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    • 8. 发明申请
    • Dispersing agents
    • 分散剂
    • US20060264565A1
    • 2006-11-23
    • US10551108
    • 2004-03-04
    • Ulf DietrichAnke Reinschmidt
    • Ulf DietrichAnke Reinschmidt
    • C08F290/06
    • B01F17/0057C04B24/163C04B24/2647C04B24/2694C04B2103/408C04B2111/62C08J3/122
    • Dispersing agents especially useful as cement plasticizers are copolymers obtained by polymerizing a) 5 to 70 percent by weight of ethylenically unsaturated monocarboxylic acids, carboxylic acid amides, dicarboxylic acids, or their anhydrides and/or (meth)acrylic acid monoesters of dialcohols, b) 1 to 40 percent ethylenically unsaturated, sulfonate-functional or sulfate-functional compounds, c) 10-80 percent of ethylenically unsaturated compounds of polyethylene glycols containing 1 to 300 ethylene oxide units, and terminal OH groups or —OR′ ether groups, d) 5 to 80 percent of ethylenically unsaturated compounds of polyalkylene glycol containing 1 to 300 C3-4 alkylene oxide units and terminal OH groups or —OR′ ether groups, the percentages totaling 100 percent by weight.
    • 特别可用作水泥增塑剂的分散剂是通过聚合a)5-70重量%的烯键式不饱和一元羧酸,羧酸酰胺,二羧酸或其二酸酐和/或二醇的(甲基)丙烯酸单酯获得的共聚物,b) 1至40%的烯键式不饱和磺酸盐官能或硫酸盐官能化合物,c)10-80%含有1至300个环氧乙烷单元的聚乙二醇和末端OH基团或-OR'醚基团的烯属不饱和化合物,d) 含有1至300个碳原子的3-4个亚烷基氧基单元和末端OH基团或-OR'醚基团的聚亚烷基二醇的5-80%烯属不饱和化合物的百分比总计为100重量%。