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6 条记录 (耗时 0.022 秒)

    Process for producing foamed body of thermoplastic resin
    1.
    发明授权
    Process for producing foamed body of thermoplastic resin 失效
    制造热塑性树脂发泡体的方法

    公开(公告)号：US07833445B2

    公开(公告)日：2010-11-16

    申请号：US11075737

    申请日：2005-03-10

    申请人： Hiroshi Harada ,  Hitoshi Kawauchi ,  Hiroyuki Hirano ,  Satoshi Shimura

    发明人： Hiroshi Harada ,  Hitoshi Kawauchi ,  Hiroyuki Hirano ,  Satoshi Shimura

    IPC分类号： B29C44/42

    CPC分类号： B29C44/3453 ,  B29C44/083 ,  B29C44/3446 ,  B29C44/586 ,  Y10T428/249961 ,  Y10T428/249988 ,  Y10T428/249989 ,  Y10T428/249991 ,  Y10T428/249992

    摘要： The invention provides a foamed body of thermoplastic resin having a high expansion ratio, desired shape and cells of desired diameter, especially fine cells. The foamed body of thermoplastic resin is produced by filling the thermoplastic resin containing a foaming agent into a cavity 31 of a mold 2a and thereafter enlarging the cavity 31 to expand the resin. In this process, the cavity 31 is completely filled with the resin as melted and containing the foaming agent, then held in its shape as filled with the resin and enlarged to an increased final cavity width upon the average temperature filled in the cavity 31 reaching the range from the melting point of the resin to the melting point plus 30° C.

    摘要翻译： 本发明提供具有高膨胀率，所需形状和所需直径的细胞，特别是细胞的热塑性树脂发泡体。 通过将含有发泡剂的热塑性树脂填充到模具2a的空腔31中，然后扩大空腔31以使树脂膨胀来制造热塑性树脂的发泡体。 在这个过程中，空腔31被熔化并含有发泡剂的树脂完全充满，然后在填充到空腔31中的平均温度达到 范围从树脂的熔点到熔点加30℃。

    Injection molding process and injection molding apparatus for thermoplastic resin molded articles
    4.
    发明授权
    Injection molding process and injection molding apparatus for thermoplastic resin molded articles 失效
    注射成型工艺和热塑性树脂模塑制品的注塑设备

    公开(公告)号：US06949208B1

    公开(公告)日：2005-09-27

    申请号：US10221440

    申请日：2000-09-06

    申请人： Hitoshi Kawauchi ,  Hiroshi Harada ,  Hiroyuki Hirano ,  Satoshi Shimura

    发明人： Hitoshi Kawauchi ,  Hiroshi Harada ,  Hiroyuki Hirano ,  Satoshi Shimura

    IPC分类号： B29C45/00 ,  B29C44/34 ,  B29C45/60 ,  B29K105/04 ,  B29C44/02 ,  B29C44/38

    CPC分类号： B29C44/3449 ,  B29C44/3446

    摘要： An object of the invention is to provide an injection molding process for preparing thermoplastic resin molded articles and an injection molding apparatus for use in practicing this process, the process and the apparatus being adapted to supply a blowing agent, especially a nonreactive gas such as carbon dioxide or nitrogen gas, to a thermoplastic resin continuously at a relatively low pressure with good stability to incorporate the agent or gas into the resin. As shown in FIG. 3, a resin in a cylinder (2) of an injection molding machine (1) as melted by rotating a screw (3) is mixed and dissolves carbon dioxide which is supplied to the molten resin from a gas supply opening (5) formed in the screw (3). An amount of the gas-incorporating molten resin is measured out and injected into a mold cavity to obtain an expansion-molded article. To incorporate carbon dioxide into the molten resin, the gas is supplied from a gas inlet (11) formed in a rear end portion of the screw to a portion (4a) not fed with the resin and positioned between front and rear screw flights and closer to the front flight, through a gas supply channel 6 extending through the screw and via the supply opening (5).

    摘要翻译： 本发明的目的是提供一种用于制备热塑性树脂模塑制品的注射成型方法和用于实施该方法的注射成型装置，该方法和装置适于提供发泡剂，特别是非反应性气体如碳 二氧化氮或氮气在相对较低的压力下连续地连接到热塑性树脂上，具有良好的稳定性，将试剂或气体引入树脂中。 如图所示。 如图3所示，通过旋转螺杆（3）熔化的注射成型机（1）的圆筒（2）中的树脂被混合并从形成在其中的气体供给开口（5）供应到熔融树脂的二氧化碳溶解 螺钉（3）。 测量出一定量的引入气体的熔融树脂，并将其注入模腔中以获得发泡成型品。 为了将二氧化碳引入熔融树脂中，将气体从形成在螺杆的后端部的气体入口（11）供给到未供给树脂的部分（4a），并且位于前后螺杆和 通过穿过螺钉并经由供应开口（5）延伸的气体供应通道6更接近前排。

    Molding apparatus including screw for molded articles of thermoplastic gas impregnated resin
    6.
    发明授权
    Molding apparatus including screw for molded articles of thermoplastic gas impregnated resin 有权
    包括用于热塑性气体浸渍树脂的模塑制品的螺杆的成型装置

    公开(公告)号：US06652254B2

    公开(公告)日：2003-11-25

    申请号：US10220242

    申请日：2002-08-30

    申请人： Satoshi Shimura ,  Hitoshi Kawauchi ,  Hiroyuki Hirano

    发明人： Satoshi Shimura ,  Hitoshi Kawauchi ,  Hiroyuki Hirano

    IPC分类号： B29C4548

    CPC分类号： B29C45/60 ,  B29C2045/1722 ,  Y10S425/228

    摘要： The invention provides a molding apparatus adapted to use a screw having an overall length permitting the use of an existing molding machine cylinder as it is, and is capable of realizing a gas impregnation step. The screw 3 for use in the gas impregnation step comprises a resin melting portion C disposed at an upstream position for rendering the resin molten, a molten resin nonfilled-up portion E integral with the downstream side of the resin melting portion C for making the resin lower than an inert gas at a gas supply opening 5 in pressure, and a gas impregnation portion D integral with the downstream side of the molten resin nonfilled-up portion E for supplying the inert gas and impregnating the molten resin with the inert gas.

    摘要翻译： 本发明提供了一种成型装置，其适用于使用总长度允许使用现有成型机筒的螺杆，并且能够实现气体浸渍步骤。 用于气体浸渍步骤的螺杆3包括设置在用于使树脂熔融的上游位置的树脂熔化部分C，与用于制备树脂的树脂熔化部分C的下游侧成一体的熔融树脂未填充部分E 低于在加压气体供给口5处的惰性气体，和与熔融树脂未填充部分E的下游侧成一体的气体浸渍部分D，用于供应惰性气体并用惰性气体浸渍熔融树脂。