Epoxidation of isobutene polymers

Details Epoxidation of isobutene polymers Epoxidation of isobutene polymers

2006-08-28

2010-06-22

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S387000, C549S526000, C549S531000

Reexamination Certificate

active

07741410

ABSTRACT:
A process is described for epoxidizing an ethylenically unsaturated isobutene polymer, in which an organic phase comprising the isobutene polymer is contacted with an aqueous phase which comprises formic acid and hydrogen peroxide. The process affords essentially quantitative conversions after a short reaction time.

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U.S. Appl. No. 12/252,218, filed Oct. 21, 2008, Yoshida.

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