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

1996-08-13

1997-07-29

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 76, 528 77, 568679, 568680, C08G 1832

Patent

active

056523190

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: 3653183 (1972-04-01), Sanders et al.
patent: 4143072 (1979-03-01), Hetzel et al.
patent: 5248794 (1993-09-01), Choppell et al.

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