Appeal 2007-0711
Reexamination 90/006,706
(volume ratio: 9/1) was fed as the eluent. The solvent circulating the
solvent circulation passage was the same as the eluent.
… [A]n extract containing a strongly adsorbable optical isomer
(… optical purity: 98% e.e.) was obtained through the outlet for the
extract of the simulated moving bed apparatus.
(Negawa, col. 7, l. 68, to col. 8, l. 11; emphasis added).
… α-phenylethyl alcohol…was fed. … [A] liquid mixture of hexane
and isopropanol (volume ratio: 9/1) was fed as the eluent. The solvent
circulating the solvent circulation passage was the same as the eluent.
… [A]n extract containing a strongly adsorbable optical isomer
(… optical purity: 98% e.e.) was obtained through the outlet for the
extract of the simulated moving bed apparatus.
(Negawa, col. 9, ll. 1-10; emphasis added).
… α-phenylethyl alcohol was fed as a liquid containing an optical
isomer mixture in the simulated moving bed apparatus. … [A] liquid
mixture of hexane and isopropanol (volume ratio 90/10) was fed as
the eluent. The solvent circulating the solvent circulation passage was
the same as the eluent. …
… [A]n extract containing a strongly adsorbable optical isomer
[(R)-(+)-α-phenylethyl alcohol)](… optical purity: at least 99.9% e.e.)
was obtained through the outlet for the extract of the simulated
moving bed apparatus.
(Negawa, col. 9, l. 55, to col. 10, l.-8; emphasis added).
2. Pirkle
Pirkle’s “invention relates to a chiral selector useful in separating
underderivatized enantiomers of nonsterodial anti-inflammatory agents …
and relates to a process for achieving such separation utilizing the chiral
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