Nitrogen-containing esters and lubricants containing them
A nitrogen-containing ester is described consisting essentially of a carboxy-containing interpolymer, the interpolymer having a reduced specific viscosity of from about 0.05 to about 1 and being derived from at least two monomers, one of the monomers being a low molecular weight aliphatic olefin or styrene and the other of the monomers being an alpha, beta-unsaturated aliphatic acid, anhydride or ester thereof. The nitrogen-containing ester is substantially free of tritratable acidity and characterized by the presence within its polymeric structure of each of the following groups which are derived from the carboxy groups of the interpolymer: (A) a carboxylic ester group, the carboxylic ester group having at least eight aliphatic carbon atoms in the ester radical, and (B) a carbonyl-polyamino group derived from a polyamino compound having one primary or secondary amino group and at least one monofunctional heterocyclic amino group, wherein the molar ratio of carboxy groups of the interpolymer esterified to provide (A) to carboxy groups of the interpolymer neutralized to provide (B) is in the range of about 85:15 to about 99:1.
- Assignee:
- Lubrizol Corp., Wickliffe, OH
- Patent Number(s):
- US 4604221
- OSTI ID:
- 5403161
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
ALKYLATED AROMATICS
AROMATICS
CHEMICAL REACTIONS
ESTERIFICATION
ESTERS
HYDROCARBONS
LUBRICATING PROPERTIES
MONOMERS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
PH VALUE
PHYSICAL PROPERTIES
POLYMERS
STYRENE