Abstract:
A lubricating composition includes, in weight %, at least 90 percent of a vegetable oil, and an additive composition including: (a) about 1.5 to 2 percent triphenylphosphorothionate (TPPT), (b) about 0.1 to 3 percent hindered phenolic antioxidant, (c) about 0.05 to 0.25 percent l-[di(phenyl)aminomethyl]tolutriazole, and (d) about 0.05 to 0.5 percent alkyl succinic acid half ester rust inhibitor.
Abstract:
Thie invention relates to a novel asymmetrical, secondary dialkylamine-based molybdenum dithiocarbamate with improved friction reducing performance, viscosity and solubility, and lubricating compositions containing the same. The compounds are produced from asymmetrical dialkylamine of the formula R1-NH-R2 where Rl and R2 are different, and are independently selected from alkyl groups C3 to C 19. In a preferred embodiment, R3 and R4 are different and are independently selected from alkyl groups C3 to C 19. The molybdenum dithiocarbamates can be represented by the following formula.
Abstract:
The invention relates an additive for improving antioxidant capabilities in a lubricating composition, where the lubricating composition is based on a major amount of a lubricating oil and 0.1-5.0 mass percent of an additive, the additive including a secondary diarlyamine and an organoammonium tungstate.
Abstract:
An abrasive composition is provided based on the following: an abrasive, preferably feldspar 7-59% a clay, preferably smectite clay 3-7%, water 37-64%, an organic solvent, such as kerosene 3-20% and additionally, preferably contains calcium carbonate 20-30% and a surfactant 0.01-1%. The composition may have particles of up to 100 µm, and preferably average particle size diameter of 30-45 µm.
Abstract:
The invention pertains to a latex compound comprising a natural rubber or a synthetic rubber material and a curing system having organic peroxide. The invention also concerns a method of curing a latex film comprising the steps of forming a film from a latex compound comprising a natural rubber or synthetic rubber material and a curing system having organic peroxide and heating the film to obtain cured natural rubber or synthetic rubber materials.
Abstract:
A novel hydroxyalkyldithiocarbamate borate ester compound is presented according to the formula I: (I) where R=alkyl C 1 to C 25 ; R'=H or CO 2 R; R"= (CH 2 ) m ,OH where m=1 to 8, or alkyl C 1 to C 25 ; n=1 to 8. The borate ester compound is prepared by reacting boric acid with a novel hydroxyalkyldithiocarbamate ester compound according to the formula, and optionally with an alcohol [formula II: (II)] where R, R', R" and n are as above. The hydroxyalkyldithiocarbamate ester is prepared by reacting a hydroxyalkylamine with CS 2 , and an acrylate or maleate compound. A lubricating composition is based on a major amount of lubricating oil and a minor amount of the hydroxyalkyldithiocarbamate borate ester.
Abstract:
An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur-or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur-or phosphorus-containing compounds are dithiocarbamate, bisditiocarbamate, 1,3,4-diathiazole, phosphoroditioate, phosphoroditioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more atoms (b), about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
Abstract:
Disclosed are antioxidant compositions comprising of: (I) an organomolybdenum compound; (2) an alkylated diphenylamine; and (3) a sulfur compound selected from the group consisting of: (a) thiadiazole; (b ) dithiocarbamate; and (c) mixtures of (a) and (b).
Abstract:
Antimony dithiocarbamate is known to provide extreme pressure (EP) protection in lubricating compositions, such as grease. However, there is a desire to reduce the amount of antimony used in such compositions, while still maintaining acceptable EP performance. It has now been found by using small amounts of either ammonium dithiocarbamate or zinc dithiocarbamate in combination with the antimony dithiocarbamate (SbDTC), a lower amount of SbDTC can be used in the lubricating composition while still maintaining excellent or exceptional EP protection. To counteract the corrosive effects of the SbDTC and ammonium dithiocarbamate composition, it has been found that compounds containing a carboxylic acid group are effective in avoiding copper corrosion.