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    • 2. 发明申请
    • CLOSURE AND PACKAGE WITH FLEXIBLE BASE WALL PANEL
    • 封闭和包装与柔性基座墙面板
    • WO2008121364A2
    • 2008-10-09
    • PCT/US2008/004133
    • 2008-03-28
    • REXAM CLOSURE SYSTEMS INC.BLOOM, Kenneth, S.PATCHEAK, Terry, D.
    • BLOOM, Kenneth, S.PATCHEAK, Terry, D.
    • B65D41/045
    • A closure includes a plastic shell (28 or 56) having a generally flat base wall (36), a peripheral skirt (30) for mounting the closure on a container neck finish and an annular portion (38 or 54) integrally connecting the skirt to the periphery of the base wall. A flexible resilient sealing liner (44) is disposed on at least an inner surface of the annular portion. The annular portion has an inverted V-shape with an outer leg (42 or 60) integrally connected to the skirt and an inner leg (40 or 58) integrally connected to the periphery of the base wall such that the base wall is disposed axially beneath the annular connection (43) between the inner and outer legs. The inner leg is resiliently flexible with respect to the outer leg upon engagement with an end of a container neck finish so as to flex the inner leg and the base wall outwardly with respect to the skirt and thereby draw the outer leg inwardly into engagement with an outer surface of the container neck finish. The inner leg of the annular V-shaped portion preferably is conical, and in exemplary embodiments of the disclosure the outer leg preferably either is cylindrical or is conical preferably at an angle equal and opposite to the conical inner leg.
    • 封闭件包括具有大致平坦的底壁(36)的塑料外壳(28或56),用于将封闭件安装在容器颈部表面上的周边裙部(30)和将裙部整体连接到 底壁的周边。 柔性弹性密封衬套(44)设置在环形部分的至少内表面上。 环形部分具有倒置的V形,其外部腿部(42或60)与裙部一体地连接,内部腿部(40或58)整体地连接到底壁的周边,使得底壁轴向地设置在 在内腿和外腿之间的环形连接(43)。 当与容器颈部末端接合时,内腿相对于外腿具有弹性地弹性,以使内腿和底壁相对于裙部向外弯曲,从而将外腿向内拉成与 容器颈部外表面完成。 环形V形部分的内腿优选地是圆锥形的,并且在本公开的示例性实施例中,外腿优选地为圆柱形或圆锥形,优选为与锥形内腿相等和相对的角度。
    • 3. 发明申请
    • CLOSURE LINER FOR HIGH-TEMPERATURE APPLICATIONS
    • 高温应用的封闭衬板
    • WO2008079168A1
    • 2008-07-03
    • PCT/US2007/016106
    • 2007-07-16
    • REXAM CLOSURE SYSTEMS INC.PATCHEAK, Terry, D.
    • PATCHEAK, Terry, D.
    • B65D51/14
    • B65D51/145C08K5/0016C08K5/01C08K5/20C08L23/16C08L53/00C08L2666/24C08L2666/02C08L2666/04
    • A liner for a plastic closure includes styrene-isobutylene-styrene (SIBS) blended with a resin polymer. This resin polymer preferably includes ethylene propylene diene monomer (EPDM rubber). The SIBS preferably is in an amount in the range of 10 to 90% by weight, more preferably 30 to 60% by weight, with an amount of about 46% by weight being particularly preferred. The resin polymer preferably is in an amount in the range of 10 to 90% by weight, more preferably 30 to 50% by weight, with an amount of about 41% by weight being particularly preferred. The EPDM rubber preferably is an elastomeric alloy of EPDM rubber and polypropylene. Mineral oil preferably is present, if at all, in an amount not more than 20% by weight. The liner may include up to 8% by weight process aids such as lubricant and up to 5% compatibilizer by weight.
    • 用于塑料封闭件的衬垫包括与树脂聚合物共混的苯乙烯 - 异丁烯 - 苯乙烯(SIBS)。 该树脂聚合物优选包括乙烯丙烯二烯单体(EPDM橡胶)。 SIBS的含量优选为10〜90重量%,更优选为30〜60重量%,特别优选为约46重量%。 树脂聚合物的量优选为10〜90重量%,更优选为30〜50重量%,特别优选为41重量%左右。 EPDM橡胶优选是EPDM橡胶和聚丙烯的弹性体合金。 优选存在矿物油,如果总量不超过20重量%。 衬里可以包括高达8重量%的加工助剂如润滑剂和最多5重量%的增容剂。