Apparatus and method for injection molding and cooling pet preforms
    2.
    发明授权
    Apparatus and method for injection molding and cooling pet preforms 有权
    注射成型和冷却宠物预制件的装置和方法

    公开(公告)号:US09381692B2

    公开(公告)日:2016-07-05

    申请号:US14195852

    申请日:2014-03-03

    摘要: In an aspect, an injection molding machine is provided and incorporates a mold block with a plurality of sides including an injection side at which hollow parts are formed in mold cavities, a first post-mold cooling side whereat the hollow parts are cooled, and a part transfer side where parts are transferred out of the mold block. Optionally additional post-mold cooling sides are provided. A takeout structure is provided to remove the hollow parts from molding cores on the injection side, to transfer the hollow parts to the first post-mold cooling side, and to subsequently transfer the hollow parts to the part transfer side. The takeout structure holds the hollow parts by their neck portions and cools their neck portions.

    摘要翻译: 一方面,提供一种注射成型机,并且包括具有多个侧面的模具块,所述多个侧面包括在模腔中形成中空部分的注入侧,中空部件被冷却的第一模具后冷却侧,以及 部件转移面,其中部件被转移出模具块。 可选地,还提供了后模冷却侧。 提供取出结构以从注射侧的成型芯移除中空部分,将中空部分转移到第一模具后冷却侧,并随后将中空部分转移到部件传送侧。 取出结构通过其颈部保持中空部分并冷却其颈部。

    Method of making containers and preforms incorporating barrier materials
    9.
    发明授权
    Method of making containers and preforms incorporating barrier materials 失效
    制造容器和包含阻挡材料的预成型件的方法

    公开(公告)号:US06312641B1

    公开(公告)日:2001-11-06

    申请号:US08953595

    申请日:1997-10-17

    IPC分类号: B29C4513

    摘要: A container of the type adapted to contain an ingestible product and configured to having a multi-layer wall portion. The wall portion includes a multi-component layer having at least two discreet sublayers with an interface extending between the sublayers and extending longitudinally of the container and terminating in a threaded end portion. One sublayer is virgin polyethylene terephthalate, and the other sublayer is a barrier formed of a copolyester of terephthalic acid of low permeability. An outer layer material formed of a recycled polyethylene terephthalate has a thickness greater than the thickness of the barrier sublayer. The several layer materials have refracted indices within the range of 1.55 to 1.75. A process for the production of a multi-layer plastic container involving injecting a virgin polyethylene terephthalate and a thermoplastic barrier material through a lamellar injection system to provide a composite-multilamellae stream. The composite stream is supplied to a premold to form an initial preform. Recycled polyethylene terephthalate is then supplied over the initial preform to form an outer layer of a final preform which is then subjected to a blow molding operation to form the container. Alternatively, virgin polyethylene terephthalate can be supplied to a premold to form an initial preform. Recycled polyethylene terephthalate and a thermoplastic barrier polymer are then injected through a lamellar injection system to form a composite stream of discreet lamella of these materials which are supplied over the initial preform to form a final preform which is then blow molded to the desired configuration.

    摘要翻译: 该容器适于容纳可摄取产品并且被配置为具有多层壁部分。 壁部分包括具有至少两个离散子层的多组分层,其具有在子层之间延伸并在容器的纵向延伸并终止于螺纹端部的界面。 一个子层是原始聚对苯二甲酸乙二醇酯,另一个子层是由低渗透性的对苯二甲酸的共聚酯形成的阻挡层。 由回收的聚对苯二甲酸乙二醇酯形成的外层材料的厚度大于阻挡层的厚度。 多层材料的折射指数在1.55〜1.75的范围内。 一种用于生产多层塑料容器的方法,包括通过层状注射系统注入原始聚对苯二甲酸乙二醇酯和热塑性阻隔材料以提供复合多层流。 将复合流提供给预制件以形成初始预制件。 然后将再生的聚对苯二甲酸乙二醇酯提供在初始预制件上以形成最终预成型件的外层,然后对其进行吹塑操作以形成容器。 或者,可以将原始聚对苯二甲酸乙二醇酯供应到预成型件以形成初始预成型件。 然后通过层状注射系统将回收的聚对苯二甲酸乙二醇酯和热塑性阻隔聚合物注入以形成这些材料的离散薄片的复合流,这些材料在初始预制件上提供以形成最后的预成型件,然后将其吹塑成所需的构型。