Abstract:
Certain poly(olefin)-N-substituted carbamates are useful to prevent or reduce engine deposits alone or in combination with certain poly(olefin) polymers or hydrogenated forms of the polymers.
Abstract:
An additive having detergency and lubricity properties for incorporation in petroleum hydrocarbon and petroleum hydrocarbon compositions containing said additive. The additive is the condensation product of a polyetherpolyester polyol containing from 2 to about 12 hydroxyl groups and a monocarboxylic acid wherein about 85-100 percent of the hydroxyl groups of the polyol are esterified by condensation with the monocarboxylic acid. The additive is generally incorporated in hydrocarbon fuels and hydrocarbon lubricating oils, but its greatest utility is in hydrocarbon lubricating oils. The preferred lubricating oil composition is a two-cycle engine oil comprising a major proportion of a hydrocarbon lubricating oil and a minor proportion of the additive of this invention.
Abstract:
A method for stabilizing asphaltenes in petroleum feedstocks such as crude oil includes adding to the feedstock an effective amount of an additive containing at least one waste plastic. Suitable waste plastics include, but are not necessarily limited to, polyethylene, polyethylene terephthalate, polystyrene, polycarbonate, polyamide, and polyurethane, and combinations thereof. By “stabilizing” is meant keeping the asphaltenes in solution in the petroleum feedstocks.
Abstract:
A method of treating petroleum fluids may include adding a flow improver composition to the petroleum fluids, the flow improver composition, comprising: a solvent; and a dendrimer-based flow improver, wherein at least a portion of the surface sites of the dendrimer are chemically modified with saturated and unsaturated fatty acids.
Abstract:
Disclosed are multifunctional compounds represented by structural formula (I): methods of producing compounds represented by structural formula (I) and their use in inhibiting corrosion in corrodible material.
Abstract:
An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.
Abstract:
An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.
Abstract:
The present invention provides a liquid fuel composition comprising: a) a base fuel suitable for use in an internal combustion engine; and b) one or more poly(hydroxycarboxylic acid) derivative having a terminal acid group having formula (III): [Y—CO[O-A-CO]n-Zp]m-X (III) wherein Y is hydrogen or optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, m is 1 or 2, Z is an optionally substituted divalent bridging group, p is 0 or 1, and X is terminal acid group or a group carrying a terminal acid group, wherein the terminal acid group is selected from carboxylic acid, carboxymethyl, sulphate, sulphonate, phosphate and phosphonate.