Source: http://www.google.com/patents/US8057574?dq=6,460,050
Timestamp: 2016-02-11 12:02:14
Document Index: 156188104

Matched Legal Cases: ['Application No. 2003903507', 'Application No. 2006261581', 'Application No. 2', 'Application No. 200680022006', 'Application No. 2006', 'Application No. 04737543', 'Application No. 0229019', 'Application No. 0575700', 'Application No. 2008', 'Application No. 2008', 'Application No. 563980', 'Application No. 563980']

Patent US8057574 - Membrane post treatment - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsThe invention relates to polymeric ultrafiltration or microfiltration membranes of, for instance, Halar, PVDF or PP, incorporating PVME or vinyl methyl ether monomers. The PVME may be present as a coating on the membrane or dispersed throughout the membrane or both. The membranes are preferably hydrophilic...http://www.google.com/patents/US8057574?utm_source=gb-gplus-sharePatent US8057574 - Membrane post treatmentAdvanced Patent SearchPublication numberUS8057574 B2Publication typeGrantApplication numberUS 12/647,734Publication dateNov 15, 2011Filing dateDec 28, 2009Priority dateJul 8, 2003Fee statusPaidAlso published asCA2530805A1, CA2530805C, CN1819867A, CN1819867B, EP1654053A1, EP1654053A4, EP1654053B1, EP1654053B8, US7662212, US8262778, US20060157404, US20100213117, US20110290717, WO2005002712A1Publication number12647734, 647734, US 8057574 B2, US 8057574B2, US-B2-8057574, US8057574 B2, US8057574B2InventorsDaniel Mullette, Joachim Muller, Neeta PatelOriginal AssigneeSiemens Industry, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (443), Non-Patent Citations (47), Classifications (51), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetMembrane post treatment
US 8057574 B2Abstract
This application is a continuation of and claims priority to U.S. nonprovisional patent application Ser. No. 10/564,024 filed on Jan. 9, 2006, issued as U.S. Pat. No. 7,662,212 B2 on Feb. 16, 2010 titled MEMBRANE POST TREATMENT which is a U.S. national stage application and claims the benefit under 35 U.S.C. �371 of International Application No. PCT/AU2004/000922 filed on Jul. 8, 2004, entitled titled MEMBRANE POST TREATMENT, which is based on Australian Patent Application No. 2003903507 filed on Jul. 8, 2003, entitled MEMBRANE POST TREATMENT, each of which is entirely incorporated herein by reference for all purposes, and to which this application claims the benefit of priority.
The present applicants have found that, in certain cases. Poly(VinylMethylEther) (PVME) can be used to modify, and in particular, reduce, the hydrophobicity of certain hydrophobic membranes. The PVME can be incorporated either by means of post-treatment, such as by soaking hollow-fibre membranes in a solution of PVME, or by incorporating PVME into the dope solution for forming the membrane. Either approach could be demonstrated for a variety of reaction types, including different types of membranes such as Poly(vinylidene fluoride) (PVDF). Poly(ethylene-chlorotrifluoroethylene) sold under the trademark HALAR and Poly(propylene) (PP).
The post-treatment of a variety of membranes with a cross-linkable hydrophilising agent was investigated, PVDF, Poly(ethylene-chlorotrifluoroethylene) (sold under the trademark HALAR) and PP membranes were all tested. For the Poly(ethylene-chlorotrifluoroethylene) (sold under the trademark HALAR) membranes, both MF (microfiltration) and UF (ultrafiltration) membranes were tested.
PVDF—Wicking and Permeability results
PP—Wicking and Permeability results
trademark HALAR)—Wicking and Permeability results
Ethanol washed Blank—
1 wt % PVME in Ethanol—
1 wt % PVME in Water—
Dry Blank—
Solef 1015—
GTA—
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Res. vol. 31, No. 3, 1997, pp. 489-494.44White et al., The Chemical Engineering Journal, 52 (1993), pp. 73-77.45Written Opinion of the International Searching Authority dated Feb. 7, 2006 for Application No. PCT/AU2005/001820.46Written Opinion of the International Searching Authority dated Jul. 7, 2006 for Application No. PCT/AU2006/000864.47Zenon, "Proposal for ZeeWeed� Membrane Filtration Equipment System for the City of Westminster, Colorado, Proposal No. 479-99," Mar. 2000, entire publication.Classifications U.S. Classification95/45, 55/DIG.5, 427/244, 210/640, 210/500.28, 96/14, 427/430.1, 96/54, 96/11, 427/331, 96/13, 96/4, 210/651, 210/500.27, 55/524, 210/490, 210/650, 427/245, 210/500.42International ClassificationB01D71/34, B01D39/20, B01D71/32, B01D71/82, B01D71/26, B01D69/14, B01D71/38, B01D67/00, B01D53/22Cooperative ClassificationY10S55/05, B01D2323/30, B01D2323/283, B01D2323/02, B01D71/26, B01D71/34, B01D71/32, B01D2323/34, B01D67/0088, B01D69/02, B01D2323/10, B01D67/009, B01D2323/12, B01D67/0011, B01D67/0018European ClassificationB01D71/32, B01D71/26, B01D67/00R16, B01D67/00R14, B01D69/14B, B01D67/00K14B, B01D71/34, B01D69/02Legal EventsDateCodeEventDescriptionApr 12, 2011ASAssignmentOwner name: SIEMENS WATER TECHNOLOGIES HOLDING CORP., PENNSYLVFree format text: MERGER;ASSIGNOR:SIEMENS WATER TECHNOLOGIES CORP.;REEL/FRAME:026111/0973Effective date: 20110401Apr 15, 2011ASAssignmentOwner name: SIEMENS INDUSTRY, INC., GEORGIAFree format text: MERGER;ASSIGNOR:SIEMENS WATER TECHNOLOGIES HOLDING CORP.;REEL/FRAME:026138/0605Effective date: 20110401Jan 1, 2014ASAssignmentOwner name: SIEMENS WATER TECHNOLOGIES LLC, GEORGIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS INDUSTRY, INC.;REEL/FRAME:031896/0256Effective date: 20130731Jan 24, 2014ASAssignmentOwner name: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATFree format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN);ASSIGNORS:WTG HOLDINGS III CORP.;WTG HOLDINGSII CORP.;SIEMENS TREATED WATER OUTSOURCING CORP.;AND OTHERS;REEL/FRAME:032126/0487Effective date: 20140115Owner name: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATFree format text: INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN);ASSIGNORS:WTG HOLDINGS III CORP.;WTG HOLDINGS II CORP.;SIEMENS TREATED WATER OUTSOURCING CORP.;AND OTHERS;REEL/FRAME:032126/0430Effective date: 20140115Feb 7, 2014ASAssignmentOwner name: EVOQUA WATER TECHNOLOGIES LLC, GEORGIAFree format text: CHANGE OF NAME;ASSIGNOR:SIEMENS WATER TECHNOLOGIES LLC;REEL/FRAME:032174/0282Effective date: 20140116Apr 24, 2015FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services