Control of yellow color in polyether polyols

Details Control of yellow color in polyether polyols Control of yellow color in polyether polyols

1987-05-01

1988-06-14

Kight, John

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

Organic compounds

Oxygen containing

568606, 568609, 568611, 568617, 568620, C08G 6530

Patent

active

047513314

ABSTRACT:
Polyether polyols are decolorized by heating to a temperature in excess of 95.degree. C. in the presence of water and air. The resulting polyols have minimal residual color, and can be used to prepare polyurethanes having low color.

REFERENCES:
patent: 3585229 (1971-06-01), Christian et al.
patent: 3925319 (1975-12-01), Hiatt et al.
patent: 4337369 (1982-06-01), Vanderpool et al.
patent: 4356330 (1982-10-01), Cuscurida et al.

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