Isobutene polymerization process

Details Isobutene polymerization process Isobutene polymerization process

1998-03-26

1999-10-26

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

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

585510, 526 86, 526209, 526210, 526237, C07C 202, C07C 204, C08F 200, C08F 400

Patent

active

059732199

ABSTRACT:
A process for controlling the molecular weight distribution of polyisobutene formed during a liquid phase polymersiation reaction using a catalyst comprising boron trifluoride and taking place in a reactor having condensers associated with it which process involves introducing an electron donor above the level of liquid in the reactor to minimize the reaction of isobutene with free gaseous boron trifluoride in the condensers thereby minimizing the formation of unwanted polymers.

REFERENCES:
patent: 4605808 (1986-08-01), Samson
patent: 5068490 (1991-11-01), Eaton

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