DRY ICE ASSISTED POLYMER PROCESSING, METHODS FOR MAKING, AND ARTICLES FORMED THEREOF
    1.
    发明申请
    DRY ICE ASSISTED POLYMER PROCESSING, METHODS FOR MAKING, AND ARTICLES FORMED THEREOF 有权
    干冰辅助聚合物加工,其制备方法及其形成的制品

    公开(公告)号:US20140061966A1

    公开(公告)日:2014-03-06

    申请号:US13602460

    申请日:2012-09-04

    CPC classification number: C08J3/203 B29C47/38

    Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.

    Abstract translation: 在一个实施方案中,处理聚合物的方法包括:混合聚合物和固体二氧化碳; 将聚合物和固体二氧化碳混合物引入通风挤出机的料斗; 使混合物增塑以形成具有溶解的二氧化碳的聚合物熔体; 在模具出口之前排出二氧化碳作为气体; 并通过模具挤出聚合物熔体。 在一个实施方案中,制备制品的方法包括:将聚合物粉末引入挤出机; 将固体二氧化碳粉末引入料斗的挤出机; 塑化和挤出聚合物和固体二氧化碳混合物; 在模具出口之前排出固体二氧化碳; 通过模头挤出聚合物熔体以形成颗粒; 并注射成型聚合物颗粒而不含固体二氧化碳以形成模塑制品。

    Dry ice assisted polymer processing, methods for making, and articles formed thereof
    2.
    发明授权
    Dry ice assisted polymer processing, methods for making, and articles formed thereof 有权
    干冰辅助聚合物加工,制造方法和由其形成的制品

    公开(公告)号:US09458296B2

    公开(公告)日:2016-10-04

    申请号:US13602460

    申请日:2012-09-04

    CPC classification number: C08J3/203 B29C47/38

    Abstract: In an embodiment, a method of processing a polymer comprises: mixing polymer and solid carbon dioxide; introducing the polymer and solid carbon dioxide mixture to a hopper of a vented extruder; plasticizing the mixture to form a polymer melt with dissolved carbon dioxide; venting carbon dioxide as a gas before the die exit; and extruding the polymer melt through a die. In an embodiment, a method of making an article comprises: introducing a polymer powder to an extruder; introducing solid carbon dioxide powder to the extruder at the hopper; plasticizing and extruding the polymer and solid carbon dioxide mixture; venting the solid carbon dioxide before the die exit; extruding the polymer melt through a die to form pellets; and injection molding the polymer pellets without solid carbon dioxide to form molded articles.

    Abstract translation: 在一个实施方案中,处理聚合物的方法包括:混合聚合物和固体二氧化碳; 将聚合物和固体二氧化碳混合物引入通风挤出机的料斗; 使混合物增塑以形成具有溶解的二氧化碳的聚合物熔体; 在模具出口之前排出二氧化碳作为气体; 并通过模具挤出聚合物熔体。 在一个实施方案中,制备制品的方法包括:将聚合物粉末引入挤出机; 将固体二氧化碳粉末引入料斗的挤出机; 塑化和挤出聚合物和固体二氧化碳混合物; 在模具出口之前排出固体二氧化碳; 通过模头挤出聚合物熔体以形成颗粒; 并注射成型聚合物颗粒而不含固体二氧化碳以形成模塑制品。

    Microfluidic mixer having channel width variation for enhanced fluid mixing
    3.
    发明授权
    Microfluidic mixer having channel width variation for enhanced fluid mixing 有权
    具有通道宽度变化以增强流体混合的微流控混合器

    公开(公告)号:US08430558B1

    公开(公告)日:2013-04-30

    申请号:US12553241

    申请日:2009-09-03

    Abstract: A micromixing apparatus includes a mixing microchannel formed in a top surface of a substrate having a channel length and a variable channel width defined by a first sidewall surface and an opposing second sidewall surface. The channel width varies from a minimum channel width h to a maximum channel width H in a ratio of H:h≧1.1:1.0. A first inlet is for injecting a first fluid into the mixing microchannel and a second inlet for injecting a second fluid into the mixing microchannel. The first and second fluid flow in a flow direction in the mixing microchannel along the channel length. The first sidewall surface includes first curved surface portions and the second sidewall surface includes a second curved surface portions. The plurality of first curved surface portions and plurality of second curved surface portions are non-overlapping to provide the variable channel width.

    Abstract translation: 微混合装置包括形成在衬底的顶表面中的混合微通道,其具有通道长度和由第一侧壁表面和相对的第二侧壁表面限定的可变通道宽度。 通道宽度以H:H> = 1.1:1.0的比率从最小通道宽度h到最大通道宽度H变化。 第一入口用于将第一流体注入到混合微通道中,第二入口用于将第二流体注入到混合微通道中。 第一和第二流体沿着通道长度在混合微通道中沿流动方向流动。 第一侧壁表面包括第一弯曲表面部分,第二侧壁表面包括第二弯曲表面部分。 多个第一弯曲表面部分和多个第二弯曲表面部分不重叠以提供可变通道宽度。

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