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    Method for producing gas barrier film
    1.
    发明授权
    Method for producing gas barrier film 有权
    阻气膜的制造方法

    公开(公告)号：US06364987B1

    公开(公告)日：2002-04-02

    申请号：US09517004

    申请日：2000-02-28

    申请人： Shigeki Takada ,  Sadahiko Shiraga

    发明人： Shigeki Takada ,  Sadahiko Shiraga

    IPC分类号： B29C4706

    CPC分类号： B29C55/026 ,  B29C47/00 ,  B29C47/0021 ,  B29K2029/04

    摘要： Provided is a method for producing gas barrier film, in which the coating film produced has excellent, oxygen gas barrier properties and is influenced little by moisture. The method comprises extruding a polyvinyl alcohol which contains not more than 19 mol % of &agr;-olefin units with not more than 4 carbon atoms, onto a substrate film, then stretching it at least 3-fold and subjecting it to heat treatment at a temperature not lower than 120° C.

    摘要翻译： 提供一种阻气膜的制造方法，其中所制备的涂膜具有优异的氧气阻隔性，并且几乎不受水分的影响。 该方法包括将含有不多于19摩尔％的不超过4个碳原子的α-烯烃单元的聚乙烯醇挤出到基材膜上，然后将其拉伸至少3倍，并在温度下进行热处理 不低于120℃

    Paper coating agent
    3.
    发明授权
    Paper coating agent 失效
    纸张涂布剂

    公开(公告)号：US5885720A

    公开(公告)日：1999-03-23

    申请号：US974978

    申请日：1997-11-20

    申请人： Naoki Fujiwara ,  Sadahiko Shiraga ,  Kazuhiko Ootake ,  Toshiaki Sato

    发明人： Naoki Fujiwara ,  Sadahiko Shiraga ,  Kazuhiko Ootake ,  Toshiaki Sato

    IPC分类号： D21H19/12 ,  B32B23/08

    CPC分类号： D21H19/12 ,  Y10T428/31895

    摘要： Disclosed herein is a paper coating agent which comprises a modified polyvinyl alcohol (A) containing 3 to 15 mol % of ethylene units and an alkali metal ion (B), with the ratio of component (A) to component (B) being 100:0.003 to 100:1 in parts by weight. Disclosed also herein is a heat-sensitive recording material which comprises a coating layer on a substrate, said coating layer comprising a modified polyvinyl alcohol containing 3 to 15 mol % of ethylene units.The paper coating agent of the present invention has such excellent solubility in boiling water that there is not a problem of insoluble matter in an aqueous solution of the coating agent. When applied for a paper surface coating agent, it gives coated paper without discoloration, superior, in surface strength, air barrier properties, and printability. When applied for a paper pigmented coating agent, it gives coated paper without discoloration, superior in water resistance and printability.The heat-sensitive recording material of the present invention is superior in color developing sensitivity, water resistance, oil resistance, plasticizer resistance, and PVC film resistance. Furthermore it is superior in high-speed printability and image resolution, and it can be used in the field, such as facsimile, where high-speed printing is required.

    摘要翻译： 本文公开了一种纸涂层剂，其包含含有3至15mol％的乙烯单元和碱金属离子（B）的改性聚乙烯醇（A），组分（A）与组分（B）的比例为100： 0.003〜100:1重量份。 本文还公开了一种热敏记录材料，其包括在基材上的涂层，所述涂层包含含有3至15mol％乙烯单元的改性聚乙烯醇。 本发明的纸张涂布剂在沸水中的溶解性优异，在涂布剂的水溶液中不存在不溶物质的问题。 当涂布纸表面涂层剂时，它可以使涂布纸无变色，表面强度，空气阻隔性和可印刷性优异。 当涂布纸颜料涂布剂时，其涂布纸不变色，耐水性和印刷性优异。 本发明的热敏记录材料的显色灵敏度，耐水性，耐油性，耐增塑剂性和耐PVC膜性优异。 此外，它在高速可打印性和图像分辨率方面是优越的，并且可以在诸如需要高速打印的传真机等领域中使用。