LOW-ODOR, HIGHER MOLECULAR WEIGHT POLYETHER POLYOLS, A PROCESS FOR PRODUCING THEM, AND THEIR USE FOR THE PRODUCTION OF POLYMERS, COSMETICS AND PHARMACEUTICAL PRODUCTS SYNTHESIZED FROM POLYETHER POLYOLS

摘要

Low-odor, higher molecular weight polyether polyols are produced by purifyingthe polyether polyols at temperatures of l10 to 150°C and pressures of 10 to70 hPa with the addition of 5 to 30% by weight of water, wherein the water ispassed in finely divided form, with a droplet diameter of about 5 to 100 µ,through the polyether polyols to be purified for a time of metered addition of 1 to5 hours.