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Machine translation
1. (WO2007006614) ALUMINIUM OXIDE DISPERSION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/006614    International Application No.:    PCT/EP2006/063047
Publication Date: 18.01.2007 International Filing Date: 09.06.2006
IPC:
C01F 7/02 (2006.01)
Applicants: EVONIK DEGUSSA GMBH [DE/DE]; Rellinghauser Strasse 1-11, 45128 Essen (DE) (For All Designated States Except US).
LORTZ, Wolfgang [DE/DE]; (DE) (For US Only).
BATZ-SOHN, Christoph [DE/DE]; (DE) (For US Only).
PERLET, Gabriele [DE/DE]; (DE) (For US Only).
LACH, Heinz [DE/DE]; (DE) (For US Only).
WILL, Werner [DE/DE]; (DE) (For US Only)
Inventors: LORTZ, Wolfgang; (DE).
BATZ-SOHN, Christoph; (DE).
PERLET, Gabriele; (DE).
LACH, Heinz; (DE).
WILL, Werner; (DE)
Common
Representative:
EVONIK DEGUSSA GMBH; S-IPM-PAT, Postcode 84/339, Rodenbacher Chaussee 4, 63457 Hanau (DE)
Priority Data:
10 2005 032 427.4 12.07.2005 DE
Title (EN) ALUMINIUM OXIDE DISPERSION
(FR) DISPERSION A BASE D'OXYDE D'ALUMINIUM
Abstract: front page image
(EN)Aluminium oxide dispersion, which is stable in a pH range 5 from 5 to 9 and has an aluminium oxide content of at least 40 wt.%, obtainable by dispersing pyrogenically produced aluminium oxide particles in an aqueous phase, wherein one or several at least dibasic hydroxycarboxylic acids present dissolved in the dispersion and at least one salt of a 10 dialkali metal hydrogen phosphate and/or alkali metal dihydrogen phosphate are added to the aqueous phase each mutually independently in a quantity of 0.3 - 3 x 10-6 mol/m2 of aluminium oxide specific surface area.
(FR)L'invention concerne une dispersion à base d'oxyde d'aluminium, stable dans un intervalle de pH compris entre 5 et 9, renfermant au moins 40 % en masse d'oxyde d'aluminium, obtenue selon un procédé consistant à disperser des particules d'oxyde d'aluminium produites par pyrogénation dans une phase aqueuse, un ou plusieurs acides hydroxycarboxyliques au moins dibasiques, présents dissous dans la dispersion, et au moins un sel d'un phosphate d'hydrogène de métal dialcalin et/ou de phosphate de dihydrogène de métal alcalin étant ajoutés à la phase aqueuse, indépendamment, selon une quantité correspondant à 0,3 à 3 x 10-6 mol/m2 sur la base de la surface spécifique de l'oxyde d'aluminium.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)