Process for preparing capped polyoxyalkylene block polyethers

Details Process for preparing capped polyoxyalkylene block polyethers Process for preparing capped polyoxyalkylene block polyethers

1988-08-30

1990-02-20

Mars, Howard T.

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

Organic compounds

Oxygen containing

568607, 568606, 568618, 568619, 568620, 564399, 564475, 536120, C07L 4103

Patent

active

049028340

ABSTRACT:
A process is disclosed for the preparation of capped polyoxyalkylene block polyethers with exceptionally low hydroxyl numbers and correspondingly high capping efficiency. This improvement is accomplished through the use of cesium hydroxide catalysis during oxyethylation.

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