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    Methods and apparatus for injection molding and injection blow molding multi-layer articles, and the articles made thereby
    1.
    发明授权
    Methods and apparatus for injection molding and injection blow molding multi-layer articles, and the articles made thereby 失效
    注射成型和注射吹塑多层制品的方法和装置，以及由此制成的制品

    公开(公告)号：US06194041B1

    公开(公告)日：2001-02-27

    申请号：US08654569

    申请日：1996-05-29

    申请人： Robert J. McHenry ,  Henry Pfutzenreuter, III ,  Thomas T. Tung ,  John Vella, Jr.

    发明人： Robert J. McHenry ,  Henry Pfutzenreuter, III ,  Thomas T. Tung ,  John Vella, Jr.

    IPC分类号： B65D142

    CPC分类号： B29C47/061 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29C45/16 ,  B29C45/1607 ,  B29C45/1643 ,  B29C47/0023 ,  B29C49/22 ,  B29C2045/161 ,  B29C2045/1612 ,  B29C2045/2689 ,  B29C2045/2893 ,  B29K2105/26 ,  B29L2031/716 ,  B65D1/28 ,  B65D81/266 ,  Y10T428/1321 ,  Y10T428/1352 ,  Y10T428/1383 ,  Y10T428/139

    摘要： Injection molded and injection blow molded multi-layer substantially rigid plastic articles are provided, which, in preferred embodiments, include: articles having at least three layers wherein a portion of the marginal end portion of their internal layer is folded over within the marginal end portion of the side wall of the article, preferably in the flange if the article is a parison or container; the aforementioned articles wherein the folded over portion is toward the inside or the outside of the side wall; the aforementioned articles, parisons, and containers, open-ended, or closed with end closures double seamed thereto or flexible lids secured thereto by an adherent, or heat seal, or other suitable means; the aforementioned articles wherein the folded over portion and any not folded over portion of the marginal end portion of the internal layer, extends substantially uniformly into the marginal end portion of the side wall of the article, parison or container; at least five layer plastic articles having side and bottom walls, and an outside surface layer, an inside surface layer, an internal layer, and first and second intermediate layers, one on either side of the internal layer, and having the terminal end of the internal layer encapsulated by intermediate layer material, whether it be solely or primarily by first or by both first and second intermediate layer material; and multi-layer injection molded plastic containers each of whose side wall is comprised of at least three layers, wherein at least one of said three layers comprises an internal layer comprised of an oxygen scavenging material.

    摘要翻译： 提供了注射成型和注射吹塑多层基本上刚性的塑料制品，其在优选实施例中包括：具有至少三层的制品，其内层的边缘端部的一部分在边缘端部内折叠 如果制品是型坯或容器，优选在凸缘中;上述制品，其中折叠部分朝向侧壁的内侧或外侧;上述制品，型坯和容器， 开口的或封闭的，具有双重接缝的端盖或通过粘合剂或热密封或其他合适的方法固定的柔性盖;上述制品，其中折叠部分和边缘端部的任何未折叠部分 内层基本上均匀地延伸到制品，型坯或容器的侧壁的边缘端部;至少五层pla 具有侧壁和底壁的坚固制品以及外表面层，内表面层，内层和第一和第二中间层，在内层的任一侧上具有一个，并且内层的末端被 中间层材料，无论是单独还是主要通过第一或第一和第二中间层材料; 和多层注塑塑料容器，其每个侧壁由至少三层组成，其中所述三层中的至少一层包括由除氧材料构成的内层。

    Apparatus for injection molding and injection blow molding multi-layer articles
    4.
    发明授权
    Apparatus for injection molding and injection blow molding multi-layer articles 失效
    注塑成型用注塑吹塑多层制品

    公开(公告)号：US4712990A

    公开(公告)日：1987-12-15

    申请号：US484707

    申请日：1983-04-13

    申请人： Frederick G. Kudert ,  Maurice G. Latreille ,  Robert J. McHenry ,  George F. Nahill ,  Henry Pfutzenreuter, III ,  William A. Tennant ,  Thomas T. Tung ,  John Vella, Jr.

    发明人： Frederick G. Kudert ,  Maurice G. Latreille ,  Robert J. McHenry ,  George F. Nahill ,  Henry Pfutzenreuter, III ,  William A. Tennant ,  Thomas T. Tung ,  John Vella, Jr.

    IPC分类号： B29C45/16 ,  B29C49/22 ,  B65D1/28 ,  B29C45/22

    CPC分类号： B29C47/061 ,  B29C45/1607 ,  B29C49/22 ,  B65D1/28 ,  B29B2911/14053 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29C2045/161 ,  B29C2045/1612 ,  B29C47/0009 ,  B29K2105/26 ,  B29L2031/716

    摘要： Apparatus for unit cavity and multi-cavity, multi-layer injection molding and injection blow-molding machines are provided, which in preferred embodiments, include one or more co-injection nozzle means each having a central channel, at least two passageways having associated orifices which communicate with the central channel and valve means operative in the central channel and movable to block and unblock the orifices. The valve means preferably comprise an elongated sleeve having an axial central passageway and a port in its side wall and an elongated pin axially-reciprocable within the sleeve central passageway. The sleeve and pin are mounted in close tolerance slip fit relationship to prevent significant accumulation of polymer melt material therebetween. Preferably, each coinjection nozzle has a gate at one end and at least three passageway orifices, the first more proximate the gate than the others, the third operative at a position more remote from the gate than the first, and the second located between the first and third. In one embodiment, the valve means in one position blocks the second orifice while it does not block the first or third orifice or both the first and third orifices.

    摘要翻译： 提供了用于单元腔和多腔，多层注射成型和注射吹塑机的设备，其在优选实施例中包括一个或多个共注射喷嘴装置，每个共注射喷嘴装置具有中心通道，至少两个具有相关孔的通道 其与中心通道连通并且阀装置在中心通道中操作并且可移动以阻塞和解除堵塞孔。 阀装置优选地包括具有轴向中心通道和其侧壁中的端口的细长套筒和在套筒中心通道内可轴向往复运动的细长销。 套筒和销以紧密公差的滑动配合关系安装，以防止其间的聚合物熔体材料的显着积聚。 优选地，每个共注射喷嘴在一端具有一个浇口和至少三个通道孔口，第一个通道孔口比其他通道更靠近闸门，第三个操作在比栅极更远离第一个位置的位置，第二个位于第一 和第三。 在一个实施例中，一个位置的阀装置阻挡第二孔口，同时它不阻塞第一或第三孔口或第一和第三孔口两者。