A novel lubricant composition is disclosed. In one embodiment the lubricant composition comprises in admixture: a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity a
A novel lubricant composition is disclosed. In one embodiment the lubricant composition comprises in admixture: a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt); and a second base stock component comprising one or more base stocks each having a viscosity less than 10 cSt, Kv100° C.
대표청구항▼
1. A method of improving the air release time of an SAE grade 75W-85 or 75W-90 automotive gear oil composition comprising: a) obtaining a first base stock component comprising one or more base stocks each having having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MW
1. A method of improving the air release time of an SAE grade 75W-85 or 75W-90 automotive gear oil composition comprising: a) obtaining a first base stock component comprising one or more base stocks each having having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt), wherein the first base stock comprises one or more metallocene catalyzed copolymer PAOs made from at least two linear alpha-olefins of C3to C30range with essentially no ethylene present in the copolymer mPAO composition, a second base stock component comprising one or more base stocks each having a viscosity less than 10 cSt, Kv100° C., and one or more additives with the proviso that the second base stock does not include a copolymer made from ethylene with one or more alpha olefins; andb) admixing the first base stock component in the amount of 10 to 65 wt % of the gear oil composition, the second base stock component in the amount of 20 to 85 wt % of the gear oil composition, and the one or more additives, to form an SAE grade 75W-85 or 75W-90 automotive gear oil composition;wherein the gear oil composition provides lower air release time to 0.2 volume % air as measured by ASTM D3427 at 50° C., when compared to a composition of substantially the same kinematic viscosity at 100° C. and containing the same second base stock component and the same one or more additives, but which contains a conventional PIB viscosity modifier in place of the first base stock component, in an amount adjusted along with the second base stock component to achieve the substantially the same kinematic viscosity at 100° C. 2. The method of claim 1, wherein the air release time to 0.2 volume % air as measured by ASTM D3427 at 50° C., is less than 10 minutes. 3. The method of claim 1, wherein the air release time to 0.2 volume % air, as measured by ASTM D3427 at 50° C., of the gear oil composition is further improved by using a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt and less than 150 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt), when compared to a gear oil composition of substantially the same kinematic viscosity at 100° C. and containing the same second base stock component and the same one or more additives, but which contains a first base stock component comprising one or more base stocks each having a viscosity of 150 cSt or greater, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt), in an amount adjusted along with the second base stock component to achieve substantially the same kinematic viscosity at 100° C. 4. The method of claim 1, wherein the foam collapse rate, as measured by ASTM D892, Sequence 2, of the gear oil composition is improved by using a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt and less than 150 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100 ° C. in cSt), when compared to a gear oil composition of substantially the same kinematic viscosity at 100° C. and containing the same second base stock component and the same one or more additives, but which contains a first base stock component comprising one or more base stocks each having a viscosity of 150 cSt or greater, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt), in an amount adjusted along with the second base stock component to achieve substantially the same kinematic viscosity at 100° C. 5. The method of claim 1, wherein the foam collapse rate of the gear oil composition is greater than 350 mL/minute, as measured by ASTM D892, Sequence 2.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (99)
Winter Andreas (Kelkheim DEX) Antberg Martin (Hofheim am Taunus DEX) Rohrmann Jrgen (Neufahrn DEX), 1-Olefin polymer wax, and a process for the preparation thereof.
Beach David L. (Kingwood TX) Bercik Paul G. (Kingwood TX) Morganson Neal E. (Novato CA), Alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same.
Winter Andreas (Kelkheim DEX) Dolle Volker (Kelkheim DEX) Rohrmann Jurgen (Neufahrn DEX) Spaleck Walter (Liederbach DEX), Compound useful for the preparation of a 1-olefin polymer.
Rossi Albert ; Rea Salvatore ; Stanat Jon Edmond ; Wright Linda Kay ; Kaufman Kenneth Lee ; Margo Harold Wilbur ; Frederick Jeffery William ; Koros Robert Martin, Dilute process for the polymerization of ethylene/.alpha.-olefin copolymer using metallocene catalyst systems.
Rossi Albert ; Rea Salvatore ; Stanat Jon E. ; Wright Linda K. ; Kaufman Kenneth L. ; Frederick Jeffrey W. ; Koros Robert Martin ; Margo Harold Wilbur, Dilute process for the polymerization of non-ethylene .alpha.-olefin homopolymers and copolymers using metallocene catal.
Gutierrez Antonio (Mercerville NJ) Song Won R. (Short Hills NJ) Lundberg Robert D. (Bridgewater NJ) Kleist Robert A. (Bayonne NJ), Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives.
Deckman, Douglas E.; Winemiller, Mark D.; Maxwell, William L.; Baillargeon, David J.; Yang, Norman; Goze, Maria Caridad B., Functional fluid lubricant using low Noack volatility base stock fluids.
Kramer, Anatoly Ilich; Surana, Phil; Nandapurkar, Pramod Jayant; Yang, Norman, High viscosity polyalphaolefins based on 1-hexene, 1-dodecene and 1-tetradecene.
Tsutsui Toshiyuki (Ohtake JPX) Kioka Mamoru (Iwakuni JPX) Toyota Akinori (Iwakuni JPX) Kashiwa Norio (Iwakuni JPX), Liquid ethylene-alpha-olefin random copolymer, process for production thereof, and use thereof.
Larkin John M. (Austin TX) Watts ; Jr. Lewis W. (Austin TX) Marquis Edward T. (Austin TX), Manufacture of synthetic lubricant additives from internal olefins using boron trifluoride catalysis.
Watts ; Jr. Lewis W. (Austin TX) Marquis Edward T. (Austin TX), Manufacture of synthetic lubricant additives from low molecular weight olefins using boron trifluoride catalysts.
Clason Donald L. (Mentor OH) Schroeck Calvin W. (Eastlake OH), Mixed metal salts/sulfurized phenate compositions and lubricants and functional fluids containing them.
Meinhardt Norman A. (Lyndhurst OH) Davis Kirk E. (Euclid OH), Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same,.
Gutierrez Antonio (Mercerville NJ) Song Won R. (Short Hills NJ) Lundberg Robert D. (Bridgewater NJ) Kleist Robert A. (Bayonne NJ), Novel ethylene alpha-olefin copolymer substituted Mannich base lubricant dispersant additives.
Avery Noyes L. (Gwynedd Valey PA) Horodysky Andrew G. (Cherry Hill NJ) Law Derek A. (Yardley PA) Rudnick Leslie R. (Lawrenceville NJ), Novel lubricant epoxides.
Johnson Ivy D. (Medford NJ) Kirker Garry W. (Washington Township ; Bergen County NJ) Landis Michael E. (Woodbury NJ) Wu Margaret M. (Skillman NJ), Oligomerization of alpha-olefins over layered silicate compositions containing pillars of silica and group VIB metal oxi.
Benjamin Linda A. (Horsham PA) Law Derek A. (Yardley PA) Horodysky Andrew G. (Cherry Hill NJ), Phosphonate adducts of olefinic lubricants having enhanced properties.
Rossi Albert ; Emert Jacob ; Gindelberger David Edward ; Stanat Jon Edmond ; Stokes James Peter ; Sher Jaimes, Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers an.
Schaerfl ; Jr. Robert A. (Baton Rouge LA) Dadgar Ali M. (Baton Rouge LA) Lanier Carroll W. (Baker LA), Preparation of synthetic oils from vinylidene olefins and alpha-olefins.
Schroeck Calvin W. (Eastlake OH), Process for preparing molybdenum-containing compositions useful for improved fuel economy of internal combustion engines.
DiMaio, Anthony J.; Baranski, John R.; Bludworth, John G.; Gillis, Daniel J., Process for producing liquid polyalphaolefin polymer, metallocene catalyst therefor, the resulting polymer and lubricant containing same.
Winter Andreas,DEX ; Rohrmann Jurgen,DEX ; Antberg Martin,DEX ; Dolle Volker,DEX ; Spaleck Walter,DEX, Process for the preparation of a syndiotactic polyolefin.
Bagheri Vahid (Lisle IL) Firth Bruce Edward (Buffalo Grove IL) Money Joanna Kyrle (Chicago IL) Moore Eric Jan (Carol Stream IL) Calabrese Frank (Streamwood IL) Hensey Robert Scott (West Chicago IL), Reactive, low molecular weight, viscous poly(1-olefins) and copoly(1-olefins) and their method of manufacture.
Bagheri Vahid ; Firth Bruce Edward ; Calabrese Frank ; Hensey Robert Scott, Reactive, low molecular weight, viscous poly(1-olefins) and copoly(1-olefins) and their method of manufacture.
Pelrine Bruce P. (Trenton NJ) Wu Margaret M. (Belle Mead NJ), Regeneration of reduced supported chromium oxide catalyst for alpha-olefin oligomerization.
Farng Liehpao O. (Lawrenceville NJ) Horodysky Andrew G. (Cherry Hill NJ) Law Derek A. (Yardley PA), Sulfur-phosphorus adducts of chromium catalyzed polyalphaolefins.
Jackson Andrew (Princeton NJ) Wu Margaret M. (Belle Mead NJ) Chu Alice S. (Spotswood NJ) Pelrine Bruce P. (Trenton NJ), VI enhancing compositions and Newtonian lube blends.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.