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1. (WO2018019710) PROCESS FOR PREPARING SURFACE-REACTED CALCIUM CARBONATE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/019710    International Application No.:    PCT/EP2017/068449
Publication Date: 01.02.2018 International Filing Date: 21.07.2017
IPC:
C09C 1/02 (2006.01)
Applicants: OMYA INTERNATIONAL AG [CH/CH]; Baslerstrasse 42 4665 Oftringen (CH)
Inventors: GERARD, Daniel E.; (CH).
GANE, Patrick A.C.; (CH).
SCHOELKOPF, Joachim; (CH)
Agent: GLAS, Holger; (DE)
Priority Data:
16181094.0 25.07.2016 EP
Title (EN) PROCESS FOR PREPARING SURFACE-REACTED CALCIUM CARBONATE
(FR) PROCÉDÉ DE PRÉPARATION DE CARBONATE DE CALCIUM AYANT RÉAGI EN SURFACE
Abstract: front page image
(EN)The present invention relates to a process for producing surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with phosphoric acid, carbon dioxide, and specific dicarboxylic acids, in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate. Furthermore, the present invention relates to surface -reacted calcium carbonate obtained by said process and its use.
(FR)La présente invention concerne un procédé permettant de produire du carbonate de calcium ayant réagi en surface, dans lequel un matériau contenant du carbonate de calcium est traité avec de l'acide phosphorique, du dioxyde de carbone et des acides dicarboxyliques spécifiques dans un milieu aqueux pour former une suspension aqueuse de carbonate de calcium ayant réagi en surface. La présente invention concerne en outre du carbonate de calcium ayant réagi en surface obtenu par ledit procédé, et son utilisation.
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)