Patent · US Active

Mixture from polar oil-soluble nitrogen compounds and acid amides as paraffin dispersant for fuels

US8187345B2 · kind B2 · utility

5Cited by

3References

20Claims

0Family size

Assignee

BASF SE

Inventors

Ansgar Eisenbeis · Georgsmarienhütte, DE
Irene Troetsch-Schaller · Bissersheim, DE
Ulrich Annen · Nümbrecht, DE

Key dates

Filing date	Jun 12, 2007
Grant date	May 29, 2012
Priority date	—
Expiry date	Dec 8, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10L1/232
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Provided is a mixture containing: (a) a polar oil-soluble nitrogen compounds which is capable of sufficiently dispersing paraffin crystals precipitated out under cold conditions in a fuel and is a reaction product formed from reacting a poly(C2- to C20-carboxylic acid), which has at least one tertiary amino group, with a primary or secondary amine; (b) an oil-soluble acid amide reaction product formed from reacting a polyamide, which has from 2 to 1000 carbon atoms, with a C8- to C30-fatty acid or fatty acid-like compound, which has a free carboxyl group; and (c) an oil-soluble reaction product formed from reacting an α,β-dicarboxylic acid, which has from 4 to 300 carbon atoms, or a derivatives thereof, with a primary alkylamine, wherein the sum of components (a) to (c) constitute 100 wt. % of the mixture. The mixture is suitable as a paraffin dispersant in fuels, especially those having a biodiesel content.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.