Blends of fluoroplastics and fluoroelastomers
    5.
    发明授权
    Blends of fluoroplastics and fluoroelastomers 失效
    氟塑料和含氟弹性体的共混物

    公开(公告)号:US4713418A

    公开(公告)日:1987-12-15

    申请号:US805543

    申请日:1985-12-06

    CPC分类号: C08L27/18

    摘要: A composition and method for preparing it is disclosed. The composition in a blend of a cured fluoroelastomer which except for the cure sites is a perfluorocarbon and a thermoplastic copolymer of tetrafluoroethylene which is present as generally spherical particles having a particle size of less than 10 microns. The composition is prepared by blending the fluoroelastomer and thermoplastic copolymer at a temperature above the melting point of the thermoplastic copolymer followed by curing the fluoroelastomer.

    摘要翻译: 公开了一种制备组合物和方法。 除了固化部位之外的固化的含氟弹性体的共混物中的组合物是全氟化碳和四氟乙烯的热塑性共聚物,其作为通常为粒径小于10微米的球形颗粒存在。 通过在高于热塑性共聚物的熔点的温度下混合含氟弹性体和热塑性共聚物,然后固化含氟弹性体来制备组合物。

    Processing aid for polymers
    9.
    发明授权
    Processing aid for polymers 失效
    聚合物加工助剂

    公开(公告)号:US5013792A

    公开(公告)日:1991-05-07

    申请号:US572921

    申请日:1990-08-29

    摘要: Polymer blend composition having improved processibility and comprising:(a) a major portion of a difficultly melt-processible polymer, and(b) a minor portion of:(1) at least an effective amount, to improve processibility, of a fluorocarbon copolymer which at the melt-processing temperature of (a) is either in a melted form if crystalline, or is above its glass transition temperature if amorphous, and(2) at least an effective amount, to improve processibility, of at least one tetrafluoroethylene homopolymer or copolymer of tetrafluoroethylene and at least one monomer copolymerizable therewith, wherein the mole ratio of fluorine to hydrogen is at least 1:1, and which is solid at the melt-processing temperature of (a);masterbatches comprised of the processing aid; and processes utilizing the processing aid.

    摘要翻译: 具有改进的加工性的聚合物共混物组合物包括:(a)难熔融聚合物的主要部分,和(b)少量部分:(1)至少有效量的改善氟碳共聚物的加工性 在(a)的熔融加工温度下,如果是结晶态,则其为熔融形式,或者如果是无定形的,则高于其玻璃化转变温度,和(2)至少一种有效量以提高至少一种四氟乙烯均聚物的加工性 四氟乙烯和至少一种可与其共聚的单体的共聚物,其中氟与氢的摩尔比至少为1:1,并且在(a)的熔融加工温度下为固体; 由加工助剂组成的母料; 以及利用加工助剂的方法。