Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus acids or salts thereof
Reexamination Certificate
2006-06-20
2006-06-20
Zucker, Paul A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus acids or salts thereof
C562S044000
Reexamination Certificate
active
07064234
ABSTRACT:
The present invention relates to an enantioselective cation-exchange material, comprising a chiral selector (1), composed of a chiral component (2) and at least one cation-exchange group (X), a spacer (3) and a carrier (4). The cation-exchange material is characterized in that the chiral component (2) has a molecular weight of less than 1,000 and the at least one cation-exchange group (X) is an acid group having a pKa<4.0.
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Lammerhofer Michael
Lindner Wolfgang
Birch & Stewart Kolasch & Birch, LLP
Zucker Paul A.
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