Automatic transmission fluids of improved viscometric properties

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

508559, 508293, 508295, 508554, 508469, 508192, C10M17102, C10M17104, C10M11904

Patent

active

056417330

ABSTRACT:
This invention provides compositions and methods for producing partial synthetic automatic transmission fluids capable of improved viscometric properties and capable of achieving -40.degree. C. Brookfield viscosities not greater than 15,000 centipoise.

REFERENCES:
patent: 4031020 (1977-06-01), Sugiura et al.
patent: 4218330 (1980-08-01), Shubkin
patent: 4299714 (1981-11-01), Sugiura et al.
patent: 4532062 (1985-07-01), Ryer et al.
patent: 4762628 (1988-08-01), Phillips et al.
patent: 4776967 (1988-10-01), Ichihashi et al.
patent: 4827073 (1989-05-01), Wu
patent: 4853139 (1989-08-01), Ichihashi
patent: 4857214 (1989-08-01), Papay et al.
patent: 4857220 (1989-08-01), Hashimoto
patent: 5089156 (1992-02-01), Chrisope et al.
patent: 5372735 (1994-12-01), Ohtani et al.
patent: 5387346 (1995-02-01), Hartley et al.
patent: 5578236 (1996-11-01), Srinivasan et al.
Beimesch, B. J. et al., "Viscosity and Volatility Characteristics of Some Model SAE 5W-30 Engine Oil Formulations", Journal of the American Society of Lubrication Engineering, vol. 42, 1, Jan., 1986, pp. 24-30.
Blackwell, J. V. et al., "Current and Future Polyalphaolefins" Journal of Synthetic Lubricants 7-1, pp. 25-45.
Campen, M. et al. "Lubes for the Future", Hydrocarbon Processing, Feb. 1982, pp. 75-82.
Lalla, C. J. et al., "Worldwide Perspective on Automatic Transmission Fluid", National Petroleum Refiners Association, 1988 NPRA Fuels & Lubricants Conference, Nov. 3-4, 1988.
Chrisope, D. R. et al. "Automatic Transmission Fluids"(Chapter 16), Synthetic Lubricants and High-Performance Functional Fluids, pp. 351-364, Copyright 1993 by Marcel Dekker, Inc.
Davis, J. E. "Oxidation Characteristics of Some Engine Oil Formulations Containing Petroleum and Synthetic Basestocks", Journal of the American Society of Lubrication Engineers, Mar. 1987, vol. 43, 3, pp. 199-202.
Graham, R. et al. "Automatic Transmission Fluid Developments Toward Rationalization" CEC International Symposium on Performance Evaluation of Automatic Fuels & Lubricants, Wolfsburg, W. Germany, Jun. 5-7, 1985, pp. 45-62.
Hamilton, Gordon D.S. et al. "Development of Automatic Transmission Fluids Having Excellent Low Temperature Viscometric and High Temperature Oxidative Properties" SAE #902145, Oct. 22-25, 1990, pp. 887-913.
Hartley, Rolfe J. et al. "The Design of Automatic Transmission Fluid to Meet the Requirements of Electronically Controlled Transmissions" SAE Technical Paper Series #902151, Oct. 22-25, 1990, pp. 1-9.
Hobson, D. E. "Axle Efficiency--Test Procedures And Results", presented at SAE's Passenger Car Meeting, Jun. 1979, pp. 202-209.
Kemp, Steven P. et al "Physical and Chemical Properties of a Typical Automatic Transmission Fluid" SAE Technical Paper Series #902148, Oct. 22-25, 1990, pp. 1-11.
Linden, James L. et al "Improving Transaxle Performance at Low Temperature with Reduced-Viscosity Automatic Transmission Fluids", SAE Paper #870356, 1987, pp. 7.21-7.30.
Ovlatt, W. R. et al. "Future Automatic Transmission Fluids--Performance Requirements", Fuels and Lubricants Conference, SAE Paper #865167 (1986).
Papay, A. G. et al., "Advanced Fuel Economy Engine Oils", Synthetic Automotive Engine Oils Progress in Technology Series 22, SAE (1981) pp. 237-248.
Shubkin, R. L. "Polyalphaolefins: Meeting The Challenge For High-Performance Lubrication", Journal of the Society of Tribologists and Lubrication Engineers, Mar., 1994, pp. 196-201.
Sprys, Joseph W. et al., "Shear Viscosities of Automatic Transmission Fluids" SAE Technical Paper Series #941885, Oct. 17-20, 1994, pp. 1-11.
van der Waal, G. Bert "Properties and Application of Ester Base Fluids and P.A.O.'s", vol. LIII, No. 8, NLGI Spokesman, Nov. 1989, pp. 359-368.
Watts, R.F. "Service Fill Automatic Transmission Fluid For the North American Market", 1991 NPRA, National Fuels and Lubricants Meeting, Houston, Texas, Nov. 708, 1991, pp. 1-8.
Willermet, P. A. et al., "A Laboratory Evaluation of Partial Synthetic Automatic Transmission Fluids", Journal of Synthetic Lubricants, 2(1), pp. 23-28 (1985).
"Formulating Broadly Cross-graded Lubricants With a High VI Polyalphaolefin", Practical Lubrication & Maintenance.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Automatic transmission fluids of improved viscometric properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic transmission fluids of improved viscometric properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic transmission fluids of improved viscometric properties will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-149062

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.