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Return to Abstracts of Patents Return to Abstracts of Patents 1250-1499 Patent Abstracts1327. ------. [I. G. FARBENINDUSTRIE, A. G.] [Lubricants.] Belgian Patent 428,938, July 1, 1938: appl. filed in Germany July 5, 1937. Chem. Zentralb., 1940. I. p. 326. Inorganic halogenides with acid reaction are used got the polymerization of compounds with double bonds to products of high molecular weight, together with cracked or dehydrogenated products of synthetic hydrocarbons. |