MISCIBLE POLYESTER BLENDS AND SHRINKABLE FILMS PREPARED THEREFROM
    2.
    发明申请
    MISCIBLE POLYESTER BLENDS AND SHRINKABLE FILMS PREPARED THEREFROM 审中-公开
    不可思议的聚酯薄膜和可编织的薄膜

    公开(公告)号:US20090227735A1

    公开(公告)日:2009-09-10

    申请号:US12397624

    申请日:2009-03-04

    IPC分类号: C08L1/08 C08L67/03 C08L3/04

    摘要: Disclosed are polyester blends useful for the preparation of heat-shrinkable films, and heat-shrinkable films prepared therefrom. The heat shrinkable film may be oriented in the machine direction to produce films with high machine-direction shrinkage but low transverse growth or shrinkage. The films are useful for roll-fed, shrink-on label applications. Also disclosed are heat-shrinkable roll-fed labels prepared from reactor-grade polyesters.

    摘要翻译: 公开了可用于制备热收缩膜的聚酯共混物和由其制备的热收缩膜。 热收缩膜可以在机器方向上取向以产生具有高机器方向收缩但低横向生长或收缩的膜。 这些胶片可用于卷筒纸,收缩标签应用。 还公开了由反应器级聚酯制备的热收缩辊式标签。

    Ultraviolet blocking composition for protection of package or container contents
    3.
    发明授权
    Ultraviolet blocking composition for protection of package or container contents 有权
    用于保护包装或容器内容物的紫外阻挡组合物

    公开(公告)号:US07157547B2

    公开(公告)日:2007-01-02

    申请号:US10712606

    申请日:2003-11-13

    IPC分类号: C08G63/02

    摘要: An ultraviolet absorption composition has been developed for the protection of packaging or container contents in the ultraviolet range of 290 nm to 390 nm, offering effective screening from all wavelengths of solar radiation. A combination of an optical brightener with an ultraviolet absorber has been found to provide effective screening without adding significant color to the polymer composition. This extended range of ultraviolet blocking over what can be achieved with ultraviolet absorbers alone is especially valuable in food and drink packaging applications where the contents of the packages need ultraviolet protection to prevent discoloration or development of undesirable flavors.

    摘要翻译: 紫外吸收组合物已被开发用于保护290nm至390nm的紫外范围内的包装或容器内容物,从而提供从所有波长的太阳辐射的有效筛选。 已经发现,荧光增白剂与紫外线吸收剂的组合提供了有效的筛选,而不对聚合物组合物增加显着的颜色。 紫外线吸收剂单独使用的紫外线阻挡范围的扩大范围对于食品和饮料包装应用尤其有用,其中包装的内容物需要紫外线防护以防止不希望的香料的变色或发展。

    Reactor grade copolyesters for shrink film applications
    7.
    发明授权
    Reactor grade copolyesters for shrink film applications 有权
    用于收缩膜应用的反应器级共聚酯

    公开(公告)号:US06362306B1

    公开(公告)日:2002-03-26

    申请号:US09636320

    申请日:2000-08-11

    IPC分类号: C08G63183

    摘要: A reactor grade copolyester composition, as well as a heat-shrinkable film made therefrom, unexpectedly has higher ductility than a multi-component blend of copolyesters with the same monomer concentrations. The reactor grade copolyester composition is made from a diacid component of at least about 90 mole percent and a diol component of (a) about 72 to about 88 mole percent ethylene glycol, about 10 to about 15 mole percent 1,4-cyclohexanedimethanol, and about 2 to about 13 mole percent diethylene glycol, or (b) about 59 to about 77.5 mole percent ethylene glycol, about 15 to about 28 mole percent 1,4-cyclohexane-dimethanol, and about 7.5 to about 13 mole percent diethylene glycol. Further, the heat-shrinkable film may be produced to closely match the shrink characteristics of polyvinyl chloride by varying the amounts of the diol components of the reactor grade copolyester composition. Furthermore, a reactor grade copolyester composition has a b* color value of −1.0 to less than 4.5, wherein the diacid component is at least about 90 mole percent terephthalic acid and the diol component is about 52 to about 88 mole percent ethylene glycol, about 10 to about 28 mole percent 1,4-cyclohexane-dimethanol, and about 2 to about 20 mole percent diethylene glycol.

    摘要翻译: 反应物级共聚酯组合物以及由其制成的热收缩膜意外地具有比具有相同单体浓度的共聚酯的多组分共混物更高的延展性。 反应器级共聚酯组合物由至少约90摩尔%的二酸组分和(a)约72-约88摩尔%乙二醇,约10-约15摩尔%1,4-环己烷二甲醇的二醇组分和 约2至约13摩尔%的二甘醇,或(b)约59至约77.5摩尔%的乙二醇,约15至约28摩尔%的1,4-环己烷二甲醇和约7.5至约13摩尔%的二甘醇。 此外,可以通过改变反应器级共聚酯组合物的二醇组分的量来生产热收缩膜以与聚氯乙烯的收缩特性紧密匹配。 此外,反应器级共聚酯组合物的ab *颜色值为-1.0至小于4.5,其中二酸组分为至少约90摩尔%对苯二甲酸,二醇组分为约52-约88摩尔%乙二醇,约10 至约28摩尔%的1,4-环己烷二甲醇,和约2至约20摩尔%的二甘醇。