Title:
種々のpH及びイオン強度の溶液における乾燥ナノ結晶セルロースの分散性及びバリア特性を制御する方法
Document Type and Number:
Japanese Patent JP2012512281
Kind Code:
A
Abstract:
A new method to control the dispersibility of dried nanocrystalline cellulose (NCC) by controlling solution pH and ionic strength is provided; when stable, non-reswellable acid-form NCC (H-NCC) films are placed in concentrated sodium hydroxide solutions, they swell but do not disperse; while sodium-form NCC (Na-NCC) or other NCC films having neutral monovalent counterions readily disperse in pure water, Na-NCC films placed in hydrochloric acid and sodium chloride as well as sodium hydroxide solutions of sufficient ionic strength swell, but do not disperse; similar properties are observed for freeze-dried NCC products. The dispersibility of these NCC films is a function of the ionic strength and the identity of the electrolyte solutions to which they are exposed. NCC films are envisaged that have barrier properties in an electrolyte solution but that disintegrate or disperse when rinsed with pure water at the end of their useful lifespan.
Inventors:
Beck, Stephanie
Bouchard, Jean
Berry, richard
Bouchard, Jean
Berry, richard
Application Number:
JP2011541039A
Publication Date:
May 31, 2012
Filing Date:
December 08, 2009
Export Citation:
Assignee:
FP Innovations
International Classes:
C08J5/18
Domestic Patent References:
| JP2005171200A | 2005-06-30 | |||
| JPH09508658A | 1997-09-02 | |||
| JPH093243A | 1997-01-07 | |||
| JPH07268129A | 1995-10-17 | |||
| JP2004269708A | 2004-09-30 |
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Kameoka Mikio
Katsunori Ando
Yuichiro Asano
Yoichiro Uemura
Makoto Tatsumi
Hideto Asamura
Hajime Asamura
Kameoka Mikio
Katsunori Ando
Yuichiro Asano
Yoichiro Uemura
Makoto Tatsumi