Mannich base oil additives

Patent · Tue Nov 29 04:00:00 EST 1988

OSTI ID:6434477

Horodysky, A G; Gemmill, R M

This patent describes a method for reducing the coefficient of friction of a liquid lubricating oil which comprises adding to such an oil a coefficient of friction-reducing amount of the product resulting from reacting an aldehyde; at least one amine selected from the group consisting of primary amines containing from 8 to 18 carbon atoms and polyalkylenopolyamines of the formula NHX(R/sup 4/NH)/sub n/R/sup 2/ wherein R/sup 2/ and X are selected from the group consisting of hydrogen, a hydrocarbyl group and a hydroxyhydrocarbyl group, either containing 6 to 18 carbon atoms, R/sup 4/ is an alkylene group containing 1 to 5 carbon atoms and n is 1 to 10; and, at least one alkyl-substituted phenol wherein the alkyl is branched, contains from 16 to 40 carbon atoms and is derived from a 1-olefin oligomer containing from 8 to 12 carbon atoms, the reaction being carried out from about 60/sup 0/C to about 130/sup 0/C using the reactants in a respective molar ratio of about 1.0-2.0:1.0-2.0:1.0.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4787996
• OSTI ID: 6434477
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500 -- Petroleum-- Products & By-Products
023000* -- Petroleum-- Properties & Composition
ADDITIVES
ALDEHYDES
AMINES
AROMATICS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
ELEMENTS
FRICTION FACTOR
HYDROGEN
HYDROXY COMPOUNDS
LUBRICANTS
LUBRICATING OILS
LUBRICATION
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHENOLS
SYNTHESIS