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    • 6. 发明公开
    • Dispersant for nonaqueous systems
    • DispergiermittelfürnichtwässerigeSysteme。
    • EP0359034A1
    • 1990-03-21
    • EP89116024.4
    • 1989-08-30
    • DAI-ICHI KOGYO SEIYAKU CO., LTD.
    • Nishizaki, ShoichiMayuzumi, Tominobu
    • B01F17/46C09D17/00C09B67/00
    • C09D11/03B01F17/005C09B67/0089C09D17/002Y10S516/07
    • The present invention relates to a dispersant for nonaqueous systems which can disperse insoluble fine powders in nonaqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the formation of the so-called hard cake. The dispersant consists essential­ly of at least one polyether compound derived from at least one member of the class consisting of polyamine compounds having 5 to 300 active hydrogen atoms per molecule, polyalkylenimine compounds having 5 to 300 active hydrogen atoms per molecule, and derivatives thereof having 5 to 300 active hydrogen atoms per molecule by addition of at least one of ethylene oxide and propylene oxide and at least one alpha-olefin oxide containing 4 to 30 carbon atoms. The polyether compound has a molecular weight of 1,000 to 1,000,000. The dispersant has a favorable constitution resulting from well-balanced and efficient addition of hydrophobic and hydrophilic alkylene oxides and can disperse different fine powders in various nonaqueous liquids in a short period of time. The dispersions obtained show good storage stability for a prolonged period of time. The invention thus greatly contributes to the technical advancement in the field of nonaqueous fine powder dispersions.
    • 本发明涉及一种用于非水系统的分散剂,其可以在短时间内将不溶性细粉分散在非水液体中,并且对所得分散体具有长期的分散稳定性,而不会形成所谓的硬质饼。 分散剂基本上由至少一种衍生自由每分子具有5至300个活性氢原子的多胺化合物组成的类中的至少一种的聚醚化合物,每分子具有5至300个活泼氢原子的聚亚烷基亚胺化合物及其衍生物具有5 通过加入环氧乙烷和环氧丙烷中的至少一种和至少一种含有4至30个碳原子的α-烯烃氧化物,每分子具有300个活性氢原子。 聚醚化合物的分子量为1,000〜1,000,000。 分散剂具有良好的平衡和有效添加疏水性和亲水性环氧烷烃的结构,并且可以在短时间内将不同的细粉末分散在各种非水液体中。 获得的分散体在长时间内显示良好的储存稳定性。 因此,本发明极大地有助于非水性细粉分散体领域的技术进步。