摘要:
An object of the present invention is to provide a sliding member suitable to a soft mating member low in hardness. The present invention relates to a sliding member for sliding with a mating member having a ferrite phase at least on a surface thereof, the sliding member including a coating layer containing a binder resin, molybdenum disulfide, and hard substance particles.
摘要:
[Task] Seizure resistance of sliding material based on graphite-added resin is improved. [Means for Solution] A sliding material based on graphite-added resin has composition (1); graphite: average particle diameter of from 5 to 50 µm, a degree of graphitization of 0.6 or more, the number of graphite particles having a minimum diameter/maximum diameter ratio of 0.5 or more amounts to 50% or more of the total number of the graphite particles observed in a photograph of an optional cross section, content 5 to 60% by weight, as well as composition (2). balance of polyimide resin and/or polyamide-imide resin.
摘要:
Friction modifier additives useful in power transmission compositions, particularly automatic transmission fluids, is disclosed. The additive comprises Component-1 alone formed by condensing a polyamine, such as tetraethylene pentamine, with an aliphatic mono acid, such as isostearic acid, or a mixture, and/or salt, of Component-1 and a Component-2 wherein Component-2 is an acid ester formed by reacting a heterodialkanol such as thiobisethanol and a hydrocarbyl substituted dicarboxylic acid or anhydride, such as octadecenyl succinic anhydride.
摘要:
An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product obtained by first reacting a hydroxybenzoic acid and a polyoxyalkylene polyol to form an ester, and thereafter reacting the ester with an aldehyde or ketone and a substituted or unsubstituted heterocyclic azole to produce the final reaction product.
摘要:
A lubricant composition suitable for use in engines fueled by gasoline or biorenewable fuels or both, comprising an oil of lubricating viscosity and a dispersant system is disclosed herein. Also disclosed is an emulsion composition comprising a biorenewable fuel, an oil of lubricant viscosity, and a dispersant system. A method of reducing aqueous separation in an emulsion composition is also disclosed.
摘要:
A composition of the reaction product of (a) an polyisobutylene substituted succinimide dispersant; (b) an amine component comprising at least one aromatic amine containing at least one N-H group capable of condensing with said carboxylic acid functionality; and (c) an aldehyde; which may optionally be reacted with (d) a maleinated copolymer, is a useful dispersant viscosity modifier.
摘要:
This invention is to dispersants containing polyolefinic succinimide polyamine alkyl acetoacetate adducts of the general formula: wherein Z¹ and Z³ are the same or different and are moities of the formula: Z² is a moiety of the formula: wherein R², R³ and R⁴ are the same or different and are alkylene of from 1 to 6 carbon atoms, m is an integer of from 1 to 5, each A′ is independently selected from the group consisting of H, A and the moiety: wherein A˝ is H or A, R³ is as defined above, R⁶ is alkylene of from 1 to 6 carbon atoms, T¹ and T² are the same or different and each comprises a member selected from the group consisting of moieties of the formula: wherein B′ is substituted or unsubstituted alkyl or aryl-containing group, n¹ is an integer of 0 to 10, n² is an integer of 0 to 10, n³ is an integer of from 0 to 10, n⁴ is an integer of from 0 to 10, with the provisos that the sum of n¹, n², n³ and n⁴ is from 3 to 10 and the sum of n¹, n³ and n⁴ is at least 1, wherein R¹ and R⁵ are independently an olefin polymer having a number average molecular weight ( M n ) between about 200 and 3,500, and wherein A comprises a tautomeric substituent of the formula: wherein R¹⁰ is substituted or unsubstituted alkyl or aryl containing groups, with the proviso that at least one of the A′ or A˝ groups comprises the tautomeric substituent.
摘要:
A hydrocarbyl-substituted mono- and bis-succinimide having polyamine chain linked hydroxyacyl radicals represented by the formula: in which R is a hydrocarbyl radical having from about 8 to 400 carbon atoms, X is a divalent alkylene or secondary hydroxy-substituted alkylene radical having from 2 to 3 carbon atoms, A is hydrogen or a hydroxyacyl radical from the group consisting of glycolyl, lactyl, 2-hydroxymethyl propionyl and 2,2'-bis-hydroxymetyl propionyl radicals and in which at least 30 per cent of said radicals represented by A are said hydroxyacyl radicals, x is a number from 1 to 6, and R' is a radical selected from the group consisting of -NH 2 , -NHA, or a hydrocarbyl substituted succinyl radical having the formula: in which R and A have the values noted above, and a hydrocarbon oil composition containing same are provided.