Processing aid for polymers
    4.
    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。

    Fluoropolymer process aids containing functional groups
    5.
    发明授权
    Fluoropolymer process aids containing functional groups 失效
    含有功能组的荧光聚合酶过程

    公开(公告)号:US5132368A

    公开(公告)日:1992-07-21

    申请号:US758425

    申请日:1991-09-03

    摘要: The subject invention provides a composition having excellent extrusion characteristics comprising a difficulty-melt-processible polymer and 0.002-0.5 wt. % of one or more fluoropolymer process aids wherein the fluoropolymer has a fluorine to carbon ratio of at least 1:2, is capable of forming a die-coating film under the prevailing conditions of extrusion temperature and pressure, and contains an effective amount of polar functional polymer chain end groups, --W, wherein --W is selected from --COF, --SO.sub.2 F, --SO.sub.3 M, --OSO.sub.3 M, --COOR, and --COOM, wherein R is C.sub.1-3 alkyl and M is hydrogen, a metal cation, preferably an alkali or alkaline earth metal cation, or a quaternary ammonium cation.

    摘要翻译: 本发明提供了具有优异的挤出特性的组合物,其包含难熔融加工的聚合物和0.002-0.5wt。 一种或多种含氟聚合物加工助剂(其中氟聚合物的氟碳比至少为1:2)的%可以在挤出温度和压力的主要条件下形成模涂膜,并且含有有效量的极性 官能聚合物链端基-W,其中-W选自-COF,-SO2F,-SO3M,-OSO3M,-COOR和-COOM,其中R是C1-3烷基,M是氢,金属阳离子, 优选碱金属或碱土金属阳离子或季铵阳离子。

    Processing aid for polymers
    6.
    发明授权
    Processing aid for polymers 失效
    聚合物加工助剂

    公开(公告)号:US5057575A

    公开(公告)日:1991-10-15

    申请号:US649359

    申请日:1991-02-01

    摘要: Polymer blend composition having improved processibility and comprising:(a) a major portion of a difficultly melt-procesible 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: 聚合物共混组合物具有改进的加工性,并且包括:(a)难熔融可聚合物的主要部分,和(b)少量部分:1至少有效量,以提高氟碳共聚物的加工性, (a)的熔融加工温度如果是结晶态,则为熔融形式,或者如果是无定形的,则高于其玻璃化转变温度,和(2)至少有效量,以提高至少一种四氟乙烯均聚物或共聚物的加工性 四氟乙烯和至少一种可与其共聚的单体,其中氟与氢的摩尔比至少为1:1,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。

    Modified polytetrafluoroethylene resins and blends thereof
    8.
    发明授权
    Modified polytetrafluoroethylene resins and blends thereof 失效
    改性聚四氟乙烯树脂及其共混物

    公开(公告)号:US4952630A

    公开(公告)日:1990-08-28

    申请号:US431948

    申请日:1989-11-06

    摘要: Dispersion-process-produced, non-melt-processible, particulate, core-shell, tetrafluoroethylene copolymer comprising recurring units of tetrafluoroethylene and modifying recurring units of at least one ethylenically unsaturated comonomer that is copolymerizable with the tetrafluoroethylene, the number of recurring units of comonomer in the shell being sufficient to enable the copolymer to compound uniformly with an elastomer or plastic without forming visible agglomerates, and blends thereof with elastomeric and plastic resins.

    摘要翻译: 分散工艺制造的不可熔融加工的颗粒,核 - 壳,四氟乙烯共聚物,其包含四氟乙烯的重复单元并修饰可与四氟乙烯共聚的至少一种烯键式不饱和共聚单体的重复单元,共聚单体的重复单元数 在壳中足以使共聚物能够与弹性体或塑料均匀地复合而不形成可见的附聚物,以及其与弹性体和塑料树脂的共混物。