摘要:
The invention provides a grease composition which contains (a) a base oil, (b) a thickener, (c) a compound having an alkylthiocarbamoyl group, represented by the formula (1), (d) a hindered phenol antioxidant, and (e) a metal deactivator; wherein R1, R2, R3 and R4 are each independently an alkyl group having 1 to 20 carbon groups, and X represents S, S—S, S—CH2—S, S—CH2CH2—S or S—CH2CH2CH2—S.
摘要:
A grease composition which is suitable for a ball bearing exposed to high temperatures and exhibits stable lubricity for a prolonged period of time, and a bearing which encapsulates the grease composition are provided.A grease composition comprising (a) a base oil, (b) a thickener, (c) a compound having alkylthiocarbamoyl group of the general formula (1), and an amine-ketone condensate-based antioxidant. A grease composition further comprising (e) a metal inactivator. (wherein R1, R2, R3, R4 are independently C1-C20 alkyl, and X is S, S—S, S—CH2—S, S—CH2CH2—S, or S—CH2CH2CH2—S)
摘要:
A lubricant based on a mineral or synthetic oil is stabilized against oxidative degradation by the addition of a mixture comprising at least one specified aromatic amine of the formula I or II ##STR1## and at least one sterically hindered amine. The lubricant may contain other antioxidants or other additives. It is preferably used as motor oil.
摘要:
A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyacrylate with a dispersant having at least one reactive nitrogen--containing moiety.Intermediatese of the general formula IV ##STR1## where Y.sup.1 is a group derived from the reaction of the polyacrylate with the reactive nitrogen-containing moieties (i.e. primary or secondary amine) are novel.The process for preparing the lubricating oil soluble compounds can be a one step or multistep process.Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.
摘要:
A lubricant based on a mineral or synthetic oil is stabilized against oxidative degradation by the addition of a mixture comprising at least one specified aromatic amine of the formula I ##STR1## and at least one sterically hindered amine. The lubricant may contain other antioxidants or other additives. It is preferably used as motor oil.
摘要:
A water-in-oil emulsion is disclosed which comprises:(A) a continuous oil phase;(B) a discontinuous aqueous phase;(C) a minor emulsifying amount of at least one salt derived from (C) (I) at least one hydrocarbyl-substituted carboxylic acid or anhydride, or ester or amide derivative of said acid or anhydride, the hydrocarbyl substituent of (C) (I) having an average of from about 20 to about 500 carbon atoms, and (C) (II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compound; and(D) a functional amount of at least one water-soluble, oil-insoluble functional additive dissolved in said aqueous phase; with the proviso that when component (D) is ammonium nitrate, component (C) is other than an ester/salt formed by the reaction of polyisobutenyl (Mn=950) succinic anhydride with diethylethanolamine in a ratio of one equivalent of anhydride to one equivalent of amine.
摘要:
Compounds of the formula: ##STR1## wherein R, R' and R.sup.2 are alkyl radicals having 1 to 20 carbon atoms, phenyl radicals which may be substituted by 1 or 2 alkyl groups having 1 to 8 carbon atoms, aralkyl radicals having 7 to 12 carbon atoms, or cycloalkyl radicals having 5 to 12 carbon atoms; and wherein R.sup.3 is hydrogen or an alkyl radical having from 1 to 4 carbon atoms. These compounds have utility as synergistic stabilizers with phenolic type antioxidants for the stabilization of organic materials such as natural and synthetic polymers, rubbers, lubricants and oils, etc.
摘要:
Condensation products made by reacting an .alpha.-hydroxyalkyl hydroxy-aromatic compound also having at least one non-fused hydrocarbyl substituent with at least one olefinic nitrile, carboxylic acid or carboxylic acid derivative are useful as additives for fuels and lubricants. The total number of carbon atoms in the non-fused hydrocarbyl substituents is at least about 7 while the .alpha.hydroxyalkyl group contains from 1 to about 36 carbons and the olefinic acid or nitrile reactant usually contains 2 to about 40 carbon atoms. Products made from hydroxymethyl alkyl-substituted phenols and .alpha.,.beta.-olefinic acid derivatives such as maleic anhydride and particularly useful. Similarly useful post-treated products can be made from these condensation products by further reaction with alcohols, amines, metal salts or metals.
摘要:
Organic compositions made by reacting an amino compound, carbon disulfide, and a halogenated substantially aliphatic hydrocarbon having at least 25 carbon atoms are useful as additives for lubricants and liquid fuels. Particularly useful are compositions wherein the amino compound is alkylene polyamine and the hydrocarbon is a halogenated polymer or interpolymer of a C.sub.2 to C.sub.6 l-olefin.
摘要:
A surface treatment composition for metal working comprising 10 to 50 parts by weight of a water-soluble thermoplastic synthetic resin having an average degree of polymerization of 300 to 1,700, 40 to 180 parts by weight of an aqueous dispersion of an alkaline earth metal soap and 0.5 to 12 parts by weight of at least one volatile corrosion inhibitor, which can give to a metal panel excellent deep drawing processability, chemical treatment property, rust corrosion resistance or the like.