PROCESS FOR INTRODUCING A GAS INTO A POLYMER
    5.
    发明申请
    PROCESS FOR INTRODUCING A GAS INTO A POLYMER 审中-公开
    将气体引入聚合物的方法

    公开(公告)号:WO2006100517A1

    公开(公告)日:2006-09-28

    申请号:PCT/GB2006/001116

    申请日:2006-03-24

    CPC classification number: B29C44/3453 B29C44/3446 C08J9/12 C08J2201/032

    Abstract: A first polymer (preferably in granular form) is exposed to a gas at a pressure higher than atmospheric pressure to introduce the gas into the polymer. This occurs at a temperature from the glass transition temperature to the melting temperature when the first polymer is crystalline or semi-crystalline in nature, or at a temperature below the glass transition temperature when the first polymer is amorphous in nature. Optionally, the gas-laden polymer may then be mixed with a second polymer. The polymer is then melted to produce a foamed article.

    Abstract translation: 将第一聚合物(优选颗粒形式)暴露于高于大气压的压力下的气体中以将气体引入聚合物。 当第一聚合物在本质上是结晶或半结晶时,或者当第一聚合物本质上是无定形时,在低于玻璃化转变温度的温度下,在玻璃化转变温度至熔融温度的温度下发生。 任选地,然后将含气体的聚合物与第二聚合物混合。 然后将聚合物熔化以产生泡沫制品。

    FLUOROPOLYMER FOAMS PREPARED WITH THE USE OF BLOWING AGENTS AND APPLICATIONS THEREOF
    8.
    发明申请
    FLUOROPOLYMER FOAMS PREPARED WITH THE USE OF BLOWING AGENTS AND APPLICATIONS THEREOF 审中-公开
    使用吹制剂制备的氟聚合物及其应用

    公开(公告)号:WO2009063187A1

    公开(公告)日:2009-05-22

    申请号:PCT/GB2008/003798

    申请日:2008-11-12

    Abstract: Fluoropolymer foams are prepared by mixing fluoropolymer resin with blowing agents and additives to produce foamable compounds at temperatures below the activation temperature of the blowing agent. The compounded material is expanded at temperatures above both the softening point of the fluoropolymer resin and the activation temperature of the blowing agent. The resulting fluoropolymer foam can be fabricated into any desired shape, such as pipes, sheets, tapes, blocks and rods, using techniques such as cutting, welding, thermoforming and adhesive bonding. Alternatively the fluoropolymer compound may be expanded directly into the desired shape, for example, by expanding the compound in a mould.

    Abstract translation: 通过将氟聚合物树脂与发泡剂和添加剂混合来制备含氟聚合物泡沫体,以在低于发泡剂的活化温度的温度下生产可发泡化合物。 复合材料在高于氟聚合物树脂的软化点和发泡剂的活化温度的温度下膨胀。 所得含氟聚合物泡沫可以使用诸如切割,焊接,热成型和粘合剂粘合的技术制造成任何期望的形状,例如管,片,带,块和棒。 或者,氟聚合物化合物可以直接膨胀成所需的形状,例如通过将化合物在模具中膨胀。

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