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    • 6. 发明授权
    • Laminated draw-formed container having excellent flavor-retentivity and
shock resistance
    • 叠层拉制容器具有优异的香味保持性和抗冲击性
    • US5653357A
    • 1997-08-05
    • US322560
    • 1994-10-13
    • Tetsuo MiyazawaToshio SueKatsuhiro Imazu
    • Tetsuo MiyazawaToshio SueKatsuhiro Imazu
    • B65D8/16B21D22/20B21D22/28B21D51/26B32B15/08B32B15/09B65D1/28B65D25/14B32B1/00
    • B21D51/26B21D22/28B32B15/08B65D1/28
    • A laminated draw-formed container that is obtained by draw-forming a laminated material of a metal plate on which a resin film is laminated into a cup having bottom, wherein said resin film comprises a surface layer of a high molecular oriented copolymerized polyester derived from acid components of 85 to 97% of terephthalic acid and 3 to 15% of isophthalic acid, and a diol component, and a lower layer of a low molecular oriented copolymerized polyester (B) derived from acid components of 84.5 to 96.5% of terephthalic acid and 3.5 to 15.5% of isophthalic acid, the amount of the isophthalic acid being larger than that of the copolymerized polyester (A) of the surface layer, and a diol component, and said surface layer having a double refraction method orientation degree (.DELTA. n) as represented by the following relation,.DELTA. n=n.sub.1 -n.sub.2wherein n.sub.1 is a refractive index in the direction of a maximum orientation of the film, and n.sub.2 is a refractive index in the direction of thickness of the film,which is not smaller than 0.02. The laminated draw-formed container exhibits markedly improved dent resistance and corrosion resistance even after the container is preserved, as well as improved adhesion property and workability, and prevents the adsorption of flavor components and the elution of resin components into the content, making it possible to greatly improve flavor retentivity of the content.
    • 一种叠层拉制容器,其通过将其上层叠有树脂膜的金属板的层压材料层叠到具有底部的杯中而获得,其中所述树脂膜包括来自高分子量的共聚聚酯的表层 85〜97%的对苯二甲酸和3〜15%的间苯二甲酸的酸成分和二醇成分,以及由酸成分得到的低分子量取向共聚聚酯(B)的下层为84.5〜96.5%的对苯二甲酸 和3.5〜15.5%的间苯二甲酸,间苯二甲酸的量大于表层的共聚聚酯(A)的量,以及二醇成分,所述表面层具有双折射方向取向度(DELTA n )如下面的关系所示:DELTA n = n1-n2其中n1是膜最大取向方向的折射率,n2是厚度方向上的折射率 薄膜,不小于0.02。 即使在保持容器之后,层叠拉制容器也具有显着提高的耐凹陷性和耐腐蚀性,以及改进的粘合性和加工性,并且防止了香料成分的吸附和树脂成分的洗脱,使其成为可能 大大提高内容的风味保持性。
    • 10. 发明授权
    • Metal vessel having circumferential side seam
    • 具有圆周侧缝的金属容器
    • US4863063A
    • 1989-09-05
    • US753809
    • 1985-07-09
    • Katsuhiro ImazuMakoto HoriguchiHiroshi MatsubayashiSeishichi KobayashiKazuo TairaHiroshi Ueno
    • Katsuhiro ImazuMakoto HoriguchiHiroshi MatsubayashiSeishichi KobayashiKazuo TairaHiroshi Ueno
    • B65D8/22B21D51/26B21D51/38B65D1/02B65D1/16B65D8/04
    • B65D7/04B21D51/26B21D51/2684Y10S220/906
    • A metal vessel has a metal bottomed cup-shaped lower member and a metal cup-shaped upper member, the upper and lower members being bonded together by a circumferential side seam. The upper member has a pouring mouth having a small diameter in the central portion thereof. The metal vessel is formed by lap-bonding the circumferential open ends of both the upper and lower members. The side wall of the upper member is formed by subjecting a primer-coated tin-plated steel sheet to draw forming at a side wall plastic forming ratio R of from 1.1 to 1.8; the side wall plastic forming ratio R being defined by the following formula: ##EQU1## wherein W stands for the weight (g) of the blank of the upper member, t stands for the thickness (cm) of the blank of the upper member at the side wall, .rho. stands for the density (g/cm.sup.3) of the blank of the upper member, D.sub.0 stands for the inner diameter (cm) of pouring mouth of the upper member, and D.sub.1 stands for the average inner diameter (cm) of the side wall.In the circumferential bonded portion, the side wall of the lower member is bonded to the side wall of the upper member through an organic adhesive interposed between a primer coating applied to the side wall of the lower member and a primer coating applied to the side wall of the upper member. The bonding strength and resistance to leakage of the lap-bonded circumferential side seam are improved.
    • 金属容器具有金属底杯状下部构件和金属杯状上部构件,上部构件和下部构件通过周向侧部接缝结合在一起。 上部构件具有在其中心部分具有小直径的倾倒口。 金属容器通过搭接上部和下部构件的周向开口端而形成。 上部构件的侧壁通过使底漆涂覆的镀锡钢板以1.1至1.8的侧壁塑性成形比R进行拉伸成形而形成; 侧壁塑性成形比R由下式定义:其中W代表上部件坯料的重量(g),t代表上部件坯料厚度(cm) 侧壁rho表示上部件的坯料的密度(g / cm3),D0表示上部件的浇口的内径(cm),D1代表平均内径(cm) 的侧壁。 在周向接合部分中,下部构件的侧壁通过有机粘合剂粘合到上部构件的侧壁,该有机粘合剂介于施加到下部构件的侧壁的底涂层和施加到侧壁的底漆涂层之间 的上部成员。 提高了搭接周向侧接缝的接合强度和耐漏出性。