Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2003-10-29
2010-11-02
Jiang, Shaojia Anna (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S123100, C536S123120, C536S124000
Reexamination Certificate
active
07825240
ABSTRACT:
There are described novel cross-linked polymers based on bis-silane, bis-thioether, bis-sulphoxide, bis-sulphone and butane-di-yl derivatives of polysaccharides and oligosaccharides, their shaping as support materials useful for the separation or preparation of enantiomers; a process for preparing the said cross-linked polymer compounds, a process for preparing balls of support materials containing the said cross-linked polymer compounds; a method of obtaining balls of support materials useful in chromatography or in organic synthesis; and the use of the said support materials containing the cross-linked polymer compounds in separation or in preparation of enantiomers, through employment in chromatography or organic synthesis processes in a heterogeneous medium; and the use of the said cross-linked polymer compounds in the form of membranes in processes using percolation through membranes for the separation or the preparation of enantiomers.
REFERENCES:
patent: 2598407 (1952-05-01), Marvel
patent: 3501260 (1970-03-01), Tesoro
patent: 3627872 (1971-12-01), Parkinson
patent: 3720500 (1973-03-01), Gale et al.
patent: 5574023 (1996-11-01), Shibata et al.
patent: 5772876 (1998-06-01), Murakami
patent: 0 168 363 (1986-01-01), None
patent: 0 738 284 (1996-01-01), None
patent: 1 307 274 (1963-02-01), None
patent: 974054 (1964-11-01), None
patent: 991936 (1965-05-01), None
patent: WO 95/18833 (1995-07-01), None
patent: WO 97/49733 (1997-12-01), None
Patel et al. (Melliand Textilberichte (1923-1969) (1968), 49 (1), 85-91) (Abstract Sent).
Andreev et al. (Vysokomolekulyarnye Soedineniya, Seriya B: Kratkie Soobshcheniya (1977), 19 (4), 273-6) (Abstract Sent).
Pouyani et al. (Bioconjugate Chem. 1994, 5, 339-347).
Katz et al. (Journal of Polymer Science: Polymer Chemistry Edition, vol. 13, 645-658 (1975) ).
Minguillon, C. et al. “Bonded cellulose-derived high performance liquid chromatography . . . ” J. Chromatog. A, vol. 728, pp. 415-422, (1996).
Olivers, L. et al. “Chiral chromatographic discrimination ability . . . ” J. Liq. Chromatog. vol. 18, No. 8, pp. 1521-1532, (1995).
Franco, P. et al. “3,5-Dimethylphenylcarbamates of amylose, chitosan, and cellulose . . . ” J. Chromatog. A, vol. 796, pp. 265-272, (1998).
Okamoto, Y. et al. “Useful chiral packing materials for high-performance liquid chromatographic resolution of enantiomers” J. Am. Chem. Soc., pp. 5357-5359, vol. 106, No. 18, 1984.
Giuliana C. Tesoro, “Cross-Linking of Cellulose with Polyfunctional Sulfones under Anhydrous Conditions”, vol. 32, No. 3, Mar. 1, 1962, pp. 189-190.
Eka Chemicals AB
Henry Michael C
Jiang Shaojia Anna
Millen White Zelano & Branigan P.C.
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