Title:
THIN-FILM SHEET INCLUDING CELLULOSE FINE-FIBER LAYER
Document Type and Number:
WIPO Patent Application WO/2016/047764
Kind Code:
A1
Abstract:
The present invention provides a thin-film sheet configured from a single layer or a plurality of layers less than or equal to three layers including at least a cellulose fine-fiber layer that includes regenerated cellulose fine fibers by 50 wt% or more, wherein the thin-film sheet achieves improvements in both thermal stability (thermal coefficient of linear expansion and retention of elasticity at high temperature) and sheet strength, and is characterized in that the requirements: (1) the specific surface area equivalent fiber diameter of fibers constituting the cellulose fine-fiber layer is 0.20-2.0 μm inclusive; (2) the air impermeability is 1-100,000 s/100 ml inclusive; and (3) the film thickness is 2-22 μm inclusive are satisfied. The present invention also provides a composite sheet, a composite prepreg sheet, a separator for power storage devices, etc., that include the thin-film sheet.
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Inventors:
ONO HIROFUMI (JP)
TAKASU SHUJI (JP)
SAITO YAMATO (JP)
TAKASU SHUJI (JP)
SAITO YAMATO (JP)
Application Number:
PCT/JP2015/077146
Publication Date:
March 31, 2016
Filing Date:
September 25, 2015
Export Citation:
Assignee:
ASAHI KASEI FIBERS CORP (JP)
International Classes:
D21H11/18; B32B29/00; C08J5/04; C08J5/24; D21H13/08; H01G9/02; H01G11/52; H01M50/443; H01M50/489; H01M50/491
Foreign References:
JP2010287697A | 2010-12-24 | |||
JPH11168033A | 1999-06-22 | |||
JP2012036529A | 2012-02-23 | |||
JP2008186707A | 2008-08-14 | |||
JP2010232202A | 2010-10-14 | |||
JP2008106152A | 2008-05-08 | |||
JP2000003834A | 2000-01-07 |
Other References:
See also references of EP 3199701A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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