Preparation of aliphatic oligocarbonate polyols

Details Preparation of aliphatic oligocarbonate polyols Preparation of aliphatic oligocarbonate polyols

2008-01-08

2008-01-08

Price, Elvis O. (Department: 1621)

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

Organic compounds

Carbonate esters

Reexamination Certificate

active

07317121

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

REFERENCES:
patent: 6833433 (2004-12-01), Schlemenat et al.
patent: 2003/0009047 (2003-01-01), Tillack et al.
patent: 2004/0143130 (2004-07-01), Tillack et al.

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