A PROCESS FOR PURIFYING ORGANIC ISOCYANATES, THE ORGANIC ISOCYANATES SO PURIFIED AND THEIR USE

摘要

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.