Orica Australia Pty Ltd

Michael Anthony Bajraszewski

Rodney Walter Parr

Patrick William Houlihan

Keith Moody

Elizabeth Ann Salter

This invention relates to an anionic alkoxylate surfactant of formula (I), where R is a di- or tri-unsaturated C straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR&prime;; each R&prime; is independently selected from hydrogen, C alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulfate, phosphate, sulphosuccinate, succinate, carbomethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.

Anionic alkoxylate surfactant

This invention relates to an anionic alkoxylate surfactant (I), where R is di- or tri-unsaturated C straight or branched hydrocarbon chain, at least two double bonds of said unsaturated chain being conjugated and exhibiting opposite geometric isomerism; m is 0 or 1; Y is O or NR; each R is independently selected from hydrogen, C alkyl and phenyl; n is 1 to 50; and OX is an anionic group selected from the group consisting of acids or salts of sulphate, phosphate, sulphosuccinate, succinate, carboxymethyl, maleate, carboxyethyl, alkenylsuccinate, phthalate, sulphoethyl, 3-sulpho-2-hydroxypropyl, sulphopropyl, oxalate and citrate.

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Keilor East, Australia

Michael Anthony Bajraszewski