Biaxially oriented polyester film to be laminated onto metal plate and molded
    1.
    发明授权
    Biaxially oriented polyester film to be laminated onto metal plate and molded 失效
    将双轴取向的聚酯薄膜层压在金属板上并成型

    公开(公告)号:US06472046B1

    公开(公告)日:2002-10-29

    申请号:US09367593

    申请日:1999-08-18

    IPC分类号: B32B516

    摘要: A biaxially oriented polyester film to be laminated onto a metal plate and molded, (A) which comprises a copolyester comprising (a) terephthalic acid in an amount of 82 to 100 mol % and 2,6-naphthalenedicarboxylic acid or a combination of 2,6-naphthalenedicarboxylic acid and other dicarboxylic acid in an amount of 0 to 18 mol % of the total of all dicarboxylic acid components and (b) ethylene glycol in an amount of 82 to 100 mol % and cyclohexanedimethanol or a combination of cyclohexanedimethanol and other diol in an amount of 0 to 18 mol % of the total of all diol components, having (c) a glass transition temperature of 78° C. or more and (d) a melting point of 210 to 250° C., and containing (e) porous silica particles with a pore volume of 0.5 to 2.0 ml/g which are agglomerates of primary particles having an average particle diameter of 0.001 to 0.1 &mgr;m; and (B) which has the following relationship between the highest peak temperature (Te, °C.) of loss elastic modulus and the glass transition temperature (Tg, °C.): Te−Tg≦30. This film has improved taste-and-flavor retainabilities, particularly taste and flavor retainabilities after a retort treatment, without losing the excellent moldability, heat resistance, impact resistance and retort resistance of a copolyester film.

    摘要翻译: 将层压在金属板上并成型的双轴取向聚酯膜(A),其包含共聚酯,该共聚酯包含(a)82〜100摩尔%的对苯二甲酸和2,6-萘二羧酸或2〜 (b)82〜100摩尔%的乙二醇和环己烷二甲醇或环己烷二甲醇与其他二醇的组合的量为0〜18摩尔%的二羧酸和6-萘二羧酸 (c)玻璃化转变温度为78℃以上,(d)熔点为210〜250℃,含有( e)孔体积为0.5〜2.0ml / g的多孔二氧化硅粒子,其为平均粒径为0.001〜0.1μm的一次粒子的凝聚体; 和(B),其在损耗弹性模量的最高峰值温度(Te,℃)与玻璃化转变温度(Tg,℃)之间具有以下关系:Te-Tg <= 30。 该膜具有改善的口味和味道保留性,特别是在蒸煮处理后的味道和风味保持性,而不失去共聚聚酯薄膜的优异成型性,耐热性,耐冲击性和耐蒸煮性。

    Laminated polyester film to be laminated on metal plate
    3.
    发明授权
    Laminated polyester film to be laminated on metal plate 失效
    复合聚酯薄膜层压在金属板上

    公开(公告)号:US5874163A

    公开(公告)日:1999-02-23

    申请号:US872939

    申请日:1997-06-11

    摘要: A laminated polyester film comprises: a first layer formed of a first aromatic copolymer having a terminal carboxyl group centration of 10 to 35 equivalent/10.sup.6 g; and a second layer of a molten blend having a terminal carboxyl group concentration of 40 to 80 equivalent/10.sup.6 g, which comprises a second aromatic polyester containing ethylene terephthalate as a main recurring unit and a third aromatic polyester containing tetramethylene terephthalate as a main recurring unit. The laminated polyester film exhibits excellent moldability when a metal plate laminated therewith is deep drawn, and is excellent in impact resistance and flavor retaining property after can making.

    摘要翻译: 叠层聚酯膜包括:由具有10-35重量%的末端羧基浓度的第一芳族共聚物形成的第一层/ 106g; 和末端羧基浓度为40〜80当量/ 106g的熔融共混物的第二层,其包含含有对苯二甲酸乙二醇酯作为主要重复单元的第二芳族聚酯和含有对苯二甲酸1,4-丁二醇酯作为主要重复单元的第三芳族聚酯 。 叠层聚酯薄膜在将其层叠的金属板进行深拉伸时具有优异的成型性,并且在制造后具有优异的耐冲击性和香味保持性。

    Biaxially oriented polyester film to be molded and laminated on metal sheet
    4.
    发明授权
    Biaxially oriented polyester film to be molded and laminated on metal sheet 失效
    双轴取向聚酯薄膜被模制和层压在金属板上

    公开(公告)号:US06372326B1

    公开(公告)日:2002-04-16

    申请号:US09647097

    申请日:2000-09-26

    IPC分类号: B32B1508

    摘要: A biaxially oriented polyester film to be molded and laminated with a metal sheet which shows excellent moldability when it is laminated with a metal sheet and subjected to a can making process such as drawing and from which a metal can such as a drink can or food can having excellent heat resistance, retort resistance, taste and odor retention properties, impact resistance and corrosion preventing properties can be produced. This polyester film is produced from a copolyester which contains porous particles having an average particle diameter of 0.1 to 2.5 &mgr;m, a pore volume of 0.05 to 2.5 ml/g, a specific surface area of 50 to 600 m2/g and a compressive resistance of 1 to 100 MPa and has a glass transition temperature of 70° C. or higher and lower than 78° C., a melting point of 210 to 250° C. and an intrinsic viscosity of 0.50 to 0.80 dl/g.

    摘要翻译: 一种双轴取向聚酯薄膜,其与金属薄片成型并层叠,当与金属薄片层合时,其具有优异的成型性,并进行诸如拉伸等罐头制造工艺和诸如饮料罐等金属罐或食品罐 具有优异的耐热性,耐蒸煮性,味道和气味保持性,耐冲击性和耐腐蚀性能。 该聚酯薄膜由含有平均粒径为0.1〜2.5μm,孔体积为0.05〜2.5ml / g,比表面积为50〜600m 2 / g的多孔粒子,50〜600m 2 / g的耐压性, 1〜100MPa,玻璃化转变温度为70℃以上且低于78℃,熔点为210〜250℃,特性粘度为0.50〜0.80dl / g。