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    • 6. 发明授权
    • Easily-openable heat-seal lid
    • 易开盖式热封盖
    • US4501375A
    • 1985-02-26
    • US579542
    • 1984-02-13
    • Tadahiko KatsuraKazumi HirotaHiroshi Ueno
    • Tadahiko KatsuraKazumi HirotaHiroshi Ueno
    • B32B1/02B32B7/06B65B20060101B65D20060101B65D5/54B65D5/70B65D17/32B65D17/34B65D17/347B65D17/353B65D17/40B65D51/00B65D75/64B65D77/20F16J13/02
    • B65D17/165B65D17/163
    • Disclosed is an easily-openable heat-seal lid for forming a heat-sealed portion with a vessel proper for sealing the vessel proper, which is composed of a laminate comprising at least an inner surface member of a heat-sealable resin, a metal foil and an outer protecting layer, wherein a score defining a portion to be opened is formed at a part of the lid more central than the peripheral portion to be heat-sealed so that the score extends to the midway of the metal foil in the thickness direction from the outer side, a through hole piercing through the lid is formed on the inner side of the score in the vicinity of the opening-initiating portion of the score, a rivet of an opening tab, which is composed of the inner surface member material and a heat-sealable resin, is inserted through the hole to project to the inner surface side of the lid, the top end portion of said projecting of the rivet is expanded in the plane direction to secure the opening tab, the top end portion of the rivet projected on the inner surface side is sealed and engaged with the inner surface member by heat fusion bonding, and one end portion of the opening tab or the peripheral portion of the inner surface side of the rivet is substantially superimposed on the opening-initiating portion of the score.
    • 公开了一种易于打开的热封盖,用于形成具有用于密封容器本体的适当的容器的热密封部分,该容器由至少包括可热封树脂的内表面构件,金属箔 以及外保护层,其中限定待打开部分的刻痕形成在比要热密封的周边部分更中心的部分处,使得刻痕在厚度方向上延伸到金属箔的中间 从外侧开始,穿过盖的通孔形成在刻痕的开启起始部分附近的刻痕的内侧,开口翼片的铆钉由内表面构件材料 和可热封树脂插入穿过所述孔以突出到所述盖的内表面侧,所述铆钉的所述突出的顶端部在平面方向上膨胀以固定所述开口突出部,所述顶部的顶端部 铆钉 内表面侧的突出部被密封并通过热熔接而与内表面构件接合,并且铆钉的内表面侧的开口翼片的一个端部或者内表面侧的周边部分基本上重叠在开口起始部分上 分数。
    • 7. 发明授权
    • Process for preparation of cans and canned provisions
    • 罐头和罐头设备的制备工艺
    • US4366662A
    • 1983-01-04
    • US162892
    • 1980-06-25
    • Tadahiko KatsuraKazuhisa IshibashiKazumi Hirota
    • Tadahiko KatsuraKazuhisa IshibashiKazumi Hirota
    • B21D51/26B65B7/28
    • B65D7/38B21D51/2676B65B7/2878
    • Disclosed is a process for the preparation of cans which comprises pressing a flexible lid comprising an aluminum foil as a substrate and a heat-sealable resin layer formed on the surface thereof to a metallic can body being formed of a surface-treated ferromagnetic steel plate and having a curl on the edge of an opening in such a positional relation that the curl portion of the can body confronts the resin layer of the lid, and induction-heating the curl portion selectively by a high-frequency induction-heating coil located in the vicinity of the periphery of the curl portion to form a seal between the curl portion and the lid by heat-sealing. According to this process, the curl portion to be heat-sealed is selectively heated, and heat-sealing can be accomplished in a short time while preventing deterioration of a lacquer or sealant. A copolymer of ethylene with a carbonyl group-containing ethylenic monomer, especially an ethylene-vinyl acetate copolymer, which has the surface subjected to the corona discharge treatment, is used as the sealant. A canned provision is prepared by heat-sealing a sealing lid to the curl portion of a can body in the above-mentioned manner, packing a content into the lidded can body and double-seaming another lid to the flange portion of the can body.
    • 公开了一种制备罐的方法,其包括将包含铝箔作为基材的柔性盖和在其表面上形成的可热封树脂层压在由表面处理的铁磁钢板形成的金属罐体上, 在开口的边缘处以卷曲部分与盖体的树脂层相对的位置关系卷曲在开口的边缘上,并且通过位于该盖的高频感应加热线圈选择性地对卷曲部进行感应加热 靠近卷边部分的周边,通过热封形成卷曲部分和盖子之间的密封。 根据该方法,选择性地加热被热密封的卷曲部分,并且可以在短时间内实现热封,同时防止漆或密封剂的劣化。 使用具有进行电晕放电处理的表面的乙烯与含有羰基的乙烯性单体,特别是乙烯 - 乙酸乙烯酯共聚物的共聚物作为密封剂。 通过以上述方式将密封盖热封到罐体的卷曲部分,将内容物包装到有盖罐体中并将另一个盖子双重接合到罐体的凸缘部分来制备罐装设备。
    • 9. 发明授权
    • Retort-sterilizable laminated structure and process for preparation
thereof
    • 蒸煮消毒层压结构及其制备方法
    • US4310578A
    • 1982-01-12
    • US55004
    • 1979-07-05
    • Tadahiko KatsuraKenji SuzukiSenji Ito
    • Tadahiko KatsuraKenji SuzukiSenji Ito
    • B32B15/08
    • B32B15/08Y10T428/1338Y10T428/2826Y10T428/31681Y10T428/31692Y10T428/31913
    • Disclosed is a retort-sterilizable laminated structure comprising an aluminum foil or sheet, a heat-sealable crystalline propylene type resin layer formed on one surface of the aluminum foil or sheet and a heat-resistant resin layer formed on the other surface of the aluminum foil or sheet, wherein the aluminum foil or sheet is heat-fusion-bonded to said crystalline propylene type resin layer through a layer of a modified olefin resin having a degree of crystallization of 15 to 95% and a carbonyl group concentration of 1 to 600 meq/100 g of the polymer, in which the majority of the structural olefin units are propylene units and the minority of the structural olefin units are ethylene units.As the modified olefin polymer, a modified ethylene-propylene copolymer or a blend of a modified propylene type polymer with an ethylene type polymer is preferably employed.
    • 公开了一种包括铝箔或片材的蒸煮灭菌叠层结构,形成在铝箔或片材的一个表面上的可热封的结晶丙烯类树脂层和形成在铝箔的另一个表面上的耐热树脂层 或片材,其中铝箔或片材通过结晶度为15〜95%,羰基浓度为1〜600meq的改性烯烃树脂层与所述结晶丙烯类树脂层热熔接合 / 100g聚合物,其中大部分结构烯烃单元是丙烯单元,少数结构烯烃单元是乙烯单元。 作为改性烯烃聚合物,优选使用改性乙烯 - 丙烯共聚物或改性丙烯类聚合物与乙烯类聚合物的共混物。