Polyethers and their use as carrier oils

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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Details

C568S620000, C208S014000, C208S015000, C208S016000, C044S443000

Reexamination Certificate

active

07470823

ABSTRACT:
The present invention relates to polyethers which are obtainable from 1 -butene oxide and an alcohol using a double metal cyanide compound as a catalyst and have a content of unsaturated components of 6 mol% or more, to a process for preparing such a polyether and also to the use of a polyether according to the invention as a carrier oil or in a carrier oil formulation, in particular in additive packages for gasoline fuels, and furthermore also to carrier oil formulations and also to fuels comprising a polyether according to the invention.

REFERENCES:
patent: 2841479 (1958-07-01), Hefner et al.
patent: 4877416 (1989-10-01), Campbell
patent: 5004478 (1991-04-01), Vogel et al.
patent: 5470813 (1995-11-01), Le-Khac
patent: 6699961 (2004-03-01), Eleveld et al.
patent: 6821308 (2004-11-01), Combs et al.
patent: 6919486 (2005-07-01), Dexheimer
patent: 7012164 (2006-03-01), Yamada et al.
patent: 2004/0073069 (2004-04-01), Heider et al.
patent: 0 374 461 (1990-06-01), None
patent: 98 44022 (1998-10-01), None

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