Process oil and process for producing the same

Details Process oil and process for producing the same Process oil and process for producing the same

2002-09-30

2009-10-13

McAvoy, Ellen M (Department: 1797)

Mineral oils: processes and products

Products and compositions

Lubricating oils

C208S309000, C208S314000, C208S322000, C524S484000, C585S001000, C585S013000

Reexamination Certificate

active

07601253

ABSTRACT:
A process oil comprising a 95/5 to 5/95 by weight mixture of: an extract having a DMSO extractable content less than 3 wt % obtained by solvent-extracting an oil obtained by deasphalting a vacuum distillation bottom; and either a mineral oil base having a DMSO extractable content less than 3 wt % which is a raffinate obtained by the solvent refining of a vacuum distillate or a mineral oil base having a DMSO extractable content less than 3 wt % obtained by subjecting a raffinate obtained by the solvent refining of a vacuum distillate to hydrorefining and/or dewaxing. The process oil has a kinematic viscosity at 100° C. of less than 32 mm2/s, % CA of 15 to 30, aniline point of 100° C. or lower, weight change through evaporation of 0.5% or less, and mutagenicity index of less than 1.

REFERENCES:
patent: 4399252 (1983-08-01), Cunningham
patent: 5488193 (1996-01-01), Mackerer et al.
patent: 5935417 (1999-08-01), Cody et al.
patent: 6103808 (2000-08-01), Hashimoto
patent: 6146520 (2000-11-01), Gupte et al.
patent: 6248929 (2001-06-01), Kaimai et al.
patent: 6399697 (2002-06-01), Takasaki et al.
patent: 6605695 (2003-08-01), Takasaki et al.
patent: 6878263 (2005-04-01), Kaimai et al.
patent: 6974535 (2005-12-01), Cody et al.
patent: 0 933 418 (1999-08-01), None
patent: 0 950 703 (1999-10-01), None
patent: 11-80434 (1989-07-01), None
patent: 11-246709 (1999-09-01), None

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