Organic compounds -- part of the class 532-570 series – Organic compounds – Cyclopentanohydrophenanthrene ring system containing
Reexamination Certificate
2005-12-27
2005-12-27
Badio, Barbara P. (Department: 1617)
Organic compounds -- part of the class 532-570 series
Organic compounds
Cyclopentanohydrophenanthrene ring system containing
C552S544000
Reexamination Certificate
active
06979743
ABSTRACT:
Processes for preparing substantially citrostadienol-free phytosterols are disclosed. The processes described include dissolving a liquid phytosterol in a hydrocarbon solvent, optionally with added methanol, and crystallizing the phytosterol compounds. Also described are the resulting phytosterols which are substantially citrostadienol-free, and preferably contain less than 0.5% by weight citrostadienol.
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Gutsche Bernhard
Schwarzer Joerg
Badio Barbara P.
Cognis Deutschland GmbH & Co. KG
Daniels, III John F.
Ortiz Daniel S.
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