Process for making linear polyethers

Details Process for making linear polyethers Process for making linear polyethers

1981-07-27

1982-11-16

Mars, Howard T.

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

Organic compounds

Oxygen containing

568607, 568608, 568619, 568620, 568625, 568867, C07C 4103

Patent

active

043595898

ABSTRACT:
An improved process for making linear polyethers having a relatively narrow molecular weight distribution comprises contacting a monoepoxide with a salt selected from the group consisting of fluoborate, fluophosphate, fluoantimonate and fluoarsenate salts of a metal selected from the group consisting of alkali metals, alkaline earth metals, lead, nickel, aluminum, cadmium, cobalt, tin, zinc and copper in the presence of a hydroxyl-containing compound at a controlled temperature of about -78.degree. C. to less than +20.degree. C. and in the absence of any additional acid.

REFERENCES:
patent: 3359217 (1967-12-01), Brandner
patent: 3850856 (1974-11-01), Dreyfus
patent: 3969417 (1976-07-01), Umbach et al.
patent: 4112231 (1978-09-01), Weibull
patent: 4282387 (1981-08-01), Olstowski et al.

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