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Title:
CELLULOSE POWDER
Document Type and Number:
WIPO Patent Application WO/2013/180249
Kind Code:
A1
Abstract:
This cellulose powder has: an average degree of polymerization of 100 to 350; a weight average particle size of over 30 μm, but less than 250 μm; an apparent specific volume of 2 to less than 15 cm3/g; and an organic carbon content from residual impurities, which is defined by the total organic carbon content (%) during 1% NaOH extraction to the total organic carbon content (%) during pure water extraction, of over 0.07 to 0.3%.

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Inventors:
OBAE KAZUHIRO (JP)
KAKIZAWA MASAYUKI (JP)
YAMASHITA MITSUO (JP)
Application Number:
PCT/JP2013/065114
Publication Date:
December 05, 2013
Filing Date:
May 30, 2013
Export Citation:
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Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
International Classes:
C08B15/00; A61K9/20; A61K47/38; C08J3/12; C08J5/00
Domestic Patent References:
WO2012002253A12012-01-05
WO2006115198A12006-11-02
WO2002002643A12002-01-10
WO2009157564A12009-12-30
WO2006115198A12006-11-02
Foreign References:
JP2005232260A2005-09-02
JPH08104650A1996-04-23
JPS562047B21981-01-17
JPS4026274B1
JP2009242328A2009-10-22
JPS4026274B1
JPS562047B21981-01-17
JPS57212231A1982-12-27
Other References:
See also references of EP 2857421A4
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)
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