|
BE793504A
(fr)
*
|
1971-12-30 |
1973-06-29 |
Montedison Spa |
Membranes anisotropes de retro-osmose et leur procede de preparation
|
|
US3817386A
(en)
*
|
1972-05-03 |
1974-06-18 |
Westinghouse Electric Corp |
Reverse osmosis membranes from pyrrone polymer precursors
|
|
US3853754A
(en)
*
|
1972-07-20 |
1974-12-10 |
Du Pont |
Membrane separation of homogeneous catalysts from nitrile solutions
|
|
US3886066A
(en)
*
|
1972-11-06 |
1975-05-27 |
Du Pont |
Tannin treatment for non-porous semipermeable membranes
|
|
US4129559A
(en)
*
|
1973-01-16 |
1978-12-12 |
Montedison S.P.A. |
Reverse osmosis anisotropic membranes based on polypiperazine amides
|
|
ZA74296B
(en)
*
|
1973-01-16 |
1974-11-27 |
Montedison Spa |
Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
|
|
GB1484860A
(en)
*
|
1973-11-22 |
1977-09-08 |
United States Borax Chem |
Manufacture of boric acid
|
|
DE2554922A1
(de)
*
|
1975-12-06 |
1977-06-16 |
Bayer Ag |
Semipermeable membranen aus copolyamiden
|
|
ES462585A1
(es)
*
|
1976-09-24 |
1978-07-16 |
Bauer Ag |
Procedimiento para la obtencion de membranas semipermeables.
|
|
JPS5417196Y2
(xx)
*
|
1976-10-21 |
1979-07-03 |
|
|
|
US4259183A
(en)
*
|
1978-11-07 |
1981-03-31 |
Midwest Research Institute |
Reverse osmosis membrane
|
|
DE2855529A1
(de)
*
|
1978-12-22 |
1980-06-26 |
Babcock Brown Boveri Reaktor |
Verfahren und einrichtung zum deborieren von primaerkuehlmittel einer wassergekuehlten kernreaktoranlage
|
|
US4277344A
(en)
*
|
1979-02-22 |
1981-07-07 |
Filmtec Corporation |
Interfacially synthesized reverse osmosis membrane
|
|
US4337154A
(en)
*
|
1979-04-04 |
1982-06-29 |
Nippon Shokubai Kagaku Kogyo Co., Ltd. |
Crosslinked composite semipermeable membrane
|
|
US4387024A
(en)
*
|
1979-12-13 |
1983-06-07 |
Toray Industries, Inc. |
High performance semipermeable composite membrane and process for producing the same
|
|
DE3028213C2
(de)
*
|
1980-07-25 |
1990-12-06 |
Akzo Gmbh, 5600 Wuppertal |
Verfahren zur Herstellung einer Ultrafiltrationsmembran aus Polyamid und daraus hergestellte Membran
|
|
US4663050A
(en)
*
|
1982-01-18 |
1987-05-05 |
Standard Oil Company |
Semipermeable membranes prepared from polymers containing adjacent, pendent carboxy groups
|
|
US4659475A
(en)
*
|
1984-03-19 |
1987-04-21 |
Midwest Research Institute |
Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct)
|
|
IT1222627B
(it)
*
|
1987-09-09 |
1990-09-05 |
Separem Spa |
Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento
|
|
US4859384A
(en)
*
|
1987-11-18 |
1989-08-22 |
Filmtec Corp. |
Novel polyamide reverse osmosis membranes
|
|
US4769148A
(en)
*
|
1987-11-18 |
1988-09-06 |
The Dow Chemical Company |
Novel polyamide reverse osmosis membranes
|
|
US5164475A
(en)
*
|
1989-01-31 |
1992-11-17 |
Du Pont Merck Pharmaceutical Company |
Porous substrates with a high concentration of amine groups
|
|
US7156997B2
(en)
*
|
2001-10-05 |
2007-01-02 |
Dow Global Technologies Inc. |
Package assembly for piperazine-based membranes
|
|
US8177978B2
(en)
|
2008-04-15 |
2012-05-15 |
Nanoh20, Inc. |
Reverse osmosis membranes
|
|
EP2448657B1
(en)
|
2009-06-29 |
2018-12-26 |
NanoH2O Inc. |
Improved hybrid tfc ro membranes with nitrogen additives
|
|
EP2637773B1
(en)
|
2010-11-10 |
2019-10-30 |
NanoH2O Inc. |
Improved hybrid tfc ro membranes with non-metallic additives
|
|
US9370747B2
(en)
|
2011-09-01 |
2016-06-21 |
New Mexico Tech Research Foundation |
Method and apparatus for reducing the total dissolved solids of a solution
|
|
US9861940B2
(en)
|
2015-08-31 |
2018-01-09 |
Lg Baboh2O, Inc. |
Additives for salt rejection enhancement of a membrane
|
|
US9737859B2
(en)
|
2016-01-11 |
2017-08-22 |
Lg Nanoh2O, Inc. |
Process for improved water flux through a TFC membrane
|
|
US10155203B2
(en)
|
2016-03-03 |
2018-12-18 |
Lg Nanoh2O, Inc. |
Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents
|