2063. LIPSCOMB, R. D. (E. I. du Pont de Nemours & Co.). Polymerization of Sulfur Dioxide With Carbon Monoxide and Three-Component Solid Polymers Thereof With a Monoolefinic Hydrocarbon. United States Patent 2,634,254, Apr. 7, 1953; appl. filed Nov. 6, 1950; Serial No. 194,387; 10 claims (Cl. 260-63).

Claim 1. A 3-component solid polymer consisting of from 0.10-10 mole % of S dioxide, from 0.90-39 mole % of CO, and from 99-51 mole % of a polymerizable aliphatic monoolefinic hydrocarbon containing a terminal methylene group and from 2-4 C atoms.