Easily openable sealed container
    23.
    发明授权
    Easily openable sealed container 失效
    易开封密封容器

    公开(公告)号:US4915289A

    公开(公告)日:1990-04-10

    申请号:US354315

    申请日:1989-03-08

    IPC分类号: B65D33/00 B65D77/20 B65D77/38

    摘要: A container composed of a plurality of container materials the opposing parts of which are sealed by heat sealing, wherein at least an opening start part of the sealed portion is of a laminated structure consisting of the plurality of container materials and an intermediate material inserted therebetween. The intermediate material and one of the container materials are tightly sealed, and the intermediate material and another of the container materials are sealed easily peelably. The inside end edge of the easily peelable seal portion is positioned more toward the center of the container than the inside end edge of the tight seal portion. At an opening start position, the outside end edge of the easily peelable seal portion is positioned more toward the center of the container than the outside end edge of the tight seal portion, and the intermediate material is provided so as to jut outwwardly of a heat sealing flat portion of a container flange. The strength of peeling of this sealed container from its central side is high enough to withstand retorting or the like, and opening of the container from outside can be effected by hand accurately and stably.

    Easily-openable closure for seamed can
    24.
    发明授权
    Easily-openable closure for seamed can 失效
    易于开封的缝合罐

    公开(公告)号:US4773558A

    公开(公告)日:1988-09-27

    申请号:US18547

    申请日:1987-02-25

    IPC分类号: B65D17/34 C08G69/36

    CPC分类号: B65D17/163 C08G69/36

    摘要: An easily openable closure adapted to be fixed to a can body by seaming. The closure comprises a closure body of a rigid metallic material, a score formed therein reaching halfways in the thickness direction of the metallic closure body for defining a portion to be opened, and an opening tab provided near a score shearing starting point through a bonding support. The bonding support is comprised of a polyamide-type adhesive containing 6.1 to 15.0 main-chain carbon atoms on an average per amide group and having a crystallinity of 15 to 40% and a dynamic modulus, determined at a temperature of 25.degree. C. and a relative humidity of not more than 30%, of 0.8.times.10.sup.10 to 3.3.times.10 .sup.10 dynes/cm.sup.2.

    摘要翻译: 适于通过接缝固定到罐身上的容易打开的封闭件。 闭合件包括刚性金属材料的封闭体,其中形成的刻痕在金属封闭体的厚度方向上半部分形成,用于限定待打开的部分,以及设置在分数剪切起始点附近通过粘合支撑件 。 粘合载体由平均每个酰胺基含有6.1至15.0个主链碳原子并具有15至40%的结晶度和在25℃温度下确定的动态模量的聚酰胺型粘合剂组成, 相对湿度不大于30%,为0.8×10 10至3.3×10 10达因/ cm 2。

    Welded can and process for preparation thereof
    26.
    发明授权
    Welded can and process for preparation thereof 失效
    焊接罐及其制备方法

    公开(公告)号:US4477501A

    公开(公告)日:1984-10-16

    申请号:US443213

    申请日:1982-11-19

    摘要: Disclosed is a coated welded can having a metal-exposed face inclusive of a seam covered with a coating, wherein the coating comprises at least one organic resin coating layer and at least one metal film, and at least the portion of the organic resin coating that adheres to the metal-exposed face is comprised of a copolymer of ethylene with a carbonyl group-containing, ethylenically unsaturated monomer or a blend containing this copolymer.In this coated welded can, the adhesion of the coating, the corrosion resistance of the seam and the appearance characteristics of the seam are highly improved. Furthermore, the coating of this welded can is not damaged by such processing as flanging, beading or double-seaming or when the welded can is subjected to the retort sterilization.

    摘要翻译: 公开了一种具有金属暴露面的涂覆焊接罐,其包括覆盖有涂层的接缝,其中所述涂层包括至少一个有机树脂涂层和至少一个金属膜,并且所述有机树脂涂层的至少一部分 粘附到金属暴露面上由乙烯与含羰基的烯属不饱和单体的共聚物或含有该共聚物的共混物组成。 在这种涂层焊接罐中,涂层的附着力,接缝的耐腐蚀性和接缝的外观特性得到了很大的改善。 此外,这种焊接的罐的涂层不会受到诸如凸缘,珠粒或双重接缝之类的处理或当焊接罐进行蒸煮灭菌时的损坏。