摘要:
A fuel composition and methods for using it for controlling deposit formation in a spark-ignition internal combustion engine, such as a direct injection engine, comprising a spark-ignition fuel, a detergent, and a deposit inhibitor compound.
摘要:
A fuel composition and methods for using it for controlling deposit formation in a spark-ignition internal combustion engine, such as a direct injection engine, comprising a spark-ignition fuel, a detergent, and a deposit inhibitor compound.
摘要:
Polyisobutylenes (PIBs) containing a high proportion of vinylidene end groups are generally favored over conventional PIBs because of their higher reactivity in reactions that are needed to prepare fuel and lubricant additives. However, detergent additives that have been prepared from conventional PIBs actually perform better than detergent additives prepared from high reactive PIBs. Specifically, detergent additives that were prepared from conventional PIB that was then enriched with tri- and tetra-PIB resulted in altered thermal stability and improved detergency of the resulting compound as compared to the structures which were created using a high proportion of vinylidene end groups.
摘要:
The present invention provides an additive composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate. Further, the present invention provides a lubricating composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate, and methods of use thereof.
摘要:
In accordance with the disclosure, one aspect of the present application is directed to a dispersant compound comprising the reaction product of (i) a hydrocarbyl carbonyl compound, (ii) a polycarbonyl compound having at least three carbonyl acylating functions, and (iii) a primary amine moiety of a polyamine. Methods of making and methods of using the dispersant compound are also disclosed.
摘要:
A multi-functional composition for use as an additive for fuels and lubricants. The composition includes an amination product of a hydrocarbyl substituted succinic acylating agent and a mixture containing an aliphatic polyamine and an aromatic polyamine. The molar ratio of aliphatic polyamine to aromatic polyamine in the mixture ranges from about 10:0.1 to about 0.1:10. The amination product contains at least about 0.1 molar equivalent of the polyamine mixture to 1 molar equivalent of the hydrocarbyl substituted succinic acylating agent.
摘要:
A composition for use as an additive for fuels or lubricants. The composition includes a reaction product of a treated amine and a compound selected from the group consisting of hydrocarbyl succinic anhydrides, Mannich adducts derived from hydrocarbyl-substituted phenols reacted with formaldehydes, ethylene-propylene copolymers grafted with ethylenically unsaturated carboxylic groups, copolymers of unsaturated acids and polyolefins, and acid or ester functionalized hydrocarbon polymers. The reaction product is oil soluble and has a number average molecular weight ranging from about 900 to about 50,000 as determined by gel permeation chromatography. The treated amine includes an aliphatic or aromatic amine containing at least one primary or secondary amino group reacted with an aliphatic or aromatic nitrile and hydrogen.
摘要:
There is disclosed a lubricant composition comprising major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) a nitrogen-containing compound represented by the formula (I): wherein R1 and R2 are each independently selected from the group consisting of at least one aryl moiety comprising from about 6 to about 30 atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono; and (iii) a sulfurized compound.
摘要:
There is disclosed a lubricant composition comprising a major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) a nitrogen-containing compound represented by the formula (I): wherein R1 and R2 are each independently selected from the group consisting of at least one aryl moiety comprising from about 6 to about 30 atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono; and (iii) a phenolic compound.
摘要:
There is disclosed a lubricating composition comprising a friction modifier and a base oil comprising less than about 3% by weight of tetracycloparaffins. Methods of making and using the composition are also disclosed.