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Return to Abstracts of Patents Return to Abstracts of Patents 1250-1499 Patent Abstracts1330. ------. [I. G. FARBENINDUSTRIE, A. G.] [Lubricants.] Italian Patent 381,194, Mar. 5, 1940. Chem. Zentralb., 1942, I. p. 2737. Relatively light motor lubricants, for example, viscosity 11º E. at 38º and 1.79º E at 99º, are blended with highly viscous products, which were obtained by polymerization of propylene or of mixtures of propylene and butylenes, or better of fractions of hydrocarbons synthesized from CO and H2 over a Fe catalysts. Lubricants are thus obtained having a viscosity of at least 6º E. at 99º. |