摘要:
Improvements in machining systems that utilize machining fluids comprising a supercritical fluid are described. Some systems may provide centralized distribution of a supercritical machining fluid and/or a lubricant to a plurality of machining tools in a machining facility. Other systems may allow for selective delivery of multiple machining fluids to a machine tool. For example, a supercritical machining fluid and a non-supercritical machining fluid may be selectively delivered to a machining tool as desired for a particular machining process.
摘要:
La présente invention concerne l'utilisation d'une composition lubrifiante comprenant au moins une huile de base minérale et au moins un ester choisi parmi les esters de polyols pour lubrifier un moteur à gaz.
摘要:
A lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. The lubricating oil base stock has a high temperature high shear (HTHS) viscosity of less than about 1.7 cP as determined by ASTM D4683, and a Noack volatility from about 15 to about 90 percent as determined by ASTM D5800. A lubricating oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. A method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein.
摘要:
A composition including one or more aromatic alkanoate monoester compounds represented by the formulae (I) and (II) as defined herein. The composition has a viscosity (Kv 100 ) from about 1 cSt to about 10 cSt at 100°C as determined by ASTM D445, a viscosity index (VI) from about -100 to about 300 as determined by ASTM D2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D5800. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the composition.
摘要:
In the present invention, compositions that are suitable for use as dielectric fluids are obtained from renewably sourced oils, and blends thereof. Renewably sourced synthetic esters as described herein are prepared using components obtained from natural or biologic feedstocks, wherein the feedstocks can be regenerated via conventional farming techniques. Dielectric fluids that can meet the industry standards are obtained using a process of combining appropriate percentages of components selected from synthetic polyol esters, natural oils, and mineral oil to customize the properties of the dielectric fluid obtained. Some of the properties that can be manipulated in the practice of the present invention include: electrical strength, resistivity, impulse strength, dissipation factor, permittivity, specific heat, thermal conductivity, chemical stability, gas absorption, pour point, viscosity, volatility, flash and fire point, and biodegradability.
摘要:
A low viscosity functional fluid composition or brake fluid, exhibiting a dry equilibrium reflux boiling point (ERBP) of at least 260°C and/or a wet equilibrium reflux boiling point (WERBP) of at least 180°C, comprising (A) from15 to 90%of alkoxy glycol borate esters [R 1 -O-(CH 2 CH 2 -O) n ] 3 B, wherein R 1 is a C 1- to C 8- alkyl radical and n has a value of from 2 to 6,10 (B) from 5 to 80% of alkoxy glycol components R 2 -O-(CH 2 CH 2 -O) m- H, wherein R 2 is a C 1- to C 8- alkyl radical and m has a value of from 2 to 6, (C) from 0.1 to 10% of an additive package comprising additives with corrosion inhibition action, wherein at least one of the additives contained in the additive package is selected from alkylamine ethoxylates.
摘要:
Die Erfindung betrifft ein Schmiermittel für heiße Glasprozesse und Verwendung des Schmiermittels zur Oberflächenveredlung von Glas, das insbesondere bei Formenschmierprozessen in der Hohlglasindustrie, aber auch bei der Rollenschmierung in der Flachglasindustrie, bei der Schmierung von Flachglaspressformen, bei der Röhrenglasfertigung mit geschmierten Dornen oder bei der Schmierung der Walzen bei der Walzenformung von Glas Anwendung findet. Das Schmiermittel kann auch zur Oberflächenveredlung von Glas eingesetzt werden. Aufgabe der Erfindung ist es, Schmiermittel für heiße Glasprozesse zu entwickeln, die zu einer Oberflächenveredlung der hergestellten Glasartikel, insbesondere zur Festigkeitssteigerung und zur Verbesserung der chemischen Beständigkeit, führen. Die Aufgabe wird durch ein Schmiermittel gelöst, dass aus 5 - 95 Gew.%, vorzugsweise 30 - 70 Gew.%, Aluminiumsalzen der Fettsäuren und 95 - 5 Gew.%, vorzugsweise 70 - 30 Gew.% kohlenstoffbasierten Lösungsmitteln besteht und/oder das aus kohlenstoffbasierten Lösungsmitteln/Suspensionen besteht, die bis 70 Gewichtsprozent Aluminiumpulver mit einer Korngröße von 10 nm bis 500 μm enthalten.
摘要:
A manual transmission fluid having a Vl greater than 160 and a Brookfield viscosity at -400ºC less than 30,000 cP. It comprises: 1) a base oil (made from a waxy feed) having less than 0.06 wt% aromatics, greater than 5 wt% total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 20; and a manual transmission fluid additive package. In another embodiment, the manual transmission fluid comprises: 1) a base oil having a high Vl and a kinematic viscosity at 1000ºC greater than 5.5 cSt, 2) less than 0.01 wt% pour point depressant, and 3) a manual transmission fluid additive package. This invention is also directed to a process to make the manual transmission fluid, comprising the steps of hydroisomerization dewaxing, selecting base oil fractions having a high Vl, and blending the fractions with an additive package.