Title:
Thin film composite membrane structure
Document Type and Number:
Japanese Patent JP6166351
Kind Code:
B2
Abstract:
Provided are thin film composite membrane structures comprising: a selective membrane layer for ion rejection attached to a support layer, the support layer comprising a multi-zone microfiltration membrane comprising: a porous support material; and at least two microfiltration zones, where a first zone comprises a first membrane and a second zone that is attached to the first zone and that coats at least a portion of the porous support material. Thin film composite membrane structures may be provided in reverse osmosis systems or nanofiltration systems. Also, thin film composite membrane structures may be provided in direct osmotic concentration systems, forward osmosis systems, or pressure retarded osmosis systems.
Inventors:
Jeffrey Earl McCutcheon
Thomas Jay Hamlin
Mark T. Mayer Ring
Reway howan
Thomas Jay Hamlin
Mark T. Mayer Ring
Reway howan
Application Number:
JP2015505764A
Publication Date:
July 19, 2017
Filing Date:
March 15, 2013
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
University of Connecticut
University of Connecticut
International Classes:
B01D69/12; B01D61/00; B01D61/02; B01D61/14; B01D69/00; B01D69/10; B01D71/26; B01D71/32; B01D71/34; B01D71/48; B01D71/56; B01D71/68; B32B3/24
Domestic Patent References:
| JP62180702A | ||||
| JP2006130497A | ||||
| JP2008253906A | ||||
| JP2009262089A | ||||
| JP2010099549A |
Foreign References:
| WO2012137635A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Masatoshi Takahashi
Kenichi Kato
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Masatoshi Takahashi
Kenichi Kato