Cellulose granules for carrying functional substances

Details Cellulose granules for carrying functional substances Cellulose granules for carrying functional substances

2011-03-22

2011-03-22

Kiliman, Leszek (Department: 1788)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C428S407000, C264S008000, C536S056000

Reexamination Certificate

active

07910209

ABSTRACT:
Cellulose granules small enough such that they can be retained in a cigarette filter and capable of carrying sufficient amounts of volatile functional substance and vaporizing it easily. The cellulose granules are obtained from an extrusion granulating step and a spheronizing step, with smaller variability in particle diameter than that of conventional cellulose granules.

REFERENCES:
patent: 5972507 (1999-10-01), Morimoto et al.
patent: 7514552 (2009-04-01), Yamasaki et al.
patent: 2007/0028801 (2007-02-01), Yamasaki et al.
patent: 1858093 (2006-11-01), None
patent: 1-317538 (1989-12-01), None
patent: 2004-027428 (2004-01-01), None
patent: 2004-27428 (2004-01-01), None
patent: 2004/106416 (2004-12-01), None
International Search Report dated Mar. 18, 2008 in the International (PCT) Application PCT/JP2007/074656 of which the present application is the U.S. National Stage.
English translation of Chinese Office Action dated May 12, 2010 issued in connection with Chinese counterpart application of present U.S. application.

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