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Machine translation
1. (WO2001031662) FERROFLUID COMPOSITION AND PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/031662    International Application No.:    PCT/IB2000/001666
Publication Date: 03.05.2001 International Filing Date: 27.10.2000
Chapter 2 Demand Filed:    09.05.2001    
IPC:
H01F 1/44 (2006.01)
Applicants: FERROTEC CORPORATION [JP/JP]; Sumitomo Bldg #6, 5-24-8 Higashi Ueno, Taito-ku, Tokyo 110-0015 (JP)
Inventors: BORDUZ, Lucian; (US).
HIROTA, Yasutake; (US).
TSUDA, Shiro; (JP)
Priority Data:
09/429,189 28.10.1999 US
Title (EN) FERROFLUID COMPOSITION AND PROCESS
(FR) COMPOSITION FERROFLUIDE ET PROCEDE ASSOCIE
Abstract: front page image
(EN)The invention relates to a composition and process for producing a chemically stable magnetic fluid comprising a plurality of magnetic particles covered first with a small molecular weight surface modifier, which is a nondispersant and acts as a surfactant-accepting layer, and then with at least one surfactant. The surface modifier/surfactant coated magnetic particles are then suspended in a silicone oil-based, hydrocarbon oil-based or an ester oil-based carrier liquid.
(FR)L'invention concerne une composition et un procédé conçus pour la production d'un fluide magnétique chimiquement stable consistant en une pluralité de particules magnétiques revêtues d'abord d'un modificateur superficiel de faible poids moléculaire non dispersant qui agit comme couche réceptrice de tensioactif, puis d'au moins un tensioactif. Les particules magnétiques revêtues de modificateur superficiel/ tensioactif sont ensuite suspendues dans un liquide porteur à base d'huile de silicium, d'hydrocarbure ou d'un ester.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
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)