Manufacture of polytrimethylene ether glycol

Details Manufacture of polytrimethylene ether glycol Manufacture of polytrimethylene ether glycol

2007-01-16

2007-01-16

Acquah, Samuel A. (Department: 1711)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C524S414000, C524S425000, C524S433000, C524S438000, C524S742000, C524S745000, C524S767000, C568S679000

Reexamination Certificate

active

11336004

ABSTRACT:
The present invention relates to a process of manufacture of polytrimethylene ether glycol, in which one or more inorganic compounds selected from an inorganic salt and an inorganic base is utilized during certain purification steps to reduce phase separation time.

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U.S. Appl. No. 11/204,731, filed Aug. 16, 2005.
U.S. Appl. No. 11/204,713, filed Aug. 16, 2005.

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