초록 ▼

The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formula H-OR1 in which R1 denotes hydrogen, an alkyl radical having 1 to 24 carbon atoms or a hydroxyalkyl radical having 2 to 40 carbo

The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formula H-OR1 in which R1 denotes hydrogen, an alkyl radical having 1 to 24 carbon atoms or a hydroxyalkyl radical having 2 to 40 carbon atoms are disclosed together with their use as lubricants.

대표청구항 ▼

A polyether obtained by polymerization of an aa8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxy compound of the formula H－OR1 wherein R1 denotes hydrogen, an alkyl radical having 1 to 4 carbon atoms or a hydroxy-alkyl radical having 2 to 40 carbon atoms, said polymerization c

A polyether obtained by polymerization of an aa8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxy compound of the formula H－OR1 wherein R1 denotes hydrogen, an alkyl radical having 1 to 4 carbon atoms or a hydroxy-alkyl radical having 2 to 40 carbon atoms, said polymerization conducted in the presence of a polymerization initiator comprising a Lewis acid selected from the group consisting of boron trifluoride, boron trifluoride diethyl etherate, boron trifluoride tetrahydrofuranate, aluminum chloride, iron (III) chloride, tin (IV) chloride, titanium tetrachloride, tin chloride and antimony pentachloride, said polyether having a molecular weight of 40 to 10,000 and a kinematic viscosity at 40°C. of 5 to 3,000 mPa.s. A lubricant composition comprising a major amount of a polyether according to claim 1 and a diluent. A lubricant comprising a major amount of an oil of lubricating viscosity and a minor amount of a polyether according to claim 1.