Chem., Int. Ed., 2008, forty-eight, 157-160 CrossRef PubMed. Pat. No. several, 871, 965, registered Aug. 7, 08, which is a continuation of U. S. Pat. Zero. 4, 575, 431), 8. 8 wt % (44. one grams) of thiadiazole (available as Hitec® 4313 from Ethyl Corporation), and 7. 4 wt % (36. 8 grams) of solvent refined 100 neutral foundation oil (Exxon 100N) were mixed till the mixture has been homogenous. U. T. Pat. No. five, 942, 470 discloses gear oils and kit oil additive focuses of enhanced positraction performance comprising: (i) at least a single oil-soluble sulfur-containing extreme pressure or antiwear agent; (ii) from least one oil-soluble amine salt of a partial ester of an acid of phosphorus; plus (iii) at very least one oil-soluble succinimide compound. Among other factors, the present invention is centered on the surprising discovery that a gear oil additive composition and gear oil composition having low odor plus low chlorine considerably reduces corrosion of yellow metal elements of axles in addition to transmissions, particularly copper mineral and copper alloys. The following preservative components are illustrations of a number of the components that can become favorably employed within the present creation.
The gear essential oil additive composition created by blending the above components may be a slightly different composition than typically the initial mixture because the components might interact. The arrangement of the existing invention can better have a lower sulfur treat rate (organic polysulfide) than similar compositions utilizing sulfurized isobutylene, while providing comparable or enhanced gear scoring opposition and improved overall performance in reducing green metal corrosion. If possible, the additive compositions of the existing invention will not contain compounds that contain zinc. 3. a few wt % (630. 0 grams) regarding the gear oil additive composition explained above, 19. 3 wt % (3, 474. 0 grams) of solvent sophisticated bright stock base oil (Citgo 150), and 77. two wt % (13, 896. 0 grams) of solvent processed 100 neutral base oil (Exxon 100N) were mixed right up until the mixture had been homogenous. Typically, kit oil additive composition will contain coming from about 0 to 20 wt % from the organic liquid diluent and preferably regarding 3 to fifteen wt %.
Generally, kit oil composition comprise about 0. 1 to 3. 6 wt percent, preferably from about 0. 6 in order to 2. 5 wt % plus more ideally from about 1. 5 to two. 2 wt percent of the natural polysulfide. 3. 6th wt % (18. 0 grams) of sulfurized isobutylene getting 47 wt percent sulfur (available as Mobilad C-100 from ExxonMobil Chemical Company), 0. 3 wt % (1. 5 various grams) of thiadiazole (available as Hitec® 4313 from Ethyl Corporation), 12. two wt % (60. 9 grams) associated with solvent refined bright stock base olive oil (Citgo 150), and 83. 9 wt % (419. 6 grams) of hydro-processed 600 neutral base oil (Chevron 600N) were mixed until the mixture was homogenous. 3. 4 wt % (17. zero grams) of the base package J, 1 . 2 wt % (6. two grams) of a thousand molecular weight succinimide dispersant, 15. 0 wt % (75. 0 grams) regarding solvent refined vivid stock base essential oil (Citgo 150), plus 80. 4 wt % (401. 7 grams) of solvent refined 600 natural base oil (Exxon 600N) were combined till the mixture was initially homogenous. The lubrication composition comprises a couple of types of important additives, namely (a) a dithiocarbamic acid ester and/or a good alkyl thiocarbamoyl compound and (b) a 1, 3, 4-thiadiazole compound admixed with all the lubricant base material each in the limited amount. Typically the sulfurized fatty stomach acids and olefins might include, but are usually not limited to be able to, dihydrocarbyl polysulfides; sulfurized olefins; sulfurized oily acid esters associated with both natural in addition to synthetic origins; trithiones; sulfurized thienyl derivatives; sulfurized terpenes; sulfurized oligomers of C2-C8 monoolefins; and sulfurized Diels-Alder adducts like those disclosed found in U. S.
Samples of such agents contain, but are not limited to, phosphates, carbonates, esters, and molybdenum complexes. There are usually no known contrapuesto materials. Polysulfides, these kinds of as trisulfides plus tetrasulfides, are recognized to extrude elemental sulfur at elevated heat, which could respond with olefinic substrates. This risk boosts by having an excess associated with TBPS 454 inserted during a sulfiding operation at temps below 500°F. The injection point needs to be as close as possible to the catalyst bed to avoid potential deposits on the preheating area which can leave solid deposits inside the piping in addition to on the prompt. The hydrocarbon by-product during a sulfiding operation for TBPS454 is isobutane, which usually does not have the possible to dilute hydrogen in the recycle gas during a new sulfiding operation. Therefore, we certainly have given computed BDEs for tBuS-SStBu and tBuSS-SStBu in the text. Closes, e. g. nitrile, polyacrylate, and fluoroelastomer seals, in touch with these compositions have decreased deterioration. 3. Anti-Oxidants – – Anti-oxidants reduce the tendency of mineral skin oils to deteriorate in service which deterioration is evidenced by typically the products of oxidation for example sludge and varnish-like deposits on the metal areas and by an increase in viscosity. Useful man made hydrocarbon oils include liquid polymers regarding alpha olefins getting the proper viscosity.