A process for purifying organic isocyanates, the organic...

Details A process for purifying organic isocyanates, the organic... A process for purifying organic isocyanates, the organic...

C - Chemistry, Metallurgy

07

C

C07C 263/20 (2006.01) C07C 265/14 (2006.01)

Patent

CA 2307992

The invention provides a new process for purifying organic isocyanates or isocyanate mixtures by mixing the isocyanates or isocyanate mixtures to be purified with at least one alcohol and/or thiol or a mixture of alcohols and/or thiols, heating the resultant mixture and simultaneously or subsequently degassing the mixture and/or working up the mixture by distillation and/or extraction.

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