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1. (WO2010112427) PROCESS FOR THE PREPARATION OF EASILY DISPERSIBLE VIOLET PIGMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/112427    International Application No.:    PCT/EP2010/054020
Publication Date: 07.10.2010 International Filing Date: 26.03.2010
IPC:
C09B 19/00 (2006.01), C09B 67/04 (2006.01), C09B 67/22 (2006.01), G02B 5/22 (2006.01)
Applicants: SOLVAY SA [BE/BE]; Rue du Prince Albert, 33 B-1050 Brussels (BE) (For All Designated States Except US).
JUNG, Kisuck [KR/KR]; (KR) (For US Only).
HAN, Sangmin [KR/KR]; (KR) (For US Only).
KIM, Dongyoon [KR/KR]; (KR) (For US Only).
JEONG, Hyunsuk [KR/KR]; (KR) (For US Only).
LEE, Hyunsu [KR/KR]; (KR) (For US Only)
Inventors: JUNG, Kisuck; (KR).
HAN, Sangmin; (KR).
KIM, Dongyoon; (KR).
JEONG, Hyunsuk; (KR).
LEE, Hyunsu; (KR)
Agent: VANDE GUCHT, Anne; Rue de Ransbeek, 310 B-1120 Bruxelles (BE)
Priority Data:
09156870.9 31.03.2009 EP
Title (EN) PROCESS FOR THE PREPARATION OF EASILY DISPERSIBLE VIOLET PIGMENT
(FR) PROCÉDÉ DE PRÉPARATION DU PIGMENT VIOLET FACILEMENT DISPERSIBLE
Abstract: front page image
(EN)The surface of a base pigment is modified so as to have a specific functional group such as sulfonic acid or its derivative, in order to increase rheological and colouristic properties and flocculation stability of dioxazine pigments (e.g., Pigment Violet 23). By modifying a pigment surface and further kneading it, dispersibility and the efficiency (brightness) of a color filter are improved without any other adverse effects.
(FR)La présente invention porte sur un procédé de préparation du Pigment Violet facilement dispersible. La surface d'un pigment de base est modifiée de façon à avoir un groupe fonctionnel spécifique tel qu'acide sulfonique ou son dérivé, de façon à augmenter les propriétés rhéologiques et coloristiques et la stabilité de floculation des pigments de type dioxazine (par exemple, Pigment Violet 23). Par modification d'une surface de pigment puis malaxage de celui-ci, la dispersibilité et l'efficacité (brillance) d'un filtre coloré sont améliorées sans autres effets défavorables.
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, 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, 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)