Microcrystalline cellulose cushioning granules

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

Reexamination Certificate

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C536S124000, C514S054000, C514S057000, C424S457000, C424S458000, C424S465000, C424S489000, C424S490000, C424S494000, C424S496000

Reexamination Certificate

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06858725

ABSTRACT:
Granulation of microcrystalline cellulose with a granulating fluid consisting of water and a water-miscible, volatile, polar organic solvent yields porous granules which are comprised of particles that are larger than the ungranulated microcrystalline cellulose. This granulated microcrystalline cellulose is capable of cushioning controlled release particles and barrier coated particles from the compression forces used in tableting, thereby maintaining the physical integrity of the components of the tablet.

REFERENCES:
patent: 4837030 (1989-06-01), Valorose, Jr. et al.
patent: 4867985 (1989-09-01), Heafield et al.
patent: 5384130 (1995-01-01), Kamada
patent: 5607695 (1997-03-01), Ek et al.
patent: 5725886 (1998-03-01), Erkoboni et al.
patent: 5780055 (1998-07-01), Habib et al.
patent: 6117451 (2000-09-01), Kumar
patent: 6123964 (2000-09-01), Asgharnejad et al.
patent: 6149943 (2000-11-01), McTeigue et al.
patent: 6384020 (2002-05-01), Flanner et al.
patent: 61-213201 (1986-09-01), None
patent: WO 9118590 (1991-12-01), None
patent: WO 9710810 (1997-03-01), None
CRC Handbook of Chemistry and Physics, Editor Robert C. Weast, Ph.D., 60thEdition, Chemical Rubber Publishing Company, 2ndprinting, 1980, p. D-21, Compound No. 411.*
International Search Report for the corresponding PCT application, PCT/US00/31015.

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