SURFACTANT

摘要

A compound of the formula R<1>. [(AO)n.-R<2>]m (I) where: R<1> is the residue of a group having at least m active hydrogen atoms; AO is an alkylene oxide residue; each n is independently from 1 to 100; m is at least 2; and each R<2> is independently H, a C1 to C21 hydrocarbyl, or an acyl group -OC.R<3>, where R<3> is a C1 to C21 hydrocarbyl group, wherein on average greater than one of the R<2> groups is or comprises a C4 to C21 hydrocarbyl group comprising at least two ethylenic double bonds. The compounds are particularly suitable for use in preparing aqueous emulsions or dispersions of resins and polymers, especially alkyd resins.