Thermoplastic fluoropolymer composition
    11.
    发明授权
    Thermoplastic fluoropolymer composition 有权
    热塑性氟聚合物组合物

    公开(公告)号:US08710149B2

    公开(公告)日:2014-04-29

    申请号:US12297888

    申请日:2007-04-23

    IPC分类号: C08L27/12 C08F214/26

    摘要: This invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic hydrogen-containing fluoropolymer [polymer (A)]; and from 0.1 to 10% by weight of (A) of at least one per(halo)fluoropolymer chosen among tetrafluoroethylene (TFE) copolymers having a dynamic viscosity at a shear rate of 1 rad sec−1 of less than 10 Pa sec at a temperature of 280° C. [polymer (B)]. The addition of a TFE copolymer [polymer (B)] of low melt viscosity advantageously enables improvement of rheological behavior of thermoplastic hydrogen-containing fluoropolymer (A), making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency.Still objects of the invention are a process for manufacturing said thermoplastic fluoropolymer composition and the articles, such as shaped articles, films, cable sheathing, pipes, flexible pipes, hollow bodies comprising said thermoplastic fluoropolymer composition.

    摘要翻译: 本发明涉及一种热塑性含氟聚合物组合物,其包含:至少一种含热塑性氢的含氟聚合物[聚合物(A)]; 和(A)至少一种选自四氟乙烯(TFE)共聚物中的至少一种每(卤代)含氟聚合物,其在剪切速率为1radsec-1时的动态粘度小于10Pa·sec, 温度280℃[聚合物(B)]。 加入低熔体粘度的TFE共聚物[聚合物(B)]有利于改善热塑性含氢含氟聚合物(A)的流变行为,使得在不太严格的条件下可能的加工,并产生具有优异表面面积和良好均匀性的最终部件 和一致性。 本发明的另一目的是制造所述热塑性含氟聚合物组合物和制品的方法,例如成型制品,薄膜,电缆护套,管,柔性管,包含所述热塑性含氟聚合物组合物的中空体。