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    • 1. 发明公开
    • NON-IONIC SURFACTANT COMPOSITION AND FLUOROPOLYMER AQUEOUS DISPERSION
    • 非张力组分和水性含氟聚合物分散体
    • EP2826550A4
    • 2015-12-30
    • EP13769526
    • 2013-03-27
    • DAIKIN IND LTDDAI ICHI KOGYO SEIYAKU CO LTDUNIV OSAKA
    • TSUDA NOBUHIKOTANAKA ATSUKOADACHI KENJIIZAKI NAHOKOHASHIMOTO MASAYUKISATO TAKAHIRO
    • B01F17/42C08L27/12C08L71/02C09D5/02C09D7/12C09D201/04
    • C08K5/06C08G65/2609C09D5/027C09D7/45C09D201/04C09D127/18C08L71/02
    • The present invention aims to provide a nonionic surfactant composition capable of providing an aqueous dispersion that has excellent mechanical stability and storage stability, is less viscous at high temperatures and high concentrations, and is less likely to give off an odor during drying and firing. The present invention relates to a nonionic surfactant composition including: a nonionic surfactant that comprises a molecule having a C10-C22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C9-C14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process, wherein the nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40°C in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method.
    • 本发明的目的在于提供一种非离子表面活性剂组合物,其能够提供具有优异的机械稳定性和储存稳定性的水分散体,在高温和高浓度下粘度较低,并且在干燥和焙烧期间不太可能发出气味。 本发明涉及一种非离子表面活性剂组合物,其包括:非离子表面活性剂,其包含具有作为疏水基团的C 10 -C 22烷基和/或烯基的分子,作为亲水基的聚氧化烯链,无芳香环,不含C 9 - C 14烷基,其由通过氧代工艺由丙烯和丁烯的混合物衍生的较高级烯烃产生的醇生成,没有衍生自由衍生自丙烯四聚体的高级烯烃衍生的醇的C​​13烷基通过 其中非离子表面活性剂在非离子表面活性剂组合物中在非离子表面活性剂浓度为0.1kg / L的水溶液中在40℃下的流体动力学半径为5.0-8.0nm,半径通过动态光散射测量 方法。
    • 3. 发明公开
    • PROCESS FOR PRODUCING AQUEOUS FLUOROPOLYMER DISPERSION
    • VERFAHREN ZUR HERSTELLUNG EINERWÄSSRIGENFLUORPOLYMERDISPERSION
    • EP1908791A4
    • 2008-11-26
    • EP06731797
    • 2006-04-13
    • DAIKIN IND LTD
    • TSUDA NOBUHIKOSAWAUCHI CHIE
    • C08J3/05C08F6/16C08L27/12
    • C08F6/20C08F6/16C08J3/05C08J2327/12C08L27/12
    • A process for producing by the phase separation method an aqueous fluoropolymer dispersion having a practically sufficiently high fluoropolymer concentration. The process for producing an aqueous fluoropolymer dispersion comprises a step (1) in which a nonionic surfactant having a cloud point is added to an aqueous fluoropolymer dispersion to be treated, a step (2) in which the mixture obtained through the step (1) is separated into a supernatant phase and an aqueous fluoropolymer dispersion phase in a specific temperature range, and a step (3) in which the supernatant phase is removed to obtain the aqueous fluoropolymer dispersion phase, and is characterized in that the upper limit of the specific temperature range is lower than the cloud point of the nonionic surfactant.
    • 通过相分离方法生产具有实际上足够高的含氟聚合物浓度的含氟聚合物水分散体的方法。 本发明的含氟聚合物水性分散液的制造方法包括:在含氟聚合物水性分散液中添加浊点非离子性表面活性剂的工序(1),工序(2) 在特定的温度范围内分离成上清液相和含氟聚合物水性分散液相,除去上清液得到含氟聚合物水性分散液相的工序(3),其特征在于,上述 温度范围低于非离子表面活性剂的浊点。