Abstract:
The reaction products of the alpha-halogenated half esters or amides of succinic acid and thiadiazole dimercaptides as new compositions of matter and their use as lubricant additives possessing multifunctional properties such as extreme pressure, antiwear, antioxidant and anticorrosion.
Abstract:
Method of preparing an oil soluble lubricant additive composition which includes forming a stable reaction product of a polymer of 3,5-dimercapto-1,2,4-thiadiazole, a polyalkylene succinimide, a fatty acid, and a mercaptan of 8 to 15 carbon atoms.
Abstract:
Complex metal chalcogenides which are useful for high temperature lubrication applications have the formula:M.sub.p (M'O.sub.x A.sub.4-x).sub.m.nH.sub.2 Owhere M is a metal selected from the group consisting of: Mg, V, Mn, Fe, Co, Al, Cu, Ga, In, Bi, As, Ni, Zn, Cd, Sb, Sn and Ce;where M' is a metal selected from the group consisting of Mo and W;where A is S or Se;where x ranges from 1 to 3;where p is 1 or 2 depending on the oxidation state of Mwhere m ranges from 1 to 5 depending on the oxidation state of M;and n ranges from 0 to 6.
Abstract:
Tantalum phosphinates of the general formula: [Ta(OPRR'O).sub.p (Z).sub.5b.-p ].sub.n wherein 1.ltoreq.p.ltoreq.3; R and R' are aryl groups; Z may be a halo, alkoxy, or aryloxy group or a mixture thereof; and n may be any number. The preparation thereof is based on the reaction of a tantalum pentavalent compound (TaZ.sub.5) with a phosphinic acid (RR'P(O)OH) in a dry inert solvent at reflux temperature. Such compounds are useful in high temperature laminates as fillers. Oxide hydrates of these compounds may be prepared by hydrolysis and are similarly useful in high temperature laminates as fillers.