Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2005-08-30
2005-08-30
Desai, Rita (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S129000
Reexamination Certificate
active
06936730
ABSTRACT:
A process for producing a hydrogenated ester by hydrogenating an unsaturated group-containing ester having a specific structure by using a hydrogenating catalyst so as to obtain a hydrogenated ester with a high selectivity. It is preferred that the unsaturated group-containing ester as the raw material is diluted with an inert solvent and/or the concentration of carboxylic acid contained in the raw material is made 1 wt. % or less so as to effect a hydrogenation reaction. The hydrogenating catalyst to be used for the above hydrogenation may preferably be one comprising at least one metal selected from Group 8 elements, Group 9 elements, and Group 10 elements in the periodic table according toNomenclature of Inorganic Chemistry, Revised Edition, 1989,International Union of Pure and Applied Chemistry, and preferably has an acidity of 1.0×10−1mmol/g or less.
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Fujimoto Masayuki
Ohga Kazuhiko
Tajima Tsuneo
Uchida Hiroshi
Desai Rita
Reyes Hector M.
Showa Denko K.K.
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