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1. (WO2010082990) ION EXCHANGE RESINS COMPRISING INTERPENETRATING POLYMER NETWORKS AND THEIR USE IN CHROMIUM REMOVAL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/082990 International Application No.: PCT/US2009/067410
Publication Date: 22.07.2010 International Filing Date: 10.12.2009
Chapter 2 Demand Filed: 11.05.2010
IPC:
C02F 1/42 (2006.01) ,C02F 101/22 (2006.01) ,C02F 1/66 (2006.01) ,C02F 103/06 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
42
by ion-exchange
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
101
Nature of the contaminant
10
Inorganic compounds
20
Heavy metals or heavy metal compounds
22
Chromium or chromium compounds, e.g. chromates
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
66
by neutralisation; pH adjustment
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
103
Nature of the water, waste water, sewage or sludge to be treated
06
Contaminated groundwater or leachate
Applicants:
DOW GLOBAL TECHNOLOGIES LLC. [US/US]; 2040 Dow Center Midland, MI 48674, US (AllExceptUS)
GISCH, Daryl [US/US]; US (UsOnly)
JIN, Jing [CN/US]; US (UsOnly)
Inventors:
GISCH, Daryl; US
JIN, Jing; US
Agent:
BLACK, Edward W.; The Dow Chemical Company Intellectual Property P. O. Box 1967 Midland, Michigan 48641-1967, US
Priority Data:
61/144,76115.01.2009US
61/152,34113.02.2009US
Title (EN) ION EXCHANGE RESINS COMPRISING INTERPENETRATING POLYMER NETWORKS AND THEIR USE IN CHROMIUM REMOVAL
(FR) RÉSINES ÉCHANGEUSES D'IONS COMPRENANT DES RÉSEAUX POLYMÈRES À INTERPÉNÉTRATION ET LEUR UTILISATION DANS LE RETRAIT DE CHROME
Abstract:
(EN) The invention includes ion exchange resins and their use in the removal of chromium from water. In one embodiment, the invention comprises a method for removing chromium from a water source by contacting the water with an ion exchange resin, wherein the ion exchange resin comprises particles of a crosslinked copolymer comprising: an interpenetrating polymer network (IPN) of at least two polymer components each having a styrenic content greater than 50 molar percent, and a quaternary ammonium functionality.
(FR) L'invention porte sur des résines échangeuses d'ions et sur leur utilisation dans le retrait de chrome à partir d'eau. Dans un mode de réalisation, l'invention comprend un procédé pour retirer du chrome à partir d'une source d'eau par mise en contact de l'eau avec une résine échangeuse d'ions, la résine échangeuse d'ions comprenant des particules d'un copolymère réticulé comprenant : un réseau polymère à interpénétration (IPN) d'au moins deux composants polymères ayant chacune une teneur en styrène supérieure à 50 pour cent en mole, et une fonction ammonium quaternaire.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2387549JP2012515083CN102282109BRPI0919985IN5108/CHENP/2011