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US4259255A Process for the production of isocyanates 失效
生产异氰酸酯的方法

Process for the production of isocyanates
摘要:
The instant invention relates to a process for the production of isocyanates in which tert.-alkyl urethanes are reacted with phosgene and to isocyanatoaryl sulphonic acid esters obtainable for the first time by this process.
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