Process for the preparation of urethanes

Details Process for the preparation of urethanes Process for the preparation of urethanes

C - Chemistry, Metallurgy

07

C

260/468

C07C 271/06 (2006.01)

Patent

CA 1144563

Mo-2164 LeA 19,853 PROCESS FOR THE PREPARATION OF URETHANES ABSTRACT OF THE DISCLOSURE A process for the preparation of urethanes. Urethanes having the general formula R1(NHCOOR2)n are reacted with an alcohol at a temperature of 120 to 400°C in amounts such that, for every mol of the urethane, at least one mol of the alcohol is present. R1 is a radical obtained by removing the isocyanate groups from an n-functional organic isocyanate, which isocyanate has a boiling point greater than 100°C at atmospheric pressure. R2 is a radical obtained by removing the hydroxyl group from a monohydric alcohol which has a boiling point greater than 140°C at atmospheric pressure. LeA 19,853

362930

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