Dispersant additives for lubricating oils and fuels
This patent describes a product prepared by the process which comprises: (a) first reacting a polyamine with a cyclic carbonate at a temperature sufficient to cause reaction wherein the molar charge of the cyclic carbonate to the basic amine nitrogen of the polyamine is from about 0.1:1 to about 10:1; (b) contacting at a temperature sufficient to cause reaction the product of (a) above with an alkenyl or alkyl succinic anhydride wherein the molar charge of the alkenyl or alkyl succinic anhydride to the product of (a) above is from about 0.5:1 to about 5:1; and (c) reacting the product of (b) above with a boron compound selected from the group consisting of boric acid, boron oxides, boron halides and esters of boric acid employing from about 0.1 equivalent to 10 equivalents of boron compound to the product of (b) above.
- Assignee:
- Chevron Research Co., San Francisco, CA
- Patent Number(s):
- US 4702851
- OSTI ID:
- 5997004
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
023000* -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACIDIFICATION
ADDITIVES
AMINES
ANHYDRIDES
BORIC ACID
BORON COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
DICARBOXYLIC ACIDS
ELEMENTS
FUEL ADDITIVES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LUBRICANTS
LUBRICATING OILS
NITROGEN
NONMETALS
OILS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLYMERS
SUCCINIC ACID
SURFACTANTS
SYNTHESIS
YIELDS