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1. (WO2001034711) PROCESSES FOR PREPARING HYDROPHOBIC INORGANIC OXIDE PIGMENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/034711 International Application No.: PCT/US2000/030713
Publication Date: 17.05.2001 International Filing Date: 10.11.2000
Chapter 2 Demand Filed: 12.06.2001
IPC:
C09C 1/36 (2006.01) ,C09C 3/12 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
1
Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
36
Compounds of titanium
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
3
Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
12
Treatment with organosilicon compounds
Applicants: KOSTELNIK, Robert, J.[US/US]; US (UsOnly)
WEBER, Leon[US/US]; US (UsOnly)
EL-SHOUBARY, Modasser[--/US]; US (UsOnly)
MILLENNIUM INORGANIC CHEMICALS, INC.[US/US]; Suite 5000 200 International Circle Hunt Valley, MD 21030, US (AllExceptUS)
Inventors: KOSTELNIK, Robert, J.; US
WEBER, Leon; US
EL-SHOUBARY, Modasser; US
Agent: KALOW, David, A. ; Kalow & Springut LLP 19th floor 488 Madison Avenue New York, NY 10022, US
SANTALONE, John, J.; Kalow & Springut LLP 19th floor 488 Madison Avenue New York, NY 10022, US
Priority Data:
60/165,36212.11.1999US
Title (EN) PROCESSES FOR PREPARING HYDROPHOBIC INORGANIC OXIDE PIGMENTS
(FR) PROCEDES DE PREPARATION DE PIGMENTS D'OXYDE HYDROPHOBE INORGANIQUE
Abstract:
(EN) The present invention provides a treatment method for rendering inorganic oxide particles, such as TiO2 pigment, hydrophobic by predispersing a suitably reactive organohalosilane into an aqueous media, using intensive mixing means (such as a rotor stator emulsifier or inline static mixer) to form a reactive dispersion. When this dispersion is combined with inorganic oxide particles, such as TiO2 pigment, under sufficient agitation, a hydrophobic inorganic oxide can be formed. The oxides formed by the present invention have good mechanical properties, such as dispersibility in nonpolar substance (i.e., plastics), and they do not degrade physical properties of the pigmented nonpolar substance, such as lacing resistance of thermoplastics.
(FR) L'invention concerne un traitement destiné à rendre hydrophobes des particules d'oxyde inorganique, tel qu'un pigment TiO2, en prédispersant un organohalosilane réagissant de manière adéquate dans un milieu aqueux par l'intermédiaire de moyens de mélange intensif (notamment un émulsionneur muni d'un rotor-stator ou un mélangeur statique en ligne) de manière à obtenir une dispersion réactive. Lorsque cette dernière est combinée, sous l'effet d'une agitation suffisante, à des particules d'oxyde inorganique, telles qu'un pigment TiO2, on peut obtenir un oxyde inorganique hydrophobe. Les oxydes ainsi obtenus présentent de bonnes propriétés mécaniques, notamment leur capacité de dispersion dans les substances non polaires (les plastiques, par exemple), et n'affectent pas les propriétés physiques de la substance non polaire pigmentée, telle que la résistance à la formation de porosités des thermoplastiques.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)