Oil compositions containing oil-soluble, oxidatively and mechanically degraded ethylene copolymers

Patent · Tue Feb 08 04:00:00 EST 1983

OSTI ID:6289950

Elliott, R L; Engel, L J; Gardiner, J B

A lubricating oil composition comprising a major amount of lubricating oil and a viscosity index improving amount of an oilsoluble polymer composition comprising an ethylene copolymer, preferably an oxidatively and mechanically degraded ethylene copolymer, having an ethylene content of 26-79 weight percent (35-85 mole percent), a C/sub 3/ to C/sub 18/ higher alpha-olefin and from about 1-25 weight percent of an alkyl norbornene having from about 8 to 28 carbons, preferably ethyl norbornene and preferably at least a pour point depressing amount of a lubricating oil pour point depressant, e.g. an alkyl fumarate vinyl acetate copolymer, whereby superior low temperature viscometrics is provided to said lubricating oil composition.

• Assignee: Exxon Research and Engineering Co
• Patent Number(s): US 4372863
• OSTI ID: 6289950
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
ADDITIVES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DECOMPOSITION
FLUID FLOW
LUBRICANTS
LUBRICATING OILS
MECHANICAL PROPERTIES
OILS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLYETHYLENES
POLYMERS
POLYOLEFINS
SOLUBILITY
VISCOSITY