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 acids or lactones thereof. Also disclosed is the use of the dispersants in paints and printing inks including millbases. The preferred dispersants are phosphate esters of an alkyl end-capped poly(oxyalkylenecarbonyl) chain alcohol where the POAC chain is derived from &egr;-caprolactone and &dgr;-valerolactone and the alkyl group is derived from a monohydroxypolyalkyleneglycol.
一种分散剂,其为至少含有一个醚基和可由两个或更多不同的羟基
羧酸或内酯衍生的聚(氧烷基羰基)链(POAC链)的聚合物的
磷酸酯。还公开了将分散剂用于涂料和印刷油墨,包括磨料基料。首选的分散剂是
磷酸酯,其为末端带有烷基的聚(氧烷基羰基)链醇,其中POAC链来源于
ε-己内酯和
δ-戊内酯,烷基来源于单羟基聚烷基二醇。