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    • 4. 发明授权
    • Laminated metal plate for drawn can, and drawn can prepared therefrom
    • 层压金属板,可以制作,可以制作
    • US5137762A
    • 1992-08-11
    • US584022
    • 1990-09-18
    • Masanori AizawaKatsuhiro ImazuTetsuo MiyazawaNobuyuki Satoh
    • Masanori AizawaKatsuhiro ImazuTetsuo MiyazawaNobuyuki Satoh
    • B65D1/12B21D22/20B32B15/08B32B15/09B65D1/28C08J5/12C08J7/04C09J163/00
    • C08J7/047B32B15/08B65D1/28C08J5/125C09J163/00C08J2367/02C08J2463/00Y10T428/1355Y10T428/31515Y10T428/31529Y10T428/31681Y10T428/31786Y10T428/31797
    • Disclosed is a laminated metal plate for a drawn can, which comprises a laminate comprising a base metal, a layer of a film of a polyester composed mainly of ethylene terephthalate units and, if desried, an adhesive primer layer interposed between the base metal and the polyester film layer, wherein the X-ray diffraction intensity ratio, defined by the following formula (I), of the polyester film layer is in the range of from 0.5 to 15:R.sub.X =I.sub.A /I.sub.B (I)wherein R.sub.X represents the X-ray diffraction intensity ratio, I.sub.A represents the X-ray diffraction intensity by the diffraction plane parallel to the surface of the polyester film, which has a spacing of about 0.34 nm (CuK.alpha. X-ray diffraction angle is 24.degree. to 28.degree.), and I.sub.B represents the X-ray diffraction intensity by the diffraction plane parallel to the polyester film surface, which has a spacing of about 0.39 nm (CuK.alpha. X-ray diffraction angle is 21.5.degree. to 24.degree. ).and the in-plane anisotropy index of the crystal of the film layer is less than 30.When this laminated metal plate is subjected to the drawing, cracking or formation of pinholes is prevented, and the laminated metal plate shows excellent formability and corrosion resistance. An excellent drawn can is prepared from this laminated metal plate.
    • 公开了一种用于拉制罐的层压金属板,其包括层压体,其包含基体金属,主要由对苯二甲酸乙二醇酯单元组成的聚酯膜层,如果需要,则介于基体金属和基体金属之间的粘合底漆层 聚酯薄膜层,其中聚酯薄膜层由下式(I)定义的X射线衍射强度比在0.5至15的范围内:RX = IA / IB(I)其中RX表示X 射线衍射强度比,IA表示平行于聚酯膜的表面的衍射面的X射线衍射强度,其间隔为约0.34nm(CuKαX射线衍射角为24°至28°) ,IB表示与聚酯膜表面平行的衍射面的X射线衍射强度,其间隔为约0.39nm(CuKαX射线衍射角为21.5°〜24°)。 并且膜层的晶体的面内各向异性指数小于30.当该层压金属板经受拉伸时,防止了针孔的开裂或形成,并且层压金属板显示出优异的成形性和耐腐蚀性。 从该层压金属板制备出优良的拉伸罐。
    • 9. 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。