Production of polyether polyols with reduced unsaturation

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

1991-01-08

1991-12-03

Kight, III, John

Mechanical guns and projectors

Projectile impelled by user-provided force

521167, 521174, 521128, 528 57, 536120, 252609, C08G 1806

Patent

active

050701258

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 hyroxyl content for the same weight percentage of ethylene oxide cap.

REFERENCES:
patent: 4134610 (1979-01-01), Lindewall
patent: 4920167 (1990-04-01), Ruetman et al.

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