Abstract:
A drag reduction mixture made from a 30-70 proportion of polyisobutylene particles and water. The mixture further contains a surfactant, a viscosifier, an anti-foaming agent, and a biocide. The mixture can be made as a slurry or suspension, depending on the amount of viscosifier.
Abstract:
An additive concentrate for use in fuels, especially in gasoline for internal combustion engines, comprising (a) 0.2 to 10 wt. % ashless friction modifier which is liquid at room temperature and pressure selected from (i) n-butylamine oleate or derivatives thereof, (ii) a substance comprising tall oil fatty acid or derivatives thereof, and (iii) mixtures of (i) and (ii); (b) 10 to 80 wt. % deposit inhibitor, and (c) carrier fluid. The particular selection of friction modifier (a) enables a stable additive concentrate to be formulated without the need for additional solubilising agent for the friction modifier, while containing sufficient friction modifier to achieve a significant benefit in fri loss, when incorporated in gasoline used to fuel an internal combustion engine, and hence an improvement in fuel economy.
Abstract:
A process for reacting olefinic compounds, certain carboxylic reactants, and aldehydes or ketones and products prepared by the process. The compositions of the process are useful as intermediates for the preparation of additives for lubricants and fuels.
Abstract:
Compositions comprising an ethylene/vinyl acetate or propionate/vinyl linear carboxylate terpolymer improve the low temperature properties of oils having wax contents of at least 3% wt.
Abstract:
The present invention is directed to a fuel additive composition comprising at least two components:(A) a polyether alcohol of the formula ##STR1## wherein in formula (A-1), R is hydrogen or a hydrocarbyl group of 1 to about 30 carbon atoms; R.sup.1 is hydrogen or a hydrocarbyl group of 1 to 5 carbon atoms or mixtures thereof; and x is a number from about 4 to about 40.(B) a hydrocarbylphenol having 1-3 hydrocarbyl groups such that the total weight average molecular weight of the hydrocarbyl groups is about 250 to about 6000.In one embodiment the composition further comprises (C) a nitrogen-containing dispersant.The composition is useful as a fuel additive for reducing intake valve deposits and advantageously, does not contribute to an increase in combustion chamber deposits in port fuel injected internal combustion engines. The invention also relates to concentrates and fuel compositions containing the foregoing fuel additive composition and to a method for fueling an internal combustion engine.
Abstract translation:本发明涉及包含至少两种组分的燃料添加剂组合物:(A)下式的聚醚醇,其中在式(A-1)中,R是氢或1至约30个碳原子的烃基; R 1是氢或1至5个碳原子的烃基或其混合物; (B)具有1-3个烃基的烃基苯酚,使得烃基的总重均分子量为约250至约6000.在一个实施方案中,组合物还包含( C)含氮分散剂。 该组合物可用作减少进气阀沉积物的燃料添加剂,并且有利地不会有助于燃料喷射的内燃机的燃料室沉积物的增加。 本发明还涉及含有上述燃料添加剂组合物的浓缩物和燃料组合物以及一种用于燃烧内燃机的方法。
Abstract:
The present invention relates to at least simply unsaturated polyolefins with a number mean molecular weight in the range of 400 to 1,500 dalton and a dispersibility of M.sub.W /M.sub.N
Abstract:
Compounds comprising a Mannich reaction product ofa) polyisobutene-substituted alkylated succinimide, wherein the alkylated succinimide is derived from a succinate and an alkylene polyamine;b) an aldehyde;c) an alkyl substituted phenol;are disclosed, which are shown to have good detergency properties in hydrocarbon fuels.
Abstract:
This invention relates to low sulfur fuel compositions which exhibit improved lubricity compared to the low sulfur fuels alone. The low sulfur fuel compositions contain a middle distillate fuel having a sulfur content of 0.2% by weight or less, a carboxylic acid amide and at least one member selected from the group consisting of cold flow improvers, ashless dispersants, and mixtures thereof.