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1. (WO2017065789) MODIFIED SODIUM BENTONITE CLAYS FOR BARRIER LAYER APPLICATIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/065789 International Application No.: PCT/US2015/055869
Publication Date: 20.04.2017 International Filing Date: 16.10.2015
IPC:
C04B 14/10 (2006.01) ,C04B 24/24 (2006.01) ,C04B 24/26 (2006.01) ,C04B 24/16 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
14
Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
02
Granular materials
04
Silica-rich materials; Silicates
10
Clay
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
24
Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
24
Macromolecular compounds
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
24
Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
24
Macromolecular compounds
26
obtained by reactions only involving carbon-to-carbon unsaturated bonds
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
24
Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
16
Sulfur-containing compounds
Applicants:
HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 N. Sam Houston Parkway E. Houston, Texas 77032-3219, US
Inventors:
MAY, Preston Andrew; US
COLLINS, Ryan Patrick; US
Agent:
KAISER, Iona; US
Priority Data:
Title (EN) MODIFIED SODIUM BENTONITE CLAYS FOR BARRIER LAYER APPLICATIONS
(FR) ARGILES DE BENTONITE DE SODIUM MODIFIÉES POUR APPLICATIONS DE COUCHES BARRIÈRES
Abstract:
(EN) The permeability of barrier layers formed from sodium bentonite clay may be significantly and unpredictably impacted upon contacting various ionic substances. Modifying agents may be admixed with sodium bentonite clay to lessen the impacts resulting from its contact with an ionic substance. Suitable modifying agents may comprise an anionic substance selected from the group consisting of a diutan, a polymer containing a 2-acrylamido-2-methylpropanesulfonic acid monomer, any salt thereof, and any combination thereof. Methods for forming a barrier layer may comprise: providing a barrier material comprising sodium bentonite clay and a modifying agent admixed with the sodium bentonite clay, the modifying agent comprising an anionic substance selected from the group consisting of a diutan, a polymer containing a 2-acrylamido-2-methylpropanesulfonic acid monomer, any salt thereof, and any combination thereof; and forming a barrier layer comprising the barrier material.
(FR) La perméabilité de couches barrières formées à partir d'argile de bentonite de sodium peut être modifiée significativement et contre toute attente lors de la mise en contact de ladite argile avec diverses substances ioniques. Des agents de modification peuvent être mélangés avec l'argile de bentonite de sodium pour réduire les chocs résultant de sa mise en contact avec une substance ionique. Les agents de modification appropriés peuvent comprendre une substance anionique choisie dans le groupe constitué par un diutane, un polymère contenant un monomère d'acide 2-acrylamido-2-méthylpropanesulfonique, un sel quelconque de celui-ci, et une combinaison quelconque de ceux-ci. L'invention concerne également des procédés pour la formation d'une couche barrière qui peuvent consister à : utiliser un matériau barrière comprenant de l'argile de bentonite de sodium et un agent de modification mélangé à l'argile de bentonite de sodium, ledit agent de modification comprenant une substance anionique choisie dans le groupe constitué par un diutane, un polymère contenant un monomère d'acide 2-acrylamido-2-méthylpropanesulfonique, un sel quelconque de celui-ci, et une combinaison quelconque de ceux-ci ; et former une couche barrière comprenant le matériau barrière.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)