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    • 119. 发明授权
    • Valves for sterilizable flat flexible containers and process for their
manufacture
    • 可灭菌扁平柔性容器的阀门及其制造工艺
    • US4467003A
    • 1984-08-21
    • US332343
    • 1981-12-18
    • Francesco PallaroniLuciano BaldiniAlberto Siccardi
    • Francesco PallaroniLuciano BaldiniAlberto Siccardi
    • A61J1/00A61J1/14B65B55/02B65D30/24B65D75/52B32B25/12B32B27/06B32B27/34
    • B65D75/52B65B55/02B65D31/14A61J1/1406Y10T156/1052Y10T156/108Y10T428/214Y10T428/23Y10T428/233Y10T428/31725Y10T428/31739Y10T428/31743Y10T428/3175Y10T428/31826
    • A method of preparation of valves for a flat, flexible, sterilizable container capable of sterilely containing a liquid to be removed under absolutely sterile conditions which comprises the steps of:forming a two-layer laminate including a first layer of a copolymer of ethylene with a minor proportion of butylene and a second layer of an amide polymer; forming a pocket in the two-layer laminate wherein the first layer forms the inner surface of the pocket; providing an elastomeric core element having spaced major faces; inserting the core element into the pocket in the two-layer laminate; providing a three-layer laminate including a first outer layer of a major portion of a propylene polymer, a second outer layer of a copolymer of ethylene with a minor proportion of butylene, and an intermediate layer of an amide polymer; orienting the three-layer laminate so that the second outer layer thereof is apposed to the first layer of the two-layer laminate; expelling air surrounding the core element in the pocket; welding contacting portions of the two- and three-layer laminates to each other and bonding the second outer layer of the three-layer laminate to one of the major faces of the core element and the first layer of said the two-layer laminate to the other major face of the core element and; cutting through the two- and the three-layer laminates in the region of the weld at a distance removed from the core element, whereby a circular area of the weld remains around the core element.
    • 一种制备用于无菌地包含要在绝对无菌条件下被去除的液体的扁平,柔性,可消毒的容器的阀的方法,该方法包括以下步骤:形成双层层压材料,其包括第一层乙烯共聚物与 较小比例的丁烯和第二层酰胺聚合物; 在所述双层层压体中形成袋,其中所述第一层形成所述袋的内表面; 提供具有间隔开的主面的弹性体芯元件; 将芯元件插入双层层压板中的袋中; 提供包括丙烯聚合物的主要部分的第一外层和乙烯与少量丁烯的共聚物的第二外层和酰胺聚合物的中间层的三层层压体; 使三层层叠体定向,使其第二外层附着到双层层压体的第一层; 排出围绕口袋中的核心元件的空气; 将所述两层和三层层压体的接触部分彼此焊接并将所述三层层压体的第二外层与所述芯体的主要表面和所述两层层压体的第一层粘合到 核心要素的其他主要面孔; 在与芯体元件相距一定距离处的焊缝区域中切割两层和三层层压板,由此焊缝的圆形区域保留在芯体周围。
    • 120. 发明授权
    • Wear-resistant rubber product and a method of making same
    • 耐磨橡胶制品及其制造方法
    • US4446192A
    • 1984-05-01
    • US261226
    • 1981-07-16
    • Bengt L. A. Dehlen
    • Bengt L. A. Dehlen
    • B02C17/22B29C45/14B32B25/04B32B25/08
    • B02C17/225Y10S241/30Y10T428/269Y10T428/31569Y10T428/31587Y10T428/31826Y10T428/3183
    • A wear-resistant rubber product adapted to be used as, for example, a lifter in grinding mills, comprises at least two prefabricated parts (11, 12) interconnected with one another by means of a binder layer having a thickness of at least 2 mm and consisting of in situ cast and cured polyurethane. The wear-resistant rubber product is manufactured by placing the prefabricated cured rubber parts (11, 12) at a distance of at least 2 mm from one another and by introducing, preferably injecting a reacting urethane rubber composition with excess isocyanate groups into the gap (13) to cause said prefabricated parts on either side of said gap to be contacted subtantially simultaneously by the said urethane rubber composition.
    • PCT No.PCT / SE80 / 00266 Sec。 371日期1981年7月16日 102(e)日期1981年4月27日PCT提交1980年10月30日PCT公布。 公开号WO81 / 01253 日期:1981年5月14日。适用于例如在研磨机中的升降机的耐磨橡胶制品包括至少两个通过粘合剂层互相连接的预制部件(11,12),所述粘结剂层具有 厚度至少为2mm,由原位浇铸和固化的聚氨酯组成。 耐磨橡胶制品通过将预制的固化橡胶部分(11,12)彼此置于至少2mm的距离处,并且优选地将具有过量异氰酸酯基团的反应性聚氨酯橡胶组合物引入到间隙中 13)使所述间隙的任一侧的所述预制部件被所述聚氨酯橡胶组合物同时接触。