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    Method of injection molding thermoplastic resin using supercritical fluid and injection molding apparatus
    51.
    发明申请
    Method of injection molding thermoplastic resin using supercritical fluid and injection molding apparatus 有权
    使用超临界流体和注射成型设备注塑热塑性树脂的方法

    公开(公告)号：US20070108663A1

    公开(公告)日：2007-05-17

    申请号：US11598054

    申请日：2006-11-13

    Applicant: Atsushi Yusa ,  Yoshiyuki Nomura ,  Atsushi Yamada

    Inventor： Atsushi Yusa ,  Yoshiyuki Nomura ,  Atsushi Yamada

    IPC: B29C45/76

    CPC classification number: B29C45/0013 ,  B29C45/0053 ,  B29C45/1706 ,  B29C45/1816 ,  B29C2045/1702 ,  B29C2045/1722 ,  Y10S264/14

    Abstract: The present invention provides an injection molding method capable of impregnating a supercritical fluid stably and partially in molten resin in a plasticizing cylinder of an injection molding apparatus. The above object is achieved by providing the method of injection molding which includes measuring a filling amount of the molten resin in the plasticizing cylinder, introducing a supercritical fluid into the molten resin in the plasticizing cylinder while moving back the screw by a predetermined distance without rotating the screw from a position of the screw at the time of completing the measuring, detecting a pressure of the molten resin, and determining based on the pressure an injection start position for the screw.

    Abstract translation: 本发明提供一种注射成型方法，其能够在注射成型装置的增塑圆筒中将超临界流体稳定地和部分浸渍在熔融树脂中。 上述目的是通过提供注射成型方法来实现的，该方法包括测量塑化缸中的熔融树脂的填充量，将超临界流体引入塑化缸中的熔融树脂中，同时使螺杆向后移动预定距离而不旋转 螺杆在完成测量时从螺杆的位置检测熔融树脂的压力，并根据压力确定螺杆的注射开始位置。

    Forming device for thermoplastic resin formed part
    52.
    发明申请
    Forming device for thermoplastic resin formed part 审中-公开
    形成热塑性树脂的成型装置

    公开(公告)号：US20030044480A1

    公开(公告)日：2003-03-06

    申请号：US10220242

    申请日：2001-08-30

    Inventor： Satoshi Shimura ,  Hitoshi Kawauchi ,  Hiroyuki Hirano

    IPC: B29C045/47

    CPC classification number: B29C45/60 ,  B29C2045/1722 ,  Y10S425/228

    Abstract: 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.

    Abstract translation: 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。

    Gas introduction
    53.
    发明授权
    Gas introduction 有权
    气体介绍

    公开(公告)号：US06287494B1

    公开(公告)日：2001-09-11

    申请号：US09402286

    申请日：1999-10-01

    Applicant: Peter Reginald Clarke

    Inventor： Peter Reginald Clarke

    IPC: B29C4402

    CPC classification number: B29C45/1704 ,  B29C44/3446 ,  B29C45/52 ,  B29C2045/1722

    Abstract: The cylinder head (8) of an injection molding machine has a transverse bore (20), in which is threadedly engaged a gas introduction device (21) connected to a gas bottle (22), having a pressure regulator (23). The device has a body (24) which carries a valve poppet (25) in a complementarily shaped bore (26) opening to the passage through the cylinder head. A spring (27) normally closes the poppet valve. A control valve (28), under control of the system (7) is provided upstream of the poppet valve. Gas is introduced into the injection chamber of the machine after suck back and before screw rotate for feeding plastics material to the injection chamber. On injection, the material is injected with the gas added to it.

    Abstract translation: 注射成型机的气缸盖（8）具有横向孔（20），螺纹接合在气体导入装置（21）上，气体导入装置（21）具有压力调节器（23）。 该装置具有主体（24），该主体在与通过气缸盖的通道开口的互补形状的孔（26）中承载阀提升阀（25）。 弹簧（27）通常关闭提升阀。 在系统（7）的控制下的控制阀（28）设置在提升阀的上游。 气体在回吸之后被引入机器的注射室，并且在螺杆旋转之前将塑料材料输送到注射室。 在注射时，将材料注入添加的气体。

    Process of making a plastic part with a retrofitted screw machine
    54.
    发明授权
    Process of making a plastic part with a retrofitted screw machine 失效
    使用改装螺丝机制造塑料部件的工艺

    公开(公告)号：US5932154A

    公开(公告)日：1999-08-03

    申请号：US858955

    申请日：1997-05-20

    Applicant: Desi G. Csongor ,  Donald N. Halgren

    Inventor： Desi G. Csongor ,  Donald N. Halgren

    IPC: A61M25/00 ,  B29C45/17 ,  B29C45/60 ,  B29C45/62 ,  B29C47/00 ,  B29C47/02 ,  B29C47/10 ,  B29C47/38 ,  B29C47/66 ,  B29C47/74 ,  B29C47/88 ,  B29C45/76 ,  B29D22/00

    CPC classification number: A61M25/0009 ,  A61M25/0014 ,  B29C45/1732 ,  B29C45/1734 ,  B29C45/1735 ,  B29C45/60 ,  B29C45/62 ,  B29C47/0004 ,  B29C47/023 ,  B29C47/1045 ,  B29C47/1063 ,  B29C47/38 ,  B29C47/6006 ,  B29C47/66 ,  B29C47/74 ,  B29C47/82 ,  B29C47/822 ,  B29C47/825 ,  B29C47/84 ,  B29C47/882 ,  B29C2045/1707 ,  B29C2045/1722 ,  B29C47/0009 ,  B29C47/1027 ,  B29C47/1072 ,  B29K2105/0005 ,  B29K2105/06 ,  B29K2105/12 ,  B29L2031/7542 ,  Y10T29/49 ,  Y10T408/03

    Abstract: The invention includes retrofitting a plasticating machine for the working and forcing of plastic material into a moldor die, the machine including an elongated housing having a first or proximal end and a second or distal end, and elongated screw shaft with a screw flight therearound. The screw shaft is rotatably supported in the elongated housing, for the working of plastic between the screw shaft and the elongated housing with at least one delivery conduit generally longitudinally arranged through the screw shaft, from a location proximal to the distal tip end of the screw. To accomplish such delivery, the screw shaft is replaced with a corresponding screw shaft with a bore extending through the distal tip end thereof, or the existing screw shaft is machined to have such a bore extend therethrough, from location proximal to the distal end out through the distal tip end. The bore in one embodiment may extend completely through the screw shaft, from its proximalmost end to its distalmost tip end. The conduit may be arranged to be movable in the bore, with respect to the screw shaft to permit delivery of a medium through the screw shaft to any plastic being worked by the machine. The medium may be any single or combination of components selected from the group comprising vapor, liquid, gas, powder or solid, to control the machine or treat any plastic being worked therefrom.

    Abstract translation: 本发明包括改装塑料机，用于将塑料材料加工成模制模具，该机器包括具有第一或近端和第二或远端的细长壳体，以及具有螺旋飞行的细长螺杆轴。 螺杆轴可旋转地支撑在细长壳体中，用于在螺杆轴和细长壳体之间加工塑料，其中至少一个输送管道通常沿纵向布置通过螺杆轴从螺钉的远端尖端的位置 。 为了实现这种传送，螺杆轴被替换为具有延伸穿过其远端尖端的孔的对应的螺杆轴，或者现有的螺杆轴被加工成具有这样的孔，从靠近远端的位置延伸通过 远端尖端。 一个实施例中的孔可以从其最近端到其最远端的尖端完全穿过螺杆轴。 导管可以布置成相对于螺杆轴在孔中是可移动的，以允许介质通过螺杆轴传送到由机器加工的任何塑料。 介质可以是选自蒸气，液体，气体，粉末或固体的组分的任何单一组合或组合，以控制机器或处理从其处理的任何塑料。

    FOAM MOLDING MANUFACTURING METHOD
    56.
    发明申请
    FOAM MOLDING MANUFACTURING METHOD 审中-公开

    公开(公告)号：US20180304510A1

    公开(公告)日：2018-10-25

    申请号：US15771027

    申请日：2016-09-02

    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.

    Inventor： Tomohito ICHIKI ,  Saki JINDAI

    IPC: B29C45/56 ,  B29C44/34 ,  B29C44/58 ,  B29C45/17 ,  B29C47/10 ,  B29C47/92

    CPC classification number: B29C45/561 ,  B29C44/3442 ,  B29C44/583 ,  B29C45/0013 ,  B29C45/1704 ,  B29C45/26 ,  B29C45/56 ,  B29C47/0042 ,  B29C47/1063 ,  B29C47/92 ,  B29C2045/1722

    Abstract: The present invention provides a method for manufacturing a molded foam product which can reduce blisters on the surface and foaming failure in injection molding of a molten resin containing a fluid in a supercritical state even in the case of manufacturing a molded product designed to have a small thickness, thereby giving a molded foam product having excellent heat insulation. The method of the present invention is a method for manufacturing a molded foam product through injection molding of a molten resin containing a fluid in a supercritical state, the method including a step of injecting the molten resin into a cavity formed in a mold and moving a portion of the mold to increase the volume of the cavity before the molten resin injected into the cavity completely solidifies, the cavity being communicated only with a single resin injection port, the mold having a dimple which has a substantially hemispherical shape and is situated to face the resin injection port, the mold having a minimum gap size of 0.2 mm or greater in the cavity during injection of the molten resin.

    METHOD FOR PRODUCING FOAMED MOLDED PRODUCT
    59.
    发明申请
    METHOD FOR PRODUCING FOAMED MOLDED PRODUCT 有权
    生产泡沫塑料制品的方法

    公开(公告)号：US20150336307A1

    公开(公告)日：2015-11-26

    申请号：US14819100

    申请日：2015-08-05

    Applicant: HITACHI MAXELL, LTD.

    Inventor： Satoshi YAMAMOTO ,  Atsushi YUSA ,  Hironori OTA ,  Tetsuya ANO ,  Hideto GOTO

    IPC: B29C44/10

    CPC classification number: B29C44/10 ,  B29C44/3446 ,  B29C44/422 ,  B29C44/60 ,  B29C45/18 ,  B29C45/63 ,  B29C2045/0079 ,  B29C2045/1722 ,  B29C2045/185 ,  B29L2031/00

    Abstract: A method for producing a foamed molded product includes: using a molding apparatus including a plasticizing cylinder having a high pressure kneading zone and a pressure reduction zone; and a screw; controlling a pressure of the pressure reduction zone to be a first pressure in a state that communication between the high pressure kneading zone and the pressure reduction zone is shut off, the first pressure being not less than an atmospheric pressure and not more than a maximum pressure of the high pressure kneading zone which is reached in a case that a molten resin is brought in contact and kneaded with a physical foaming agent; controlling back pressure of the screw to be a second pressure which is not less than the first pressure; and measuring a predetermined amount of the molten resin from which the gasified physical foaming agent has been separated.

    Abstract translation: 发泡成型体的制造方法包括：使用包括具有高压捏合区和减压区的增塑筒的成型装置; 和螺丝; 在所述高压捏合区与所述减压区之间的连通被切断的状态下将所述减压区的压力控制为第一压力，所述第一压力不小于大气压并且不大于最大压力 在熔融树脂与物理发泡剂接触和混合的情况下达到的高压捏合区; 将所述螺杆的背压控制为不小于所述第一压力的第二压力; 并测量已经分离了气化的物理发泡剂的预定量的熔融树脂。

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