摘要:
A lubricant composition of an oil of lubricating viscosity and a polymeric phosphorus ester comprising the condensation product of a monomeric phosphorus acid or an ester thereof with a diol having two hydroxy groups separated by a chain of 4 to about 100 atoms exhibits good volatility, corrosion, wear, and/or seal performance in lubrication of a transmission.
摘要:
A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.
摘要:
A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.
摘要:
A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.
摘要:
A composition comprising a hydrocarbon polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula and each B is independently selected from members of the group of formula: wherein each X is independently O, S, or NRb, and each Z is independently a group of the formula Ra is an ethylene group, a propylene group, which groups optionally have hydrocarbyl or hydroxyhydrocarbyl substituents, or wherein J is H, SH, NH2, or OH, and tautomers thereof; a is 0 or a number ranging from 1 to about 50, and b is a number ranging from 1 to about 30; wherein each of the groups is defined in greater detail herein.
摘要:
Compositions comprising hydroxy-substituted monolactones, a process for reacting olefinic compounds with certain carboxylic reactants and products prepared by the process. The compositions containing the hydroxy-substituted lactones and the products of the process are useful as intermediates for the preparation of additives for lubricants and fuels.
摘要:
Compositions comprising hydroxy-substituted monolactones, a process for reacting olefinic compounds with certain carboxylic reactants and products prepared by the process. The compositions containing the hydroxy-substituted lactones and the products of the process are useful as intermediates for the preparation of additives for lubricants and fuels.
摘要:
Compositions of matter for use in oils and fuels are disclosed. The compositions arise from reaction products (C) formed by reacting substituted carboxylic acylating agents (A) with carboxylic reactants (B). The reactant (A) is usually a polyolefin substituted succinic anhydride or acid which is reacted with (B). (B) is usually a glyoxylic compound. Carboxylic reaction products (C) may further be reacted to form succinimide dispersants, esters or other derivatives. Products (C) may also be reacted with an .alpha.-.beta. unsaturated compound to form second carboxylic reaction products.
摘要:
Compositions represented by the structures ##STR1## where Ar represents an aromatic group, each R is independently a hydrocarbyl group, at least one R having more than 12 carbon atoms, a is 1 to 4, and R' is hydrogen or alkyl, are useful as lubricant and fuel additives and as intermediates for the preparation of derivatives useful as such additives.
摘要:
Compositions comprising unsaturated hydroxycarboxylic compounds, a process for reacting olefinic compounds with carboxylic reagents and products prepared by the process. The compositions containing the hydroxycarboxylic compounds and the products of the process are useful as intermediates for preparing additives for lubricants and fuels.