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1. (WO2004031330) CONTINUOUSLY VARIABLE TRANSMISSION FLUID AND METHOD OF MAKING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/031330    International Application No.:    PCT/US2003/030058
Publication Date: 15.04.2004 International Filing Date: 24.09.2003
Chapter 2 Demand Filed:    27.04.2004    
IPC:
C10M 111/02 (2006.01), C10M 111/04 (2006.01), C10M 169/04 (2006.01)
Applicants: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. [NL/NL]; Carel van Bylandtlaan 30, NL-2596 HR THE HAGUE (NL) (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW only).
CHIU, I-Ching [US/US]; (US) (For US Only)
Inventors: CHIU, I-Ching; (US)
Agent: IWATA, Yukiko; Shell Oil Company, One Shell Plaza, P.O. Box 2463, Houston, TX 77252-2463 (US)
Priority Data:
60/414,894 30.09.2002 US
Title (EN) CONTINUOUSLY VARIABLE TRANSMISSION FLUID AND METHOD OF MAKING SAME
(FR) FLUIDE DE TRANSMISSION A VARIATION CONTINUE ET PROCEDE DE FABRICATION
Abstract: front page image
(EN)A continuously variable transmission fluid comprising a hydrogenated cyclic dimer of alpha-alkyl styrene and a low temperature viscosity control agent. The fluid does not contain more than 20 wt. % of a linear dimer of the alpha-alkyl styrene, and the fluid has a kinematic viscosity of greater than about 2.5x10-6 m2/s at 100 °C. The dimerized alpha-alkyl styrene can be made by (a) contacting an alpha-alkyl styrene with a supported acid catalyst to effect oligomerization of the alpha-alkyl styrene to a cyclic dimer of the alpha-alkyl styrene; and (b) hydrogenating the cyclic dimer in the presence of a hydrogenation catalyst to produce a fully hydrogenated cyclic dimer, wherein the alpha-alkyl styrene is contacted with the supported acid catalyst in the absence of a solvent for the alpha-alkyl styrene and a free acid.
(FR)L'invention concerne un fluide à variation continue comprenant un dimère cyclique hydrogéné de styrène alpha-alkyle et un agent de régulation de la viscosité à basse température. Le fluide ne contient pas plus de 20 % en poids d'un dimère linéaire de styrène alpha-alkyle, et présente une viscosité cinématique supérieure à environ 2,5x10-6 m2/s à 100 °C. Le styrène alpha-alkyle dimérisé peut être obtenu par (a) mise en contact d'un styrène alpha-alkyle avec un catalyseur acide supporté pour oligomériser le styrène alpha-alkyle en dimère cyclique du styrène alpha-alkyle; et (b) par hydrogénation du dimère cyclique en présence d'un catalyseur d'hydrogénation afin d'obtenir un dimère cyclique entièrement hydrogéné, le styrène alpha-alkyle étant mis en contact avec le catalyseur acide supporté en l'absence d'un solvant pour le styrène alpha-alkyle, et un acide libre.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, 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, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IT, LU, MC, NL, 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)