Shell Internationale Research Maatschappij, B.v.

Shell Oil Comapny

Robert W Shaw

Terence Gilkerson

Richard Mark Scott

David C Jennens

The reaction product of (i) an oligomer formed from one monomer or two or more different monomers, the or each monomer being an ethylenically unsaturated compound and said oligomer or each of said monomers being optionally partially or fully esterified, with (ii) a polyalkenyl derivative of an ethylenically unsaturated carboxylic reagent (iii), and (iv) a polyamine containing at least two --NH.sub.2 and/or --NH groups, wherein at least one of the ethylenically unsaturated compounds of the oligomer has a functional group which can react with an amine; and the use of the reaction product for its dispercency and low haze properties in lubricant compositions, fuel compositions and additive concentrates.

Dispersant additives

The invention provides reaction products of:

Oil-soluble reaction products of polyenes

Compounds of the general formula ##STR1## in which R.sup.1 and R.sup.2 each independently represents an alkyl group, Z represents a nitrogen atom or a group CH unsubstituted or substituted by a substituent X, m is 0 or an integer from 1 to 4, the or each Y represents a halogen atom, n is 0 or an integer from 1 to 5, and the or each X represents a halogen atom or a group selected from alkyl, haloalkyl, cyanoalkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cyano, nitro, alkylsulphonyl, alkylsulphinyl, and sulphonamido, have been found to have herbicidal activity.

Herbicidal 2-pyridyloxy-benzoyl-acrylonitriles

Herbicidal acrylonitrile derivatives

The invention provides compounds of the general formula ##STR1## wherein R represents a hydrogen atom, or an optionally substituted alkyl or acyl group, or an alkenyl or alkynyl group or an inorganic or organic cation;

Growing community of inventors

Sittingbourne, United Kingdom

Robert W Shaw