mixture of a bis-trihydrocarbyltinchromate essentially of the formula: ##STR1## and cocatalytic amounts of an alkyl aluminum compound of the formula R.sub.a AlX.sub.b in each of which formula each R is a hydrocarbyl radical containing from 1 to about 14 carbon atoms and all R's are the same or different, X is a halogen or an alkoxy group, a is an integer of 1-3, b is an integer of 0-2 and the sum of a and b is 3. The disclosure also includes the method of polymerizing at least one such olefin which comprises contacting the olefin under polymerizing conditions with the above catalyst system.

REFERENCES:
patent: 3324101 (1967-06-01), Baker et al.
patent: 3468865 (1969-09-01), Santiago
patent: 3642749 (1972-02-01), Johnson et al.
patent: 3847957 (1974-11-01), Boone
patent: 3884832 (1975-05-01), Pullukat et al.
Sawyer, Organotin Compounds, Marcel Dekker, Inc. N.Y. vol. 2 pp. 278-279 (1971); vol. 1 pp. 130-131 (1971).
Chemical Abstracts, 82, 147951n (1975).

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