Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-08-01
2006-08-01
Prize, Elvis O. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S852000, C568S854000, C568S869000
Reexamination Certificate
active
07084311
ABSTRACT:
Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.
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Ames Tyler T.
Diffendall George F.
Seapan Mayis
Sunkara Hari Babu
E. I. Du Pont de Nemours and Company
Miller Mark D.
Prize Elvis O.
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