Abstract: The invention provides a compressor oil, wherein 2,6-di-tert-butylphenol and tris (2,4-di-tert-butylphenyl) phosphite are added to a base oil having a naphthene content of from 17 to 30% based on the total amount of the base oil, and has a pour point of ?25° C. or lower. 2,6-di-tert-butylphenol is effective when it is contained in an amount of from 0.5 mass % to 6.0 mass % based on the total amount of the compressor oil, and tris (2,4-di-tert-butylphenyl) phosphite is effective when it is contained in an amount of from 0.3 mass % to 2.0 mass % based on the total amount of the compressor oil. Furthermore, adding an alkaline earth metal salt of alkylsalicylic acid in combination is even more effective. The amount thereof used is preferably from 0.05 mass % to 2.0 mass %.

Abstract: The present invention relates to novel polysulfides mixtures comprising compounds of the formula (I) where n is from 2 to 6, and R is C1-C8-alkyl, to processes for the production of said polysulfides mixtures, to use of these for the production of rubber matures, and to rubber vulcanizates produced therefrom.

Abstract: There are provided a method for producing a magnesium alloy sheet having good press formability and a magnesium alloy coil stock obtained by coiling the magnesium alloy sheet. After a raw material sheet 1 composed of a magnesium alloy is preheated to 280° C. or less, the heated raw material sheet 1 is rolled with a reduction roll 3 and the obtained long rolled sheet is coiled. The surface temperature of the reduction roll 3 is set to be 230° C. or more and 290° C. or less. The preheating, rolling, and coiling are repeatedly performed in a continuous manner. By setting both the temperatures of the raw material sheet 1 and reduction roll 3 to be certain temperatures, the rolling property of the raw material sheet can be improved and the raw material sheet can be properly rolled in a continuous manner. In addition, a variation in temperature in the width direction of the reduction roll can be suppressed and uniform rolling can be performed, resulting in the production of a long magnesium alloy sheet.

Abstract: The present invention relates to a lubricating composition containing a dispersant, a corrosion inhibitor and an antioxidant. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: The invention relates to an industrial gear formulation containing a high TBN overbased detergent that results in decreasing micropitting for industrial gears.

Abstract: Disclosed herein is composition comprising: (A) a lubricant or a hydrocarbon fuel; (B) at least one additive that is a 2-(S(N)-mercaptobenzothiazole)succinic or methylene succinate esters of a structure defined herein; and optionally (C) at least one zinc dihydrocarbyldithiophosphate.

Abstract: A composition comprising: (A) a lubricant, and (B) at least one alcohol that is the reaction product of mercaptobenzothiazoles, mercaptothiazolines, or mercaptobenzimidazoles with various epoxies.

Abstract: The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.

Abstract: A protective lubricating composition is provided which will penetrate readily to closely fitting frictional parts and form a protective non-migrating lubricating film improving lubrication between the moving parts reducing friction and wear and preventing corrosion. The lubricant composition may be combined with solvents and propellants to make a sprayable lubricant composition.

Abstract: The present invention relates to a method of inhibiting the growth of microorganisms in a metal working fluid comprising adding to the metal working fluid a benzisothiazolin-3-one of the Formula (1): wherein R is C4-5-alkyl; R1 is hydroxy, halogen (especially chlorine), C1-4-alkyl or C1-4-alkoxy; and n is from 0 to 4.

Abstract: A lubricating oil composition for automatic transmissions wherein the mass ratio of phosphorus:calcium:boron:sulfur determined by elemental analysis is 1:(0.1 to 2):(0.06 to 2):(0.2 to 20), the concentration of phosphorus is from 0.01 to 0.06 percent by mass, the concentration of the sulfur derived from a base oil is from 0 to 0.1 percent by mass, and the concentration of the sulfur derived from sulfur-based additives is from 0.01 to 0.15 percent by mass, based on the total amount of the composition. The lubricating oil composition can prevent the occurrence of scratch phenomenon even over a long period of time when used in a metal belt type continuously variable automatic transmission.

Abstract: This invention relates to compounds which are suitable as ash-free antiwear additives and antioxidants, to lubricant compositions comprising said compounds as well as to their use. are particularly preferred. In the preferred compounds I′, R2 is isooctyloxycarbonylmethyl, R3 is isooctyloxycarbonylmethylthiomethyl and R4 is hydrogen; or R2 is tert-nonyl and R3 is tert-nonylthiomethyl and R4 is hydrogen; or R2 is isooctyloxycarbonylmethyl, R3 is hydrogen and R4 is isooctyloxycarbonylmethylthiomethyl; or R2 is tert-nonyl, R3 is hydrogen and R4 I is tert-nonylthiomethyl.

Abstract: This invention relates to compounds which are suitable as ash-free antiwear additives and antioxidants, to lubricant compositions comprising said compounds as well as to their use. Compounds of formulae ##STR1## are particularly preferred. In the preferred compounds I',R.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is isooctyloxycarbonylmethylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is tert-nonyl and R.sub.3 is tert-nonylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is hydrogen and R.sub.4 is isooctyloxycarbonylmethylthiomethyl; orR.sub.2 is tert-nonyl, R.sub.3 is hydrogen and R.sub.4 I is tert-nonylthiomethyl.In the preferred compounds II',R.sub.2 and R.sub.2 ' are isooctyloxycarbonylmethyl, R.sub.3 and R.sub.3 ' are isooctyloxycarbonylmethylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.2 ' are tert-nonyl, R.sub.3 and R.sub.3 ' are tert-nonylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.

Abstract: Suitable lubricant additives are the compounds of formulae wherein the substituents and groups have the following preferred meanings:R.sub.1 =H; R.sub.2 =methyl or tert-butyl; R.sub.3 =tert-butyl;s=0, 1 or 2;R.sub.4 =--A--[(C.sub.6 H.sub.2)(methyl or tert-butyl)(OH)(tert-butyl)];A=--CH.sub.2 CH.sub.2 O--(C.dbd.O)--CH.sub.2 CH.sub.2 -- or --CH.sub.2 CH(CH.sub.3)--O--(C.dbd.O)--CH.sub.2 CH.sub.2.

Abstract: A lubricating oil composition comprises (A) a base oil, (B) a 3-methyl-5-tert-butyl-4-hydroxyphenyl substituted fatty acid ester in an amount of 0.1-5 percent by mass and (C) an auxiliary component, said auxiliary component being one member of the group of (a) a nitrogen-containing compound in an amount of 0.001-1 percent by mass, (b) a sulfur and/or phosphorus-containing compound in an amount of 0.1-5.0 percent by mass or (c) a phenolic compound in an amount of 0.1-5.0 percent by mass. This composition features the combination with a base oil of these specified components whereby there is provided synergistic effect conducive to inhibition or prevention of both oxidation and sludge formation while in use under elevated temperature conditions over extended periods of time.

Abstract: Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5% of polyisobutylene Mn 400-2500 as stray mist suppressants.