Liquid purification or separation – Filter – Material
Reexamination Certificate
2007-06-05
2007-06-05
Fortuna, Ana (Department: 1723)
Liquid purification or separation
Filter
Material
C210S500420, C210S500270, C210S500230, C264S041000, C264S209100, C264S211160
Reexamination Certificate
active
10738628
ABSTRACT:
The invention relates to a terpolymer of tetrafluoroethylene (TFE) monomer, polyvinylidene fluoride (PVDF) monomer and hexafluoropropylene (HFP) monomer for forming an ultrafiltration or microfiltration membrane, method of forming said membranes, and to the ultrafiltration or microfiltration membranes themselves. The invention also relates to a method of forming a polymeric ultrafiltration or microfiltration membrane including preparing a leachant resistant membrane dope which incorporates a leachable pore forming agent, casting a membrane from the dope and leaching the pore forming agent from the membrane. The invention also relates to a method of preparing a polymeric ultrafiltration or microfiltration membrane of improved structure including the step of adding a nucleating agent to the membrane dope before casting.
REFERENCES:
patent: 3228876 (1966-01-01), Mahon
patent: 3625827 (1971-12-01), Wildi et al.
patent: 3693406 (1972-09-01), Tobin
patent: 3708071 (1973-01-01), Crowley
patent: 3876738 (1975-04-01), Marinaccio et al.
patent: 3968192 (1976-07-01), Hoffman et al.
patent: 3992301 (1976-11-01), Shippey et al.
patent: 3993816 (1976-11-01), Baudet et al.
patent: 4188817 (1980-02-01), Steigelmann
patent: 4192750 (1980-03-01), Elfes et al.
patent: 4193780 (1980-03-01), Cotton et al.
patent: 4203848 (1980-05-01), Grandine, II
patent: 4218324 (1980-08-01), Hartmann et al.
patent: 4230583 (1980-10-01), Chiolle et al.
patent: 4248648 (1981-02-01), Kopp
patent: 4302336 (1981-11-01), Kawaguchi et al.
patent: 4340479 (1982-07-01), Pall
patent: 4353802 (1982-10-01), Hara et al.
patent: 4384474 (1983-05-01), Kowalski
patent: 4385150 (1983-05-01), Miyake et al.
patent: 4388189 (1983-06-01), Kawaguchi et al.
patent: 4407975 (1983-10-01), Yamaguchi
patent: 4431545 (1984-02-01), Pall et al.
patent: 4451369 (1984-05-01), Sekino et al.
patent: 4511471 (1985-04-01), Müller
patent: 4540490 (1985-09-01), Shibata et al.
patent: 4547289 (1985-10-01), Okano et al.
patent: 4609465 (1986-09-01), Miller
patent: 4614109 (1986-09-01), Hoffman
patent: 4629563 (1986-12-01), Wrasidlo
patent: 4632745 (1986-12-01), Giuffrida et al.
patent: 4636296 (1987-01-01), Kunz
patent: 4642182 (1987-02-01), Drori
patent: 4647377 (1987-03-01), Miura
patent: 4650596 (1987-03-01), Schlueter et al.
patent: 4656865 (1987-04-01), Callan
patent: 4660411 (1987-04-01), Reid
patent: 4670145 (1987-06-01), Edwards
patent: 4673507 (1987-06-01), Brown
patent: 4687561 (1987-08-01), Kunz
patent: 4688511 (1987-08-01), Gerlach et al.
patent: 4702836 (1987-10-01), Mutoh et al.
patent: 4702840 (1987-10-01), Degen et al.
patent: 4708799 (1987-11-01), Gerlach et al.
patent: 4718270 (1988-01-01), Storr
patent: 4744240 (1988-05-01), Reichelt
patent: 4756875 (1988-07-01), Tajima et al.
patent: 4763612 (1988-08-01), Iwanami
patent: 4767539 (1988-08-01), Ford
patent: 4775471 (1988-10-01), Nagai et al.
patent: 4779448 (1988-10-01), Gogins
patent: 4784771 (1988-11-01), Wathen et al.
patent: 4793932 (1988-12-01), Ford et al.
patent: 4797187 (1989-01-01), Davis et al.
patent: 4797211 (1989-01-01), Ehrfeld et al.
patent: 4810384 (1989-03-01), Fabre
patent: 4812235 (1989-03-01), Seleman et al.
patent: 4816160 (1989-03-01), Ford et al.
patent: 4840227 (1989-06-01), Schmidt
patent: 4846970 (1989-07-01), Bertelsen et al.
patent: 4876006 (1989-10-01), Ohkubo et al.
patent: 4876012 (1989-10-01), Kopp et al.
patent: 4886601 (1989-12-01), Iwatsuka et al.
patent: 4888115 (1989-12-01), Marinaccio et al.
patent: 4904426 (1990-02-01), Lundgard et al.
patent: 4921610 (1990-05-01), Ford et al.
patent: 4931186 (1990-06-01), Ford et al.
patent: 4935143 (1990-06-01), Kopp et al.
patent: 4963304 (1990-10-01), Im et al.
patent: 4968430 (1990-11-01), Hildenbrand et al.
patent: 4968733 (1990-11-01), Muller et al.
patent: 4999038 (1991-03-01), Lundberg
patent: 5005430 (1991-04-01), Kibler et al.
patent: 5015275 (1991-05-01), Beck et al.
patent: 5024762 (1991-06-01), Ford et al.
patent: 5043113 (1991-08-01), Kafchinski et al.
patent: 5066375 (1991-11-01), Parsi et al.
patent: 5066401 (1991-11-01), Muller et al.
patent: 5066402 (1991-11-01), Anselme et al.
patent: 5069065 (1991-12-01), Sprunt et al.
patent: 5076925 (1991-12-01), Roesink et al.
patent: 5079272 (1992-01-01), Allegrezza et al.
patent: 5094750 (1992-03-01), Kopp et al.
patent: 5104535 (1992-04-01), Cote et al.
patent: 5104546 (1992-04-01), Filson et al.
patent: H1045 (1992-05-01), Wilson
patent: 5135663 (1992-08-01), Newberth et al.
patent: 5137631 (1992-08-01), Eckman et al.
patent: 5138870 (1992-08-01), Lyssy
patent: 5147553 (1992-09-01), Waite
patent: 5151191 (1992-09-01), Sunaoka et al.
patent: 5151193 (1992-09-01), Grobe et al.
patent: 5158721 (1992-10-01), Allegrezza et al.
patent: 5182019 (1993-01-01), Cote et al.
patent: 5192456 (1993-03-01), Ishida et al.
patent: 5194149 (1993-03-01), Selbie et al.
patent: 5198116 (1993-03-01), Comstock et al.
patent: 5198162 (1993-03-01), Park et al.
patent: 5209852 (1993-05-01), Sunaoka et al.
patent: 5211823 (1993-05-01), Giuffrida et al.
patent: 5221478 (1993-06-01), Dhingra et al.
patent: 5227063 (1993-07-01), Langerak et al.
patent: 5248424 (1993-09-01), Cote et al.
patent: 5275766 (1994-01-01), Gadkaree et al.
patent: 5286324 (1994-02-01), Kawai et al.
patent: 5297420 (1994-03-01), Gilliland et al.
patent: 5320760 (1994-06-01), Freund et al.
patent: 5353630 (1994-10-01), Soda et al.
patent: 5361625 (1994-11-01), Ylvisaker
patent: 5364527 (1994-11-01), Zimmerman et al.
patent: 5389260 (1995-02-01), Hemp
patent: 5401401 (1995-03-01), Hickok
patent: 5403479 (1995-04-01), Smith et al.
patent: 5405528 (1995-04-01), Selbie et al.
patent: 5411663 (1995-05-01), Johnson
patent: 5417101 (1995-05-01), Weich
patent: 5419816 (1995-05-01), Sampson et al.
patent: 5451317 (1995-09-01), Ishida et al.
patent: 5470469 (1995-11-01), Eckman
patent: 5477731 (1995-12-01), Mouton
patent: 5479590 (1995-12-01), Lin
patent: 5480553 (1996-01-01), Yamamori et al.
patent: 5484528 (1996-01-01), Yagi
patent: 5525220 (1996-06-01), Yagi
patent: 5531848 (1996-07-01), Brinda et al.
patent: 5531900 (1996-07-01), Raghaven et al.
patent: 5543002 (1996-08-01), Brinda et al.
patent: 5554283 (1996-09-01), Brinda et al.
patent: 5607593 (1997-03-01), Cote et al.
patent: 5639373 (1997-06-01), Mahendran et al.
patent: 5643455 (1997-07-01), Kopp et al.
patent: 5647988 (1997-07-01), Kawanishi et al.
patent: 5747605 (1998-05-01), Breant et al.
patent: D396046 (1998-07-01), Scheel et al.
patent: 5783083 (1998-07-01), Henshaw et al.
patent: D396726 (1998-08-01), Sadr et al.
patent: D400890 (1998-11-01), Gambardella
patent: 5906742 (1999-05-01), Wang et al.
patent: 5910250 (1999-06-01), Mahendran et al.
patent: 5914039 (1999-06-01), Mahendran
patent: 5918264 (1999-06-01), Drummond et al.
patent: 5942113 (1999-08-01), Morimura
patent: 5944997 (1999-08-01), Pedersen et al.
patent: 5958243 (1999-09-01), Lawrence et al.
patent: 5988400 (1999-11-01), Karachevtcev et al.
patent: 6024872 (2000-02-01), Mahendran
patent: 6039872 (2000-03-01), Wu et al.
patent: 6042677 (2000-03-01), Mahendran et al.
patent: 6045698 (2000-04-01), Cote et al.
patent: 6045899 (2000-04-01), Wang et al.
patent: 6048454 (2000-04-01), Jenkins
patent: 6074718 (2000-06-01), Puglia et al.
patent: 6077435 (2000-06-01), Beck et al.
patent: 6083393 (2000-07-01), Wu et al.
patent: 6096213 (2000-08-01), Radovanovic et al.
patent: 6146747 (2000-11-01), Wang et al.
patent: 6156200 (2000-12-01), Zha et al.
patent: 6159373 (2000-12-01), Beck et al.
patent: 6193890 (2001-02-01), Pedersen et al.
patent: 6202475 (2001-03-01), Selbie et al.
patent: 6214231 (2001-04-01), Cote et al.
patent: 6221247 (2001-04-01), Nemser et al.
patent: 6245239 (2001-06-01), Cote et al.
patent: 6254773 (2001-07-01), Biltoft
patent: 6264839 (2001-07-01), Mohr et al.
patent: 6277512 (2001-08-01), Hamrock et al.
patent: 6280626 (2001-08-01), Miyashita et al.
patent: 6284135 (2001-09-01), Ookata
patent: 6294039 (2001-09-01), Mahendran et al.
patent: 6299773 (2001-10-01), Takamura et al.
patent: 6315895 (2001-11-01), Summerton et al.
patent: 6322703 (2001-11-01), Taniguchi et al
Muller Heinz-Joachim
Mullette Daniel
Fortuna Ana
Siemens Water Technology Corp.
LandOfFree
Membrane polymer compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Membrane polymer compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane polymer compositions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3875357