Abstract:
A thio bis(dialkylphenol), wherein the alkyl substituents are C1-C20 groups with the proviso that the total number of substituent carbon atoms is at least 10, is found to be a superior extreme pressure additive.
Abstract:
AMIDO-SUBSITUTED DITHIAZOLE-THIONES ARE OXIDATION INHIBITORS FOR LUBRICATING OILS AND IMPART EXTREME PRESSURE PROPERTIES. SAID COMPOUNDS HAVING THE STRUCTURAL FORMULA:
3-(S=),5-(R-CO-N-)-3H-1,2,4-DITHIAZOLE
WHEREIN R IS A HYDROCARBYL GROUP OF AT LAST 8 CARBON ATOMS.
Abstract:
ESTERS OF 4-HYDROXY- AND 4-THIOL-BENZOIC ACIDS, DITHIO, 1,4-DIHYDRO-1-OXO-4-DITHIOMETHYLENEBENZENES AND 1,4DIHYDRO-1-OXO-4- (DITHIACYCLOPENT-2-YLIDENE)-BENZENES IN WHICH THE HYDROXY, THIOL AND OXO GROUPS ARE STERICALLY HINDERED ARE PROVIDED. ALSO PROVIDED ARE INTERMEDIATES FOR SUCH ESTERS AND SUBSTITUTED BENZENES. IN ADDITION, PROCESSES ARE PROVIDED FOR PREPARING THESE INTERMEDIATES FOR SUCH COMPOUNDS AND PROCESSES FOR PREPARING SUCH COMPOUNDS. THESE COMPOUNDS ARE MIXTURES THEREOF ARE USEFUL AS ADDITIVES FOR LUBRICATING OILS PROVIDING SUCH OILS WITH HIGH RESISTANCE TO OXIDATIVE CHANGE. IN ADDITION, OILS CONTAINING CERTAIN OF THE ESTERS, PARTICULAR BIS-ALKYLENE ESTERS, AND CERTAIN OF THE DITHIACYCLOPENTYLIDENE BENZENES AND MIXTURES THEREOF DEMONSTRATES SUPERIOR EXTREME PRESSURE LUBRICATING PROPERTIES.
Abstract:
Alkenyl halolactone esters of monools and polyols are described. These materials are useful as lubricating oil detergency and/or dispersancy additives.