Method for producing polyisobutene

Details Method for producing polyisobutene Method for producing polyisobutene

2006-10-10

2010-02-16

Rábago, Roberto (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S088000, C526S237000

Reexamination Certificate

active

07662900

ABSTRACT:
The present invention relates to a process for preparing polyisobutene by polymerizing isobutene using an inert diluent and a halogen-containing Lewis acid as a catalyst, wherein the isobutene in the form of droplets is contacted with the Lewis acid in a polymerization apparatus.

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Wieland-Berghausen S., et al: “Comparison of Microencapsulation Techniques for the Water-Soluble Drugs Nitenpyram and Clomipramine HCI”, Journal of Controlled Release, vol. 85, No. 1-3, pp. 35-43, XP004397763, 2002.

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