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    Multi-layer blow molded container and process for preparation thereof
    5.
    发明授权
    Multi-layer blow molded container and process for preparation thereof 失效
    多层吹塑容器及其制备方法

    公开(公告)号：US4079850A

    公开(公告)日：1978-03-21

    申请号：US551388

    申请日：1975-02-21

    申请人： Toru Suzuki ,  Shunsaku Hirata ,  Jinichi Yazaki ,  Shinichi Miyazaki ,  Shigezo Nohara

    发明人： Toru Suzuki ,  Shunsaku Hirata ,  Jinichi Yazaki ,  Shinichi Miyazaki ,  Shigezo Nohara

    IPC分类号： B29C49/22 ,  B65D1/02 ,  B65D23/00 ,  B29C17/06

    CPC分类号： B29C49/22 ,  B65D1/0215 ,  B29B2911/14653 ,  B29B2911/14713 ,  B29B2911/1478 ,  Y10S220/14 ,  Y10T428/1383 ,  Y10T428/24628 ,  Y10T428/31746 ,  Y10T428/31797 ,  Y10T428/31913

    摘要： In a multi-layer blow molded container having a joint portion at least in the bottom portion thereof, barrier characteristics to gases such as oxygen and water vapor and liquids such as water, solvents, aqueous ammonia and salt water and interlaminar strength characteristics such as interlaminar adhesion strength, peel strength and impact strength in the content-filled state can be highly improved by blow molding a parison of a laminate structure of two or more polymer layers in which the polymer composition is different with respect to the thickness direction of the container wall but substantially identical with respect to the plane direction and each of the polymer layers is continuous with respect to the plane direction, in such a manner that a tapered projection protruding outwardly in the thickness direction of the container wall is formed in the joint portion so that each of the polymer layers is substantially continuous in this joint portion. This improved container can easily be prepared according to the customary blow molding technique by using a pair of split molds having such a configuration that a tapered concave groove is formed in the section pinching off the parison when the molds are registered with each other.

    摘要翻译： 在具有至少在其底部的接合部分的多层吹塑容器中，气体如氧气和水蒸气的阻挡特性以及水，溶剂，氨水和盐水等液体和层间强度特性如层间 通过将聚合物组合物相对于容器壁的厚度方向不同的两个或更多个聚合物层的叠层结构的型坯吹塑成型，可以大大提高填充内容物中的粘合强度，剥离强度和冲击强度 但是相对于平面方向基本上相同，并且每个聚合物层相对于平面方向是连续的，使得在接合部分中形成在容器壁的厚度方向上向外突出的锥形突起，使得 每个聚合物层在该接合部分中基本连续。 这种改进的容器可以根据传统的吹塑技术容易地通过使用一对分开模具来制备，所述分开模具具有这样的构造，即当模具彼此登记时，在挤压型坯的截面中形成锥形凹槽。

    Polyester vessel having improved dimension stability and process for preparation thereof
    7.
    发明授权
    Polyester vessel having improved dimension stability and process for preparation thereof 失效
    具有改进的尺寸稳定性的聚酯容器及其制备方法

    公开(公告)号：US4751120A

    公开(公告)日：1988-06-14

    申请号：US14255

    申请日：1987-02-11

    申请人： Jinichi Yazaki ,  Kozaburo Sakano

    发明人： Jinichi Yazaki ,  Kozaburo Sakano

    IPC分类号： B32B27/32 ,  B65D23/08 ,  B65D3/06

    CPC分类号： B32B27/32 ,  Y10T428/1352 ,  Y10T428/1383 ,  Y10T428/31736 ,  Y10T428/31794 ,  Y10T428/31797

    摘要： In a thermoplastic polyester, a compound having at least two ethylenically unsaturated groups and/or oxirane rings in one molecule is coated as a crosslinking agent on the outer surface of the polyester substrate, or a polyester composition containing this crosslinking agent is laminated on the polyester substrate as the inner surface layer, and the crosslinking agent or the crosslinking agent-containing polyester composition is irradiated with ionizing radiant rays or ultraviolet rays. In this processed vessel, the dimension stability and rigidity are highly improved, and deformation under heat and/or pressure can be effectively prevented.

    摘要翻译： 在热塑性聚酯中，在一个分子中具有至少两个烯键式不饱和基团和/或环氧乙烷环的化合物作为交联剂涂布在聚酯基材的外表面上，或将含该交联剂的聚酯组合物层压在聚酯 作为内表面层的基材，交联剂或含交联剂的聚酯组合物用电离辐射线或紫外线照射。 在该处理容器中，尺寸稳定性和刚性得到很大改善，并且可以有效地防止在加热和/或压力下的变形。

    Process for recovering terephthalic acid from pulverized product of spent polyethylene terephthalate and system for use in such process
    9.
    发明授权
    Process for recovering terephthalic acid from pulverized product of spent polyethylene terephthalate and system for use in such process 失效
    从废聚对苯二甲酸乙二醇酯的粉碎产物中回收对苯二甲酸的方法和用于该方法的体系

    公开(公告)号：US07173150B2

    公开(公告)日：2007-02-06

    申请号：US10424042

    申请日：2003-04-24

    申请人： Jinichi Yazaki ,  Kozaburo Sakano ,  Nobuyuki Funakoshi ,  Kazuho Tanaka

    发明人： Jinichi Yazaki ,  Kozaburo Sakano ,  Nobuyuki Funakoshi ,  Kazuho Tanaka

    IPC分类号： C07C51/09

    CPC分类号： C07C51/43 ,  C07C51/09 ,  C07C51/412 ,  C07C51/47 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/706 ,  C07C63/28 ,  C07C63/26

    摘要： This invention provides a process a process for recovering terephthalic acid from pulverized products of spent polyethylene terephthalate. This process comprises (1) a decomposition reaction step where the pulverized products of spent polyethylene terephthalate are continuously subjected to decomposition reaction in ethylene glycol in the presence of alkali, which is equimolar or excessmolar relative to the polyethylene terephthalate, so that salt of terephthalic acid and ethylene glycol can be continuously obtained; (2) a solid-liquid separation, dissolution, impurities-removing step where the ethylene glycol is separated from decomposition reaction slurry of salt of terephthalic acid and ethylene glycol, and the solid salt of terephthalic acid is dissolved into water, while insoluble impurities are removed; (3) a neutralization, crystallization step, where solution of said salt of terephthalic acid is neutralized with acid so that terephthalic acid can be crystallized; (4) a solid-liquid separation, washing stop where slurry of terephthalic acid crystals is subjected to solid-liquid separation so that the terephthalic acid crystals can be obtained and washed; and (5) a drying, pulverization step where the washed terephthalic acid crystals are dried and pulverized.

    摘要翻译： 本发明提供一种从废聚对苯二甲酸乙二醇酯的粉碎产物中回收对苯二甲酸的方法。 该方法包括：（1）分解反应步骤，其中废聚对苯二甲酸乙二醇酯的粉碎产物在相对于聚对苯二甲酸乙二醇酯等摩尔或过量的碱的存在下在乙二醇中连续进行分解反应，使得对苯二甲酸的盐 可连续获得乙二醇; （2）从对苯二甲酸和乙二醇盐的分解反应浆液中分离出乙二醇和对苯二甲酸的固体盐的固液分离，溶解，杂质去除步骤溶解在水中，不溶性杂质为 删除 （3）中和，结晶步骤，其中所述对苯二甲酸盐的溶液用酸中和，使对苯二甲酸可以结晶; （4）固液分离，其中对苯二甲酸晶体的浆液进行固液分离以使得可以获得和洗涤对苯二甲酸晶体的洗涤停止; 和（5）干燥，粉碎步骤，其中将洗涤的对苯二甲酸晶体干燥并粉碎。