Use of a mixture of a complex ester with a monocarboxylic acid to reduce friction
AssigneeBASF SE
InventorMatthias Zorn
Life of this patent
Estimating the term…
Abstract
The present invention relates to the use of a mixture comprising (I) at least one complex ester obtainable by an esterification reaction between (A) at least one aliphatic linear or branched C2-to C12-dicarboxylic acid, (B) at least one aliphatic linear or branched polyhydroxy alcohol with 3 to 6 hydroxyl groups, and (C) as a chain stopping agent (C1) at least one aliphatic linear or branched C1-to C30-monocarboxylic acid in case of an excess of component (B), or (C2) at least one aliphatic linear or branched monobasic C1-to C30-alcohol in case of an excess of component (A), and (II) at least one aliphatic monocarboxylic acid having from 12 to 30 carbon atoms in a weight ratio of (I):(II) of from 20 to 80:80 to 20 as an additive in a fuel for different purposes.
Claims15
A fuel additive, comprising:
- (I) at least one complex ester obtained by an esterification reaction of:
- (A) at least one aliphatic linear or branched C2- to C12-dicarboxylic acid,
- (B) at least one aliphatic linear or branched polyhydroxy alcohol with 3 to 6 hydroxyl groups, and
- (C) a chain stopping agent comprising:
- (C1) at least one aliphatic linear or branched C1- to C30-mono carboxylic acid in case of an excess of the component (B), or
- (C2) at least one aliphatic linear or branched monobasic C1- to C30-alcohol in case of an excess of the component (A);
- and
- (II) at least one aliphatic monocarboxylic acid having from 12 to 30 carbon atoms, wherein:
- a weight ratio of the complex ester (I) to the aliphatic monocarboxylic acid (II) is from 20 to 80:80 to 20;
- and
- the fuel additive is adapted to function as an additive in a fuel for reducing fuel consumption in the operation of an internal combustion engine.
Dependencies are inferred from the claim text.