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    • 6. 发明授权
    • Mixtures of fluoropolymer dispersions
    • 含氟聚合物分散体的混合物
    • US06660798B1
    • 2003-12-09
    • US09588625
    • 2000-06-07
    • Enrico MarcheseMario ViscaDaria Lenti
    • Enrico MarcheseMario ViscaDaria Lenti
    • C08K300
    • D06M15/256C08L27/18C08L2205/02C09D127/18C08L2666/04
    • Mixtures of fluoropolymer dispersions comprising: a) one or more dispersions constituted by TFE homopolymers or by its copolymers with particle average sizes ranging from 180 to 400 nm; b) one or more TFE copolymer dispersions with one or more monomers containing at least one ethylene unsaturation, the comonomer amount being such that the dispersion contains a number of fibrils lower than 10% of the total number of particles; said fibrils being polymer particles having a length/diameter (L/D) ratio higher than 5; the dispersion particle average sizes are smaller of about 90 nm; the component b) contains a comonomer amount such that the resulting polymer is not elastomeric and furthermore it shows composition and viscosity characteristics of the melt such as not to be thermoprocessable.
    • 含氟聚合物分散体的混合物包括:a)由TFE均聚物或其平均尺寸范围为180-400nm的共聚物制成的一种或多种分散体; b)一种或多种TFE共聚物分散体与一种或多种含有至少一个乙烯不饱和度的单体 共聚单体的量使得分散体含有低于总颗粒数的10%的多个原纤维; 所述原纤维是长度/直径(L / D)比高于5的聚合物颗粒; 分散颗粒的平均尺寸小于约90nm; 组分b)包含共聚单体的量,使得所得聚合物不是弹性体,此外它显示熔体的组成和粘度特性,例如不是热可加工的。