Abstract:
A method for producing high reactive polybutene (HRPB), in which carbon-carbon double bond is positioned at an end of polybutene, is disclosed. The high reactive polybutene having 300˜5000 of number average molecular weight (Mn) can be produced from a raw material containing isobutene, wherein a polymerization reaction of the isobutene is carried out in the presence of a catalyst system including secondary alkylether, tertiary alcohol, and boron trifluoride, the amount of boron trifluoride is 0.05˜1.0 weight part per 100 weight part of isobutene, the mole ratio of a co-catalyst including secondary alkylether and tertiary alcohol:boron trifluoride is 1.0˜2.0:1, and the mole ratio of secondary alkylether:tertiary alcohol is 0.5˜1.2:1.
Abstract:
A fuel oil detergent which efficiently constricts precipitate formation and octane number requirement increase in a carburetor, injector, and inlet system of an internal combustion engine, i.e., a hydropoly(oxyalkylene) oxyalkyl amine based compound, a process for preparing the compound, and a fuel oil composition including the compound.
Abstract:
A method for producing high reactive polybutene (HRPB), in which carbon-carbon double bond is positioned at an end of polybutene, is disclosed. The high reactive polybutene having 300˜5000 of number average molecular weight (Mn) can be produced from a raw material containing isobutene, wherein a polymerization reaction of the isobutene is carried out in the presence of a catalyst system including secondary alkylether, tertiary alcohol, and boron trifluoride, the amount of boron trifluoride is 0.05˜1.0 weight part per 100 weight part of isobutene, the mole ratio of a co-catalyst including secondary alkylether and tertiary alcohol:boron trifluoride is 1.0˜2.0:1, and the mole ratio of secondary alkylether:tertiary alcohol is 0.5˜1.2:1.