C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/30 (2006.01) A61K 8/86 (2006.01) A61K 47/10 (2006.01) A61Q 19/00 (2006.01) C08G 18/48 (2006.01)
Patent
CA 2183400
Low-odor, higher molecular weight polyether polyols are produced by purifying the polyether polyols at temperatures of l10 to 150°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 µ, through the polyether polyols to be purified for a time of metered addition of 1 to 5 hours.
Gupta Pramod
Jacobs Gundolf
Leuridan Joel
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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