Title:
CELLULOSE ACETATE AND METHOD FOR PRODUCING CELLULOSE ACETATE
Document Type and Number:
WIPO Patent Application WO/2017/122228
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide cellulose acetate with which a hollow fiber membrane having excellent salt rejection and water permeability can be produced. The cellulose acetate has: a total content of calcium and magnesium of 2.8 to 3.5 μmol/g; a 6 percent viscosity of 40 to 80 mPa∙s; a degree of filtration Kw of 35 g-1 or less; a molecular weight distribution Mw/Mn of 3.00 or less; and a degree of acetylation of 61.3 to 62.3%.
Inventors:
OYAMADA NAOHIRO
HIGUCHI AKIHIRO
HIGUCHI AKIHIRO
Application Number:
PCT/JP2016/000117
Publication Date:
July 20, 2017
Filing Date:
January 12, 2016
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C08B3/06
Domestic Patent References:
| WO2000009247A1 | 2000-02-24 |
Foreign References:
| JP2000212201A | 2000-08-02 | |||
| JP2000212202A | 2000-08-02 | |||
| JPH09272701A | 1997-10-21 | |||
| JPH03205401A | 1991-09-06 | |||
| JPS60139701A | 1985-07-24 |
Other References:
THE CELLULOSE SOCIETY OF JAPAN , CELLULOSE NO JITEN, 10 November 2000 (2000-11-10), pages 474 - 479 , 517 to 522
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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