Lubricating oil compositions containing poly(oxyalkylene) aminoether carbamates as dispersing agents
Patent
·
OSTI ID:5173442
This patent describes a lubricating oil composition comprising a major portion of oil of lubrication viscosity, and a minor amount of poly(oxyalkylene) aminohydrocarbyloxyhydrocarbyl carbamate having a molecular weight of about 500 to 10,000; wherein the poly(oxyalkylene) moiety of the carbamate is comprised of oxyalkylene units selected from C/sub 2/-C/sub 5/ oxyalkylene units which a sufficient number are branched-chain oxyalkylene units to render the carbamates soluble in lubricating oil; and the aminohydrocarbyloxyhydrocarbyl moiety of the carbamate being derived from a diaminoether having from 2 to 60 carbon atoms.
- Assignee:
- Chevron Research Co., San Francisco, CA
- Patent Number(s):
- US 4728451
- OSTI ID:
- 5173442
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
AMINES
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL COMPOSITION
EFFICIENCY
ENGINES
ETHERS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
020500* -- Petroleum-- Products & By-Products
33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
AMINES
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL COMPOSITION
EFFICIENCY
ENGINES
ETHERS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS