Low temperature stable concentrate containing fatty acid based composition and fuel composition and method thereof

Abstract

A concentrate composition contains (A) a fatty carboxylic acid based composition selected from (1) a fatty monocarboxylic acid, (2) an ester of (A)(1), (3) an amide of (A)(1), (4) an amine salt of (A)(1), and (5) a mixture thereof, and (B) a low temperature stability improving amount of a composition comprising one or more low temperature stability improving compositions. A fuel composition contains a major amount of a fuel and a minor amount of the concentrate composition. A method to improve the lubricity of a fuel composition containing a fuel comprises adding a lubricity improving amount of the concentrate composition to the fuel. The low temperature stability improving composition (B) is very effective in maintaining clarity, homogeneity and fluidity of a concentrate composition containing a fatty carboxylic acid based composition at low temperatures.

1 . A concentrate composition, comprising: 
 (A) a fatty carboxylic acid based composition selected from the group consisting of (1) a fatty monocarboxylic acid, (2) an ester of (A)(1), (3) an amide of (A)(1), (4) an amine salt of (A)(1), and (5) a mixture thereof; and    (B) a low temperature stability improving amount of a composition comprising (1) a copolymer of ethylene and an unsaturated ester of a monocarboxylic acid; and (2) a composition selected from the group consisting of (a) a nitrogen-containing esterified copolymer of a C 2  to C 30  alkene- or a vinyl-substituted aromatic compound and an alpha, beta unsaturated dicarboxylic acylating agent wherein at least 90% of the carbonyl groups of the copolymer of (B)(2)(a) are esterified, and 1 to 10% of the carbonyl groups of the copolymer of (B)(2)(a) are reacted with an amine having one primary or secondary amino group, (b) a copolymer of an unsaturated ester of a monocarboxylic acid and an alpha, beta unsaturated dicarboxylic acylating agent wherein at least 90% of the carbonyl groups of the acylating agent of the (B)(2)(b) copolymer are esterified, (c) a copolymer of an unsaturated ester of a monocarboxylic acid, an alpha, beta unsaturated dicarboxylic acylating agent and an alkenyl alkyl ether wherein at least 90% of the carbonyl groups of the acylating agent of the (B)(2)(c) copolymer are esterified, and (d) mixtures thereof, wherein the weight ratio of (B)(1) to (B)(2) is 0.1:1 to 1:0.1.    
     
     
         2 . The concentrate composition of  claim 1 , further comprising: 
 (C) a diluent.    
     
     
         3 . The concentrate composition of  claim 1 , further comprising: 
 (D) one or more performance additives.    
     
     
         4 . The concentrate composition of  claim 1  wherein component (A) is present at 50 to 99% by weight, the weight ratio of (B)(1) to (B)(2) is 0.5:1 to 1:0.5; and each of (B)(1) and (B)(2) is present at 0.01 to 10% by weight.  
     
     
         5 . The concentrate composition of  claim 1  wherein component (A) is (A)(1) which is a tall oil fatty acid.  
     
     
         6 . The concentrate composition of  claim 1  wherein (B)(1) is a copolymer of ethylene and vinyl acetate wherein the copolymer has a 5 to 40 mole % vinyl acetate content.  
     
     
         7 . The concentrate composition of  claim 1  wherein (B)(2) is (B)(2)(a) in which the copolymer is a copolymer of maleic anhydride and styrene, the copolymer prior to esterification has a reduced specific viscosity of 0.1 to 1, and the amine is an aminoalkyl-substituted heterocyclic compound.  
     
     
         8 . The concentrate composition of  claim 1  wherein (B)(2) is (B)(2)(b) in which the copolymer is a copolymer of a fumarate ester and vinyl acetate wherein the fumarate ester is prepared from a mixture of alcohols having 8 to 30 carbon atoms.  
     
     
         9 . The concentrate composition of  claim 1  wherein (B)(2) is (B)(2)(c) in which the copolymer is a copolymer of a fumarate ester, vinyl acetate and a vinyl alkyl ether wherein the fumarate ester is prepared from a mixture of alcohols having 8 to 30 carbon atoms.  
     
     
         10 . A concentrate composition, comprising: 
 (A) a fatty carboxylic acid based composition selected from the group consisting of (1) a fatty monocarboxylic acid, (3) an amide of (A)(1), (4) an amine salt of (A)(1), and a mixture thereof; and    (B) a low temperature stability improving amount of a composition comprising (B)(2)(a) a nitrogen-containing esterified copolymer of a C 2  to C 30  alkene or a vinyl substituted aromatic compound and an alpha, beta unsaturated dicarboxylic acylating agent wherein at least 90% of the carbonyl groups of the copolymer of (B)(2)(a) are esterified, and 1 to 10% of the carbonyl groups of the copolymer of (B)(2)(a) are reacted with an amine having one primary or secondary amino group.    
     
     
         11 . A concentrate composition, comprising: 
 (A) a fatty carboxylic acid based composition selected from the group consisting of (1) a fatty monocarboxylic acid, (2) an ester of (A)(1), (3) an amide of (A)(1), (4) an amine salt of (A)(1), and (5) a mixture thereof; and    (B) a low temperature stability improving amount of a composition comprising (B)(2)(c) a copolymer of an unsaturated ester of a monocarboxylic acid, an alpha, beta unsaturated dicarboxylic acylating agent and an alkenyl alkyl ether wherein at least 90% of the carbonyl groups of the acylating agent of the (B)(2)(c) copolymer are esterified.    
     
     
         12 . A fuel composition, comprising: 
 a major amount of a fuel; and    a minor amount of the concentrate composition of  claim 1 .    
     
     
         13 . A fuel composition, comprising: 
 a major amount of a fuel; and    a minor amount of the concentrate composition of  claim 10 .    
     
     
         14 . A fuel composition, comprising: 
 a major amount of a fuel; and    a minor amount of the concentrate composition of  claim 11 .    
     
     
         15 . A method to improve the lubricity of a fuel composition comprising a fuel, comprising: 
 adding a lubricity improving amount of the concentrate composition of  claim 1  to the fuel.    
     
     
         16 . A method to improve the lubricity of a fuel composition comprising a fuel, comprising: 
 adding a lubricity improving amount of the concentrate composition of  claim 10  to the fuel.    
     
     
         17 . A method to improve the lubricity of a fuel composition comprising a fuel, comprising: 
 adding a lubricity improving amount of the concentrate composition of  claim 11  to the fuel.