Preparation of aliphatic oligocarbonate diols

Details Preparation of aliphatic oligocarbonate diols Preparation of aliphatic oligocarbonate diols

2007-05-21

2008-09-02

Price, Elvis O (Department: 1621)

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

Organic compounds

Carbonate esters

Reexamination Certificate

active

07420077

ABSTRACT:
The present invention relates to an improved process for preparing aliphatic oligocarbonate diols by transesterifying dimethyl carbonate (DMC) with aliphatic diols.

REFERENCES:
patent: 6818784 (2004-11-01), Tillack et al.
patent: 2003/0009047 (2003-01-01), Tillack et al.
patent: 2004/0143130 (2004-07-01), Tillack et al.

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