Process for supplying compressed gas and process for producing hollow article using the same
    4.
    发明公开
    Process for supplying compressed gas and process for producing hollow article using the same 失效
    通过使用这种方法制造的中空体供给压缩气体和方法的方法

    公开(公告)号:EP0787570A2

    公开(公告)日:1997-08-06

    申请号:EP97101627.4

    申请日:1997-01-31

    IPC分类号: B29C45/17

    CPC分类号: B29C45/1705 B29C45/1732

    摘要: The present invention provides a process for supplying a compressed gas, which is performed in a process for producing a hollow article comprising steps of supplying a molten resin into a mold cavity formed by a pair of a male mold and a female mold and supplying the compressed gas into the molten resin in the mold cavity, wherein the compressed gas is supplied under following three conditions:

    (1) the compressed gas is supplied from plural gas supplying openings;
    (2) the compressed gas is supplied from two or more gas supplying openings simultaneously, during at least a part of the period of time when the compressed gas is supplied; and
    (3) during at least a part of the period of time when the compressed gas is supplied from two or more gas supplying openings simultaneously, the supplying pressure or the rate of flow of the compressed gas at, at least, one gas supplying opening differs from those at the other gas supplying openings.
       The present invention also provides a process for producing a hollow article using the above process.

    摘要翻译: 本发明提供了一种用于供给压缩气体,所有这些都在一个过程执行用于生产空心制品,其包括供给熔融树脂注入到由一对阳模和阴模形成的模腔和供应所述压缩步骤 气体引入模腔中,worin压缩气体下以下三个条件供给的熔融树脂:(1)将压缩气体从多个气体供给开口提供(1); (2)将压缩气体从两个提供或多个气体供给口(1)同时,至少时间当压缩气体被供给的周期的一部分期间; 和(3)至少该时间段的一部分。当压缩气体从两个或更多个气体供给开口(1)同时,供给压力或压缩气体的流动以速率,至少一个提供时 气体供给口(1)从那些在其他气体供给开口(1)不同。 因此,本发明提供了用于生产使用上述方法的中空制品的方法。

    Method for producing a hollow molded article having skin material
    7.
    发明公开
    Method for producing a hollow molded article having skin material 失效
    生产具有表皮材料的中空模制品的方法

    公开(公告)号:EP0684119A3

    公开(公告)日:1995-12-13

    申请号:EP95303572.2

    申请日:1995-05-25

    摘要: A method for producing a hollow molded article having a skin material comprises steps of: (a) providing a skin material between a first mold and a second mold which are in an open state; (b) supplying a molten thermoplastic resin between the first mold and the second mold; (c) closing the first mold and the second mold; (d) inserting a first hollow pin into the molten thermoplastic resin and supplying a gas into the resin through the first hollow pin to form a hollow part; (e) inserting a second hollow pin into said hollow part and supplying the gas through the first hollow pin while discharging the gas through the second hollow pin, thereby to circulate the gas in the hollow part to cool and solidify the molten thermoplastic resin; and (f) opening the first mold and the second mold and taking out the hollow molded article. A hollow molded article with a skin material can be efficiently cooled by means of a simple apparatus and operation without using a complicated apparatus or a special cooling material. Further, a hollow resin molded article having a skin material can be uniformly cooled in a short time without temporarily reducing the pressure in the hollow part and, therefore, a hollow molded article with a skin material free from distortion can be obtained.

    摘要翻译: 一种制造具有表皮材料的中空模制品的方法,包括以下步骤:(a)在处于打开状态的第一模具和第二模具之间提供表皮材料; (b)在第一模具和第二模具之间供应熔融的热塑性树脂; (c)关闭第一模具和第二模具; (d)将第一中空销插入熔融热塑性树脂中,并通过第一中空销将气体供给到树脂中以形成中空部分; (e)将第二中空销插入所述中空部分并通过第一中空销供应气体,同时通过第二中空销排出气体,从而使气体在中空部分中循环以冷却和固化熔融热塑性树脂; (f)打开第一模具和第二模具并取出中空模制品。 具有表皮材料的中空模制品可以通过简单的设备和操作而不使用复杂的设备或特殊的冷却材料而被有效地冷却。 此外,具有表皮材料的中空树脂模制品可以在短时间内被均匀地冷却,而不会暂时降低中空部分中的压力,因此可以获得具有没有变形的表皮材料的中空模制品。

    Process for producing a molded article made of fibre-reinforced thermoplastic material
    8.
    发明公开
    Process for producing a molded article made of fibre-reinforced thermoplastic material 失效
    一种用于制造纤维增强树脂thermoplastishem的模塑制品的方法

    公开(公告)号:EP1260347A3

    公开(公告)日:2004-03-03

    申请号:EP02016912.4

    申请日:1998-07-13

    IPC分类号: B29C47/10 B29C45/00

    摘要: A process for producing a molded article made of fiber-reinforced thermoplastic material, the process comprising the following steps of: providing a molding machine comprising a plasticizing apparatus (3) of a screwing injector type having an opening for receiving raw materials, an apparatus for feeding the raw materials to the plasticizing apparatus and a molding apparatus (8) having a cavity; feeding both thermoplastic material (2) in a solid state and reinforcing fibers (5) with a length from about 3mm to about 50mm simultaneously into the plasticizing apparatus through the opening from the feeding apparatus; melting the thermoplastic material and kneading the thermoplastic material and the reinforcing fibers in the plasticizing apparatus to produce kneaded material comprising the thermoplastic material and the reinforcing fibers; supplying the kneaded material to the molding apparatus from the plasticizing apparatus; and molding the kneaded material into the molded article in the cavity is provided. Also, a molded article made of the fiber-reinforced thermoplastic material which is obtained by the above process and contains the reinforcing fibers with a weight average length of about 2 mm or more is provided.

    Multilayer polyolefin foamed sheet and method and apparatus for producing the same
    9.
    发明公开
    Multilayer polyolefin foamed sheet and method and apparatus for producing the same 有权
    Mehrschichtigegeschäumte聚烯烃 - Folie,Verfahren und Vorrichtung zur deren Herstellung

    公开(公告)号:EP1075921A3

    公开(公告)日:2003-03-12

    申请号:EP00116438.3

    申请日:2000-07-28

    摘要: The present invention relates to a process for producing a multilayer polyolefin foamed sheet, and concretely to a process and an apparatus for producing a multilayer polyolefin foamed sheet which has a smooth surface and is excellent in vacuum formability. Further, the present invention specifically relates to a multilayer polyolefin foamed sheet excellent in vacuum formability and to a foamed container body and a foamed container using the same. As a producing method of the present invention, for example, a method for producing a multilayer polyolefin foamed sheet comprising at least one polyolefin foamed layer and at least one polyolefin non-foamed layer, wherein the method uses a producing apparatus (1) comprising at least one first extruder (3) for extruding a material for forming a polyolefin foamed layer wherein the first extruder (3) is equipped with a foaming agent-supplying device for supplying a foaming agent to a cylinder, at least one second extruder (5) for extruding a material for forming a polyolefin non-foamed layer and at least one extrusion die (7) for co-extruding the material for forming a polyolefin foamed layer and the material for forming a polyolefin non-foamed layer therethrough to form the multilayer polyolefin foamed sheet, the method comprising: a melt kneading step in which, in the first extruder (3), a resin material for forming a polyolefin foamed layer is melted and the melted resin material for forming a polyolefin foamed layer and a foaming agent supplied from the foaming agent-supplying device (6) are mixed to form the material for forming a polyolefin foamed layer; a melting step in which the material for forming a polyolefin non-foamed layer is melted in the second extruder (5); and a co-extruding step in which the material for forming a polyolefin foamed layer and the material for forming a polyolefin non-foamed layer in their melted states are co-extruded into atmospheric pressure though the extrusion die (7) and the extruded material for forming a polyolefin foamed layer is foamed to form the multilayer polyolefin foamed sheet, and the like is provided.

    摘要翻译: 本发明涉及多层聚烯烃发泡片材的制造方法,具体涉及一种具有光滑表面且真空成形性优异的多层聚烯烃发泡片材的制造方法和装置。 此外,本发明具体涉及真空成形性优异的多层聚烯烃发泡片材和发泡容​​器体以及使用其的发泡容器。 作为本发明的制造方法,例如可以举出包含至少一种聚烯烃发泡层和至少一种聚烯烃非发泡层的多层聚烯烃发泡片材的制造方法,其中,该方法使用包括 用于挤出用于形成聚烯烃发泡层的材料的至少一个第一挤出机(3),其中所述第一挤出机(3)装备有用于向气缸供应发泡剂的发泡剂供应装置,至少一个第二挤出机(5) 用于挤出用于形成聚烯烃非发泡层的材料和用于共挤出用于形成聚烯烃发泡层的材料和用于形成聚烯烃非发泡层的材料的至少一个挤出模头(7)以形成多层聚烯烃 发泡片材的方法包括:熔融捏合步骤,其中在第一挤出机(3)中,用于形成聚烯烃发泡层的树脂材料熔化,并且熔融树脂材料用于 形成聚烯烃发泡层和从发泡剂供应装置(6)供应的发泡剂混合以形成聚烯烃发泡层的形成材料; 熔融步骤,其中用于形成聚烯烃非发泡层的材料在第二挤出机(5)中熔化; 以及共挤出步骤,其中用于形成聚烯烃发泡层的材料和用于形成其熔融状态的聚烯烃非发泡层的材料通过挤出模具(7)和挤出模具(7)共挤出成大气压 形成聚烯烃发泡层被发泡以形成多层聚烯烃发泡片材等。