PATENTS

      1510.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Production of Sulfonic Acids and Esters.]  Belgian Patent 443,658.  Dec. 9. 1941. Chem. Zentralb., 1943. I. p. 2142.

            Saturated, nonaromatic hydrocarbons, alcohols, carboxylic acids or their derivatives are simultaneously reacted with SO₂, O₂, and photoactive rays.