CARBOXYLATED DETERGENT- DISPERANT ADDITIVE FOR LUBRICATING OILS
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United States of America Patent
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app pub date -
Dec 6, 2006
filing date -
May 22, 2003
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Abstract
The present invention provides a novel unsulfurized, carboxylate-containing additive for lubricating oils, comprising a mixture of alkaline earth metal salts (hydrocarbyl phenate/hydrocarbyl salicylate) and a reduced amount of unreacted hydrocarbyl phenols, as well as additive packages, concentrates and finished oil compositions comprising the same. Specifically, it relates to additives comprising said mixture in which said hydrocarbyl salicylate is primarily single-aromatic-ring hydrocarbyl salicylate. The invention also provides a method for producing said additive.
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