Title:
SEPARATION FILM AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/182028
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a separation film that consists primarily of a cellulose ester and has a high film strength and a high elongation degree; and a production method therefor. Provided is a separation film which has a structure comprising a cellulose ester phase and voids, wherein the average pore diameter R is 0.001-6 μm, the value obtained from the expression: breaking strength (MPa)÷(100- porosity (%))×100 is 40 or greater, and the elongation degree is 10% or greater.
Inventors:
EIMURA HIROKI (JP)
YAMAMURA GOHEI (JP)
TAKADA KOICHI (JP)
YAMAMURA GOHEI (JP)
TAKADA KOICHI (JP)
Application Number:
PCT/JP2018/014002
Publication Date:
October 04, 2018
Filing Date:
March 30, 2018
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D71/14; B01D69/00; B01D69/02; D01F2/28
Domestic Patent References:
| WO2016052675A1 | 2016-04-07 | |||
| WO2009060836A1 | 2009-05-14 | |||
| WO2016052675A1 | 2016-04-07 |
Foreign References:
| JPH08108053A | 1996-04-30 | |||
| JPS5571810A | 1980-05-30 | |||
| JP2004331881A | 2004-11-25 | |||
| JP2002306937A | 2002-10-22 | |||
| JP2014128793A | 2014-07-10 | |||
| JP2004331881A | 2004-11-25 |
Other References:
GUILLEN, GREGORY R. ET AL.: "Preparation and Characterization of Membranes Formed by Nonsolvent Induced Phase Separation: A Review", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 50, 8 March 2011 (2011-03-08), pages 3798 - 3817, XP055264584, DOI: doi:10.1021/ie101928r
IND. ENG. CHEM. RES., vol. 50, 2011, pages 3798 - 3817
"Polymer alloy - Basic and Application", TOKYO KAGAKU DOJIN CO., LTD.
See also references of EP 3603780A4
IND. ENG. CHEM. RES., vol. 50, 2011, pages 3798 - 3817
"Polymer alloy - Basic and Application", TOKYO KAGAKU DOJIN CO., LTD.
See also references of EP 3603780A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: