Method for producing highly reactive polyisobutenes

Details Method for producing highly reactive polyisobutenes Method for producing highly reactive polyisobutenes

2006-01-17

2006-01-17

Teskin, Fred (Department: 1713)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C526S237000

Reexamination Certificate

active

06987165

ABSTRACT:
A process for the preparation of highly reactive polyisobutenes is described, in which isobutene is polymerized in the presence of a complex of boron trifluoride and at least one cocatalyst in a liquid organic phase at a reaction temperature of from −60 to −4° C. and water is added in two stages to the organic phase for catalyst deactivation and catalyst extraction.

REFERENCES:
patent: 4940833 (1990-07-01), Drake et al.
patent: 5286823 (1994-02-01), Rath
patent: 5408018 (1995-04-01), Rath
patent: 6518373 (2003-02-01), Sandrock et al.
patent: 969 026 (2000-01-01), None
patent: 99/31151 (1999-06-01), None
Derwent Abst. 2002-291794/33.
Chem.Abst. vol. 136,No. 3, 2002, p. 859.
Derwent Abst. 2001-293133/30.
JP 7 96713 English Translation.

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