Mineral oils: processes and products – Products and compositions – Lubricating oils
Reexamination Certificate
2006-12-05
2006-12-05
Nguyen, Tam M. (Department: 1764)
Mineral oils: processes and products
Products and compositions
Lubricating oils
C208S019000, C585S001000, C585S002000
Reexamination Certificate
active
07144497
ABSTRACT:
A process for producing a lubricating base oil blend which comprises (a) recovering a Fischer-Tropsch derived distillate fraction characterized by a kinematic viscosity of about 2 cSt or greater but less than 3 cSt at 100 degrees C.; and (b) blending the Fischer-Tropsch derived distillate fraction with a petroleum derived base oil selected from the group consisting of a Group I base oil, a Group II base oil, a Group III base oil, and a mixture of two or more of any of the foregoing conventional base oils in the proper proportion to produce a lubricating base oil blend characterized as having a viscosity of about 3 or greater; also the base oil blends, finished lubricants, and their use in internal combustion engines.
REFERENCES:
patent: 2668790 (1954-02-01), Good et al.
patent: 2668866 (1954-02-01), Good et al.
patent: 4812246 (1989-03-01), Yabe
patent: 4906350 (1990-03-01), Lucien et al.
patent: 5135638 (1992-08-01), Miller
patent: 6008164 (1999-12-01), Aldrich et al.
patent: 6059955 (2000-05-01), Cody et al.
patent: 6080301 (2000-06-01), Berlowitz et al.
patent: 6090989 (2000-07-01), Trewella et al.
patent: 6096940 (2000-08-01), Wittenbrink et al.
patent: 6165949 (2000-12-01), Berlowitz et al.
patent: 6332974 (2001-12-01), Wittenbrink et al.
patent: 6392109 (2002-05-01), O'Rear et al.
patent: 6475960 (2002-11-01), Berlowitz et al.
patent: 6627779 (2003-09-01), O'Rear
patent: 0 515 256 (1997-03-01), None
patent: 0 776 959 (1997-06-01), None
patent: 63309592 A 19881216 (1988-12-01), None
patent: 10053788 A 19980224 (1998-02-01), None
patent: WO 93/14049 (1993-07-01), None
patent: WO 99/41335 (1999-08-01), None
patent: WO 00/08115 (2000-02-01), None
patent: WO 00/14179 (2000-03-01), None
patent: WO 00/14187 (2000-03-01), None
patent: WO 01/57166 (2001-08-01), None
patent: WO 02/070629 (2002-09-01), None
patent: WO 2004/003113 (2004-01-01), None
“Platforming of Paraffin Wax”, Journal of the Institute of Petroleum, 1956, vol. 43, pp. 205-216 by Schenk et al., University of Chemical Engineering, Delft.
“Hydro-Isomerization of Paraffin Wax”, Journal of the Institute of Petroleum, vol. 43, No. 407, pp. 297-306, Nov. 1957 by Breimer et al., University of Chemical Engineering, Delft, Holland.
Kramer David
Lok Brent K.
Pudlak Joseph
Rosenbaum John M.
Chevron U.S.A. Inc.
Nguyen Tam M.
Roth Steven H.
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