Production of polyether polyols with reduced unsaturation

Details Production of polyether polyols with reduced unsaturation Production of polyether polyols with reduced unsaturation

1988-11-18

1991-04-23

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536124, 568620, 568618, 521159, 521163, 521167, 521176, C07H 100, C08B 3700

Patent

active

050101870

ABSTRACT:
Polyether polyols having an equivalent weight of from about 200 to about 5000 are prepared by the process of this invention. The process uses barium- or strontium-containing alkoxylation catalysts to provide products with reduced unsaturation in comparison to similar products produced with potassium hydroxide catalysis. The use of these catalysts also increases the capping efficiency with ethylene oxide to provide products with a higher primary hydroxyl content for the same weight percentage of ethylene oxide cap.

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patent: 4269945 (1981-05-01), Vanderhider et al.
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patent: 4453023 (1984-06-01), McCain et al.

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