Innospec Limited

Matthew Petts

Alan Norman Ross

Katherine Le Manquais

A diesel fuel composition comprising as an additive an ester compound which is the reaction product of an optionally substituted polycarboxylic acid or an anhydride thereof and a polyhydric alcohol of formula H&#x2014;(OR)&#x2014;OH, wherein R is an optionally substituted alkylene group and n is at least 1.

Compositions and methods and uses relating thereto

A quaternary ammonium compound of formula (I): wherein R, R, Rand Ris each independently an optionally substituted hydrocarbyl group, X is a linking group, Ris an optionally substituted alkylene group, Ris hydrogen or an optionally substituted alkyl, alkenyl or aryl group, and n is 0 or a positive integer, provided that n is not 0 when Ris hydrogen.

A quaternary ammonium compound of formula (I): wherein R, R, Rand Ris each independently an optionally substituted hydrocarbyl group; X is a linking group; Ris an optionally substituted alkylene group; n is a positive integer; W is Oor OH; b is 1 when W is OH, and b is 2 when W is O. 

Quaternary ammonium compound and fuel composition

A quaternary ammonium salt of formula (I): (I) where in X is a linking group; Y is O, NH or NRwherein Ris H or an optionally substituted hydrocarbyl group; Qis a moiety that includes a quaternary ammonium cation; Ais an anion; Ris an optionally substituted alkylene group; Ris hydrogen or an optionally substituted hydrocarbyl group; and n is 0 or a positive integer; provided that n is not 0 when Ris hydrogen. 

Composition and methods and uses relating thereto

A diesel fuel composition comprising as an additive an ester compound which is the reaction product of an optionally substituted polycarboxylic acid or an anhydride thereof and an alcohol or formula ROH, wherein R is an optionally substituted hydrocarbyl group.

Methods and uses for improving the performance of diesel engines using fuel additives

A diesel fuel composition comprising as an additive an ester compound which is the reaction product of an optionally substituted polycarboxylic acid or an anhydride thereof and a compound or formula H&#x2014;(OR)&#x2014;OR, wherein R is an optionally substituted alkylene group, Ris an optionally substituted hydrocarbyl group and n is at least 1.

Method and use

A diesel fuel composition comprising as an additive an ester compound which is the reaction product of a polyhydric alcohol of formula H&#x2014;(OR)&#x2014;OH and at least 1.5 molar equivalents of an optionally substituted polycarboxylic acid or an anhydride thereof, wherein R is an optionally substituted alkylene group and n is at least 1.

Growing community of inventors

Elton Chester, United Kingdom

Matthew Petts