| 摘要 |
A dispersant which is a phosphate ester of a polymer which contains at least one ether group and a poly(oxyalkylenecarbonyl) chain (POAC chain) derivable from two or more different hydroxycarboxyl acid s or lactones thereof. Also disclosed is the use of the dispersants in paints and printing inks including millbases. The preferr ed dispersants are phosphate esters of an alkyl end-capped poly(oxyalkylenecarbonyl) chain alcohol where the POAC chain is derived from .epsilon.-caprolactone and .delta.-valerolactone and the alkyl group is derived from a monohydroxypolyalkyleneglycol.
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