Low-odor, higher molecular weight polyether polyols, a process f

Details Low-odor, higher molecular weight polyether polyols, a process f Low-odor, higher molecular weight polyether polyols, a process f

1997-01-08

1997-09-30

Foelak, Morton

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568622, 568623, 568624, 568680, C07C 4311, C07C 4318, C07C 4320

Patent

active

056727682

ABSTRACT:
Low-odor, higher molecular weight polyether polyols are produced by purifying the polyether polyols at temperatures of 110.degree. to 150.degree. C. and pressures of 10 to 70 hPa with the addition of 5 to 30% by weight of water, wherein the water is passed in finely divided form, with a droplet diameter of about 5 to 100.mu., through the polyether polyols to be purified for a time of metered addition of 1 to 5 hours.

REFERENCES:
patent: 4143072 (1979-03-01), Hetzel et al.

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