Organosulfur adducts as multifunctional additives for lubricating oils and fuels and as multifunctional lubricants
This patent describes an improved lubricant composition. It comprises a major amount of an oil of lubricating viscosity or grease or other solid lubricant prepared therefrom and a minor EP/antiwear and antioxidant additive amount of from about 0.001 to about 10% by weight of a reaction product of a propylene based oligomerized olefin lube oil prepared in the following manner: propylene is first oligomerized over 2,,4,6-collidine modified HZSM-23 zeolite catalyst; the oligomerized product is distilled and the {>=} to C{sub 12} + fraction oligomerized over HZSM-5 zeolite catalyst to provide a propylene lube olefin having a MW of from about 300 to about 6,000 and thereafter reacting the lube olefin and elemental sulfurrand optionally with an organosulfur compound wherein the reaction product is obtained under the following reaction conditions: temperatures which vary from about 80{degrees} to about 225{degrees}C., pressures which vary from about ambient to slightly higher and times which vary from 0.5 to about 12 hours or more, and wherein the organsulfur compound is selected from mercaptothiadiazoles, dimercapto-thiadiazoles, mercaptobenzimidazoles, mercaptobenzoates and mercaptobenzothiadiazoles.
- Assignee:
- Mobil Oil Corp., Fairfax, VA (USA)
- Patent Number(s):
- US 5006271; A
- Application Number:
- PPN: US 7-292039
- OSTI ID:
- 6030607
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADDITIVES
ALKENES
ANTIOXIDANTS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
CHEMICAL REACTION KINETICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
KINETICS
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
REACTION KINETICS