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US 3,957,854 AGranted
Ester-containing compositions
AssigneeThe Lubrizol Corporation
InventorClark Ober Miller
Life of this patent
Estimating the term…
Abstract
Ester-containing compositions prepared by reacting a high molecular weight carboxylic acid acylating agent with polyoxyalkylene alcohol demulsifiers for aqueous emulsions. The ester-containing compositions are useful as additives in normally liquid fuels and lubricants.
Claims15
Oil-soluble carboxylic acid esters prepared by a process comprising the reaction of
- A. at least one substantially saturated aliphatic hydrocarbon polycarboxylic acid acylating agent having an average of at least thirty aliphatic carbon atoms per molecule exclusive of the carboxylic carbon atom and being substantially free from oil-solubilizing pendant groups;
- with
- B. at least one polyoxyalkylene alcohol which is a demulsifier for aqueous emulsion, has an average molecule weight in the range of from about 1,000 to about 10,000, and is a block polymer comprising (1) a hydrophobic portion corresponding to the formula, --CH(R')-CH.sub.2 -O--, wherein R' is an alkyl group of up to three carbon atoms, and (2) from about 5% to about 40% by weight of a hydrophilic portion corresponding to the formula, --CH.sub.2 -CH.sub.2 -O--;
- and
- C. at least one primary or secondary amine;
- wherein the total amount of (A), (B) and (C) used in the reaction is such that there is at least 0.001 equivalent of (B), and at least 0.01 equivalent of (C) per equivalent of (A).
3 more elements
Oil soluble carboxylic acid esters prepared by a process comprising the reaction of
- A. at least one substantially saturated aliphatic hydrocarbon substituted succinic acid or anhydride wherein the substitutents are derived from a 1-olefin polymer or a halogenated 1-olefin polymer, and have an average molecular weight in the range of from about 700 to about 5,000;
- with
- B. at least one polyoxyalkylene alcohol which is a demulsifier for aqueous emulsions, has an average molecular weight in the range of from about 1,000 to about 10,000, and is a block polymer comprising (1) a hydrophobic portion corresponding to the formula, --CH(R')-CH.sub.2 -O--, wherein R' is an alkyl group of up to two carbon atoms and (2) from about 5% to about 40% by weight of a hydrophilic portion corresponding to the formula, -CH.sub.2 -CH.sub.2 -O--;
- and
- C. at least one alkylene polyamine having two to three carbon atoms in the alkylene groups and three to seven amino nitrogens;
- wherein the total amount of (A), (B) and (C) used in the reaction is such that there is at least 0.001 equivalent of (B), and at least 0.01 equivalent of (C) per equivalent of (A).
3 more elements
Dependencies are inferred from the claim text.