Lubricating oil compositions containing poly(oxyalkylene) aminoether carbamates as dispersing agents

Patent · Tue Mar 01 00:00:00 EST 1988

OSTI ID:5173442

Plavac, F

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
• Resource Relation: Patent File Date: Filed date 30 Sep 1982
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
33 ADVANCED PROPULSION SYSTEMS
LUBRICATING OILS
CHEMICAL COMPOSITION
AMINES
CARBAMATES
EFFICIENCY
ETHERS
INTERNAL COMBUSTION ENGINES
LUBRICATION
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
ENGINES
HEAT ENGINES
LUBRICANTS
OILS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
020500* - Petroleum- Products & By-Products
330100 - Internal Combustion Engines