Title:
WATERPROOF CELLULOSE SHEET AND METHOD FOR MANUFACTURING WATERPROOF CELLULOSE SHEET
Document Type and Number:
WIPO Patent Application WO/2016/072230
Kind Code:
A1
Abstract:
A waterproof cellulose sheet that comprises cellulose nanofibers carrying functional groups represented by -COOA, wherein: when standardized by regarding the total ionic strength detected by time-of-flight secondary ion mass spectrometry as 1, the alkali metal ionic strength or alkaline earth metal ionic strength is 0.020 or smaller; in -COOA, A represents an alkali metal, an alkaline earth metal or a hydrogen atom; and 20% (inclusive) to 90% (exclusive) of the functional groups represented by -COOA are -COOH groups. Thus, a waterproof cellulose sheet having good waterproofness and high transparency is provided.
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Inventors:
TOMIKAWA HARUKI (JP)
HASHIMOTO KIYOKAZU (JP)
HASHIMOTO KIYOKAZU (JP)
Application Number:
PCT/JP2015/079050
Publication Date:
May 12, 2016
Filing Date:
October 14, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
D21H11/20; C08B15/04; D21H15/02
Domestic Patent References:
WO2011121858A1 | 2011-10-06 | |||
WO2010134357A1 | 2010-11-25 |
Foreign References:
JP2011202010A | 2011-10-13 | |||
JP2014136775A | 2014-07-28 | |||
JP2003512540A | 2003-04-02 | |||
JP2014196580A | 2014-10-16 | |||
JP2010168572A | 2010-08-05 | |||
JP2009530440A | 2009-08-27 | |||
JPH07132140A | 1995-05-23 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
Mochitoshi Watanabe (JP)
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