摘要:
A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.
摘要:
A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring that supports the container, an upstanding wall, and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion defined in at least part by a pushup and an inversion ring that generally circumscribes the pushup. The pushup and the inversion ring being moveable to accommodate vacuum related forces generated within the container.
摘要:
A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.
摘要:
A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.
摘要:
A container body and base being lightweight structures designed to accommodate vacuum forces either simultaneously or in sequence. The container body and base each absorb a significant percentage of the vacuum. By utilizing a lightweight base design to absorb a portion of the vacuum forces enables an overall light-weighting, design flexibility, and effective utilization of alternative vacuum absorbing capabilities on the container body.
摘要:
A container body and base being lightweight structures designed to accommodate vacuum forces either simultaneously or in sequence. The container body and base each absorb a significant percentage of the vacuum. By utilizing a lightweight base design to absorb a portion of the vacuum forces enables an overall light-weighting, design flexibility, and effective utilization of alternative vacuum absorbing capabilities on the container body.
摘要:
A container having a hydrogen generator and catalyst disposed or otherwise incorporated in components of the container. The container further comprises a system for providing at least a portion of the hydrogen generator and/or catalyst in an area defined within the closure of the container for improved performance.
摘要:
A polyethylene terephthalate container having a hydrogen generator and catalyst disposed or otherwise incorporated in components of the container, including the closure, closure insert, label, label glue, and/or any other portions of the final container assembly. In addition, the catalyst and the hydrogen generator can both be located in the same component. Methods for dispersing the hydrogen generator and catalyst in the container wall without affecting clarity are provided.
摘要:
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.
摘要:
A polyethylene terephthalate container having a hydrogen generator and catalyst disposed or otherwise incorporated in components of the container. The container further comprises an activation system or means for activating the hydrogen generator and/or catalyst system at a predetermined time or in response to a predetermined stimulus.