US 7,556,657 B2
Composition
Stephen Leonard Cook, Chester (United Kingdom); Werner Kalischewski, Dorsten (Germany); Gabriele Lohmann, Lünen (Germany); and Armin Marschewski, Haltern (Germany)
Assigned to Innospec Deutschland GmbH, (Germany)
Appl. No. 10/488,134
PCT Filed Aug. 29, 2002, PCT No. PCT/GB02/04002
§ 371(c)(1), (2), (4) Date Aug. 12, 2004,
PCT Pub. No. WO03/020733, PCT Pub. Date Mar. 13, 2003.
Claims priority of application No. PCT/GB01/03897 (WO), filed on Aug. 30, 2001; application No. 102 08 326 (DE), filed on Feb. 27, 2002; and application No. 0205293.4 (GB), filed on Mar. 06, 2002.
Prior Publication US 2005/0011187 A1, Jan. 20, 2005
Int. Cl. C10L 1/30 (2006.01)
U.S. Cl. 44—361 45 Claims
 
1. A composition located in a container associated with the combustion system of a high compression spontaneous ignition engine for introduction into diesel fuel prior to combustion of the fuel in the combustion system, the composition comprising:
i) at least one compound of formula (I):

OG Complex Work Unit Drawing
wherein R1 and R2 are independently selected from a group consisting of hydrogen, unsubstituted or substituted C1-19 hydrocarbyl or a group of formula (II):

OG Complex Work Unit Drawing
wherein Q is a bond or an unsubstituted or substituted hydrocarbyl group;
wherein R3 is selected from a group consisting of hydrogen and unsubstituted or substituted C1-18 hydrocarbyl;
wherein the R1—C—R2 backbone is from 5 to 20 atoms in length;
wherein each A and B is independently an unsubstituted or substituted unsaturated cyclic hydrocarbyl group; and
wherein n is an integer from 0 to 10; and
ii) a diluent or carrier;
wherein the compound(s) of formula (I) is present in an amount sufficient to provide, at −30° C., at least 2.5 wt % of iron, based on the weight of the composition; and wherein substantially all of the compound(s) of formula (I) is dissolved in the diluent or carrier.