Overbased detergent additives
AssigneeInfineum International Limited
InventorsSteve Hammond, Mark A. Price, Philip Skinner
Life of this patent
Estimating the term…
Abstract
Oil-soluble overbased salicylate-phenate detergent additives comprising a complex in which the basic material of the detergent is stabilized by both salicylate and phenate surfactants. The mass % of the salicylate, as a percentage of the total surfactant mass, is at least 50, preferably greater than 50, provided that, when said mass % is less than 60, the TBN: mass % surfactant ratio of the detergent is 10 or less.
Claims13
An oil-soluble overbased salicylate-phenate detergent additive consisting essentially of a complex wherein basic material of the detergent is stabilised by surfactant consisting essentially of both salicylate and phenate surfactants, wherein the mass % of the salicylate, as a percentage of the total surfactant mass, is at least 50, provided that, when said mass % is less than 60, the TBN:
- mass % surfactant ratio of the detergent is 10 or less.
Dependencies are inferred from the claim text.