Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 1, 2007
Patent Application Number
10493498
Date Filed
October 17, 2002
Patent Primary Examiner
Patent abstract
In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfonamide, based on the total amount of primary amine and isocyanate formed in the reaction solution.
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