Organic compounds -- part of the class 532-570 series – Organic compounds – Carbonate esters
Reexamination Certificate
2005-12-16
2009-12-08
Shiao, Rei-tsang (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbonate esters
C558S270000
Reexamination Certificate
active
07629485
ABSTRACT:
Production of an aromatic carbonic ester through an ester exchange reaction between a starting material and a reactant while distilling by-product alcohols and/or by-product dialkyl carbonates off the reaction system, wherein use is made of a specified catalyst.
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Asahi Kasei Chemicals Corporation
Shiao Rei-tsang
Staas & Halsey
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