Catalytic process for preparing polymers of sulfur dioxide and o

Details Catalytic process for preparing polymers of sulfur dioxide and o Catalytic process for preparing polymers of sulfur dioxide and o

1988-03-03

1989-02-28

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From sulfur-containing reactant

528382, 528383, 528386, 528392, C08G 7518

Patent

active

048086975

ABSTRACT:
The invention is a process for preparing linear alternating polymers of sulfur dioxide, ethylene, optionally at least one ethylenically unsaturated hydrocarbon other than ethylene and optionally carbon monoxide having the general formula ##STR1## wherein Z is at least one moiety selected from SO.sub.2 and CO, G is the moiety of at least one ethylenically unsaturated hydrocarbon of at least 2 carbon atoms polymerized through the ethylenic unsaturation, n is an integer of at least 1, and m is an integer of zero or greater, which process comprises contacting sulfur dioxide, ethylene, optionally carbon monoxide, and optionally at least one ethylenically unsaturated hydrocarbon of at least 2 carbon atoms, in the presence of a catalyst obtained from (1) a compound of a Group VIII metal selected from palladium, cobalt and nickel, (2) a bidentate ligand of phosphorus, arsenic, or antimony, and (3) an anion of a non-hydrohalogenic acid having a pKa of less than 6.

REFERENCES:
patent: 2943077 (1960-06-01), deJong et al.
patent: 3448140 (1969-06-01), Gamlen et al.
patent: 3657202 (1972-04-01), Hammer et al.
patent: 4251340 (1981-02-01), Johnson et al.
patent: 4474978 (1984-10-01), Drent

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