公开(公告)号：US20170158981A1

公开(公告)日：2017-06-08

申请号：US15352017

申请日：2016-11-15

Applicant: ExxonMobil Research and Engineering Company

Inventor： Liehpao Oscar Farng ,  John T. Fogarty ,  David G.L. Holt ,  Susan C. Ardito ,  Andrew G. Horodysky

IPC: C10M135/10 ,  C10M125/24 ,  C23F11/04 ,  C10M107/48

CPC classification number: C10M135/10 ,  C10M107/48 ,  C10M125/24 ,  C10M169/04 ,  C10M2201/081 ,  C10M2201/085 ,  C10M2201/087 ,  C10M2219/044 ,  C10M2223/0405 ,  C10M2223/0415 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/05 ,  C10N2230/00 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/18 ,  C10N2240/08 ,  C23F11/04

Abstract: A functional fluid composition containing a fluid base stock (e.g., a phosphate ester fluid base stock) as a major component, and an erosion inhibitor mixture as a minor component. The erosion inhibitor mixture contains at least a first erosion inhibitor (e.g., a perhalometallate or perhalometalloidate salt) and a second erosion inhibitor (e.g., an alkali metal salt of perfluoroalkyl sulfonic acid). Erosion inhibition of the functional fluid composition is improved as compared to erosion inhibition achieved using singly the first erosion inhibitor or the second erosion inhibitor, as measured by one or more of ASTM D2624, ASTM D974, ASTM D130 and ASTM D6304. A method for operating and lubricating a hydraulic system by utilizing as a hydraulic fluid, the functional fluid composition. A method for identifying erosion inhibition effectiveness of the functional fluid. The functional fluids are useful as aircraft hydraulic fluids.

公开(公告)号：US20180179463A1

公开(公告)日：2018-06-28

申请号：US15841537

申请日：2017-12-14

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael R. Douglass ,  Beth A. Fitch ,  Susan C. Ardito ,  Douglas E. Johnson

IPC: C10M105/38 ,  C10M169/04

CPC classification number: C10M105/38 ,  C07C69/33 ,  C10M169/04 ,  C10M169/042 ,  C10M2203/1025 ,  C10M2205/0285 ,  C10M2207/2825 ,  C10M2207/2835 ,  C10M2209/1033 ,  C10M2211/0445 ,  C10M2223/0405 ,  C10M2229/025 ,  C10N2220/022 ,  C10N2220/027 ,  C10N2230/02 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/74 ,  C10N2240/121 ,  C10N2270/00

Abstract: Provided is a polyol ester base stock composition with reduced odor and volatility. The polyol ester back stock composition does not include C5 acid. More particularly, the polyol ester base stock includes the reaction product of: (a) a polyol represented by the formula R(OH)n wherein R is an aliphatic or a cyclo-aliphatic hydrocarbyl group and n is at least 2, and (b) a mixture of monocarboxylic acids comprising at least one linear acid selected from the group consisting of between C6 to C10 acids and at least one branched C6 acid, wherein the amount of C6 to C10 acids is at least 55 wt. % and the amount of the at least one branched C6 acid is 45 wt. % or less, based upon the total amount of said mixture of monocarboxylic acids. The polyol ester base stock is particularly suited for aviation turbine oils.