Abstract:
Lubricating oils of enhanced oxidation stability are obtained by adding to the lubricating oil a mixture comprising carbodiimide as acid scavenger and either n-phenyl-1-naphthyl amine or its substituted derivatives as amine anti-oxidant.
Abstract:
The invention concerns a composition for preparing metal products designed to be shaped by at least one mechanical process of plastic deformation such as wire drawing, rolling, calendering, forging, swaging and the like, without notable shrinkage of substance. The invention is characterised in that it comprises a film-forming binder, at least an additive reactive with the metal, at least a lubricating additive and at least an anticorrosive additive. The invention also concerns a method for preparing said metal products using the claimed composition.
Abstract:
Non-aqueous solvent-free lamellar liquid crystalline lubricant compositions containing an organic acid component or a salt thereof and an organic acid component are disclosed.
Abstract:
A crankcase engine lubricant which comprises the add mixture of the following components: (A) a lubricating oil which comprises the add mixture of the following components: a complex alcohol ester basestock and at least one additional basestock; and (B) an additive package; wherein the crankcase engine lubricant exhibits a percent fuel economy improvement in the range between about 0.3 to 5.0%, versus the lubricating oil without the complex alcohol ester basestock.
Abstract:
The antiwear properties of synthetic ester lubricants intended for use at high temperatures (150 DEG C. to 350 DEG C.) are improved by adding to the lubricants a hydrocarbon insoluble, synthetic ester soluble, aryl diphosphate ester composition containing a major amount of an aryl diphosphate ester of the formula: wherein Ar is unsubstituted or alkyl (C1-C12) substituted arylene and R is unsubstituted or alkyl (C1-C12) substituted aryl.
Abstract:
A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about 100% by weight of a trialkyl phosphate, between about 0% and about 70% by weight of a dialkyl aryl phosphate, and from about 0% to about 25% by weight of an alkyl diaryl phosphate, with the proviso that the sum of the proportionate amount of each base stock component must equal 100%. The alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate contain between 3 and 8 carbon atoms, preferably between 4 and 8 carbon atoms, more preferably between 4 and 5 carbon atoms, and are bonded to the phosphate moiety via a primary carbon. It is still further preferred that the alkyl substituents of the trialkyl phosphate, the dialkyl aryl phosphate, and the alkyl diaryl phosphate are isoalkyl groups. The fluid composition further comprises an acid scavenger, an anti-erosion additive, a viscosity index improver, and an antioxidant. A novel additive combination comprises a high molecular weight butyl/hexyl methacrylate viscos ity index improver, a perfluoroalkylsulfonate anti-erosion additive, a 3,4-epoxycyclohexanecarboxylate or a diepoxide acid scavenger, a di(alkylphenyl)amine, and a phenolic antioxidant comprising a mixture of a 2,4,6-trialkylphenol and a hindered polyphenol compound selected from the group consisting of bis(3,5-dialkyl-4-hydroxyaryl)methane, 1,3,5-trialkyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxyaryl)benzene and mixtures thereof. Preferably, the fluid composition further comprises a benzotriazole derivative as a copper corrosion inhibitor, and a 4,5-dihydroimidazole derivative, as an iron cor rosion inhibitor and to enhance the stability of the fluid.
Abstract:
An oily lubricant for cold plastic processing of metallic material obtained by compounding either one or both types of polymers of 2-ethyl polyacrylate-hexyl ester and polymethacrylic acid lauryl ester with one or more oiliness improvers selected from refined lard, oleic acid, phosphate, hindered ester, isostearic acid, and C18 saturated higher alcohol and which are liquid at room temperature and which are compatible with the polymers. The oiliness improver is compounded as a thinning oil at a specified composition ratio.
Abstract:
A functional fluid composition is provided which comprises a plurality of different phosphazene compounds of the general formula (P=N) n (R) a (R') b (R") c (R"') d wherein R is at least one alkoxy moiety described by the general formula -OCH 2 (CF 2 ) y X, with X being hydrogen or fluorine and y being equal to 1 to about 10; R', R" and R'" are different aryloxy moieties, each of R', R" and R''' being selected from the group consisting of phenoxy, alkoxy phenoxys, alkyl phenoxys, chlorinated phenoxys, fluorinated phenoxys, aryl phenoxys, phenoxy phenoxys, fluoroalkyl phenoxys, fluoroalkoxy phenoxys, chlorinated phenoxy phenoxys, fluorinated phenoxy phenoxys and mixtures thereof; n is equal to 3 to about 4; for each of said phosphazene compounds, each of a, b, c and d is equal to or greater than zero such that the sum a+b+c+d is equal to 2n; and for the composition as a whole, the average value of each of a, b, c and d is greater than 0.
Abstract:
The present invention concerns a functional fluid comprising A) 1 to 99 % by weight based on the total weight of the functional fluid of alkyl(meth)acrylate polymers obtainable by polymerizing a mixture of olefinically unsaturated monomers, which consists of a) 1-100 wt% based on the total weight of the ethylenically unsaturated monomers of one or more ethylenically unsaturated ester compounds of formula (I) where R is hydrogen or methyl, R1 means a linear or branched alkyl residue with 1-6 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula -COOR', where R' means hydrogen or a alkyl group with 1-6 carbon atoms, b) 0-99 wt% based on the total weight of the ethylenically unsaturated monomers of one or more ethylenically unsaturated ester compounds of formula (II) where R is hydrogen or methyl, R4 means a linear or branched alkyl residue with 7-40 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula -COOR', where R' means hydrogen or an alkyl group with 7-40 carbon atoms, c) 0-50 wt% based on the total weight of the ethylenically unsaturated monomers comonomers, and B) 1 to 99 % by weight based on the total weight of the functional fluid of an oxygen containing compound selected from to group of organophosphorus compounds, carboxylic acid esters and/or polyether polyols.
Abstract:
Non-aqueous solvent-free lamellar liquid crystalline lubricant compositions containing an organic acid component or a salt thereof and an organic acid component are disclosed.