944a. ------. [HÄUBER, H., AND HIRSCHBECK, J.] (I. G. Farbenindustrie A. G.). Hydrocarbon-Oil Production by Polymerizing Olefinic Gases. United States Patent 2,159,148, May 23, 1939. Chem. Abs., vol. 33, 1939, p. 7091.

Patent Abstracts

Catalyst such as AlCl₃ or BF₃ is used for the polymerization of a gas, such as one formed by reaction of CO with H₂, containing over 30% of gaseous olefins with a preponderating proportion of butylenes and amylenes, and the polymerization product is subjected to hydrogenation and to treatment with superheated steam in the presence of a caustic alkali to produce an insulating oil.