Lubricating oil composition

Patent · Mon Nov 08 23:00:00 EST 1982

OSTI ID:6617201

Cullen, W P; Levine, S A; Sung, R L; Zoleski, B H

A lubricating oil composition characterized by having a total base number from about 5 to 40 is composed of: a mineral lubricating oil, an overbased calcium sulfonate, a zinc dihydrocarbyl dithiophosphate, an ethoxylated alkylphenol, an alkenylsuccinimide, a polymethacrylate, an ethylene-propylene copolymer, an alkylated diphenylamine and an n-alkylglycine derivative. The n-alkylglycine derivative has the formula: (A) R-NH-CH/sub 2/-CO-N(-R')-R'' in which R is a hydrocarbyl radical having from about 10 to 25 carbon atoms, r' represents hydrogen or an alkyl, hydroxyalkyl or an aminoalkyl radical having from 1 to 5 carbon atoms and r'' represents an alkyl or hydroxyalkyl radical having from 1 to 5 carbon atoms or a -CH/sub 2/-CH/sub 2/-NH)/sub x/H radical in which X has a value from 1 to 3, or; (B) R-NH-CH/sub 2/-C(=N-C(-R)2-CH/sub 2/-X-) in which X represents an oxygen atom or a divalent n-r' radical and R and r' have the values noted above.

• Assignee: Texaco Inc
• Patent Number(s): US 4358385
• OSTI ID: 6617201
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
ADDITIVES
CHEMICAL PREPARATION
DIESEL ENGINES
ENGINES
FRICTION
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SULFONATES
SYNTHESIS