Method for producing polybutene

Details Method for producing polybutene Method for producing polybutene

2006-03-28

2008-08-12

Caldarola, Glenn (Department: 1797)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C585S520000, C526S209000, C526S210000, C526S212000, C526S237000, C526S348700

Reexamination Certificate

active

07411104

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.

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