利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

38 条记录 (耗时 0.037 秒)

    Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends
    11.
    发明授权
    Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends 失效
    通过聚合物共混物溶剂萃取聚合物组分制备不对称膜

    公开(公告)号：US4868222A

    公开(公告)日：1989-09-19

    申请号：US67321

    申请日：1987-06-29

    申请人： Chieh-Chun Chau ,  Ritchie A. Wessling

    发明人： Chieh-Chun Chau ,  Ritchie A. Wessling

    IPC分类号： B01D67/00 ,  C08J9/00 ,  C08J9/26

    CPC分类号： B01D67/0093 ,  B01D67/003 ,  B01D69/02 ,  C08J9/00 ,  C08J9/26 ,  B01D2323/30 ,  B01D2325/022

    摘要： Asymmetric membranes are prepared by selectively treating a major surface of an incompatible polymer blend prepared by melt blending having at least one extractable polymer component and then contacting the polymer blend with a solvent to extract the extractable polymer component. The treated surface becomes the dense layer of the membrane. The major surface is treated by crosslinking, by contacting the surface with a crosslinking agent which is subsequently cured, or by contacting the surface with an agent which reacts with groups on the surface and imparts a polar character to it.

    摘要翻译： 通过选择性地处理由具有至少一种可提取聚合物组分的熔融共混制备的不相容的聚合物共混物的主表面，然后使聚合物共混物与溶剂接触以提取可萃取的聚合物组分来制备不对称膜。 被处理的表面变成膜的致密层。 主表面通过交联处理，通过使表面与随后固化的交联剂接触，或通过使表面与与表面上的基团反应并赋予其极性特性的试剂接触来处理。

    Process for post-spin finishing of polybenzoxazole fibers
    14.
    发明授权
    Process for post-spin finishing of polybenzoxazole fibers 失效
    聚苯并恶唑纤维的后纺整理工艺

    公开(公告)号：US5417915A

    公开(公告)日：1995-05-23

    申请号：US162724

    申请日：1993-12-03

    申请人： Chieh-Chun Chau ,  Jang-hi Im

    发明人： Chieh-Chun Chau ,  Jang-hi Im

    IPC分类号： D01F6/74 ,  D01F6/26

    CPC分类号： D01F6/74

    摘要： Improved polybenzoxazole fibers are made by a process for drying a wet, coagulated polybenzoxazole (PBO) fiber including the steps of:(a) drying the fiber at a temperature of no more than 300.degree. C. under a tension of at least about 1 gram per denier (gpd) until it retains no more than about 120 weight percent residual moisture content;(b) further drying the fiber at a temperature of no more than 300.degree. C., either with or without tension, until it contains no more than about 20 percent residual moisture content; and(c) heat-treating the fiber at a temperature of at least about 300.degree. C. under tension.

    摘要翻译： 改进的聚苯并恶唑纤维通过干燥湿凝固的聚苯并恶唑（PBO）纤维的方法制备，包括以下步骤：（a）在至少约1克的张力下，在不超过300℃的温度下干燥纤维 （gpd），直到其保持不超过约120重量％的残余水分含量; （b）在不超过300℃的温度下进一步干燥纤维，无论是否具有张力，直到其含有不超过约20％的残余水分含量; 和（c）在张力下在至少约300℃的温度下热处理纤维。

    Methods of making oxygen scavenging articles containing moisture
    17.
    发明授权
    Methods of making oxygen scavenging articles containing moisture 有权
    制造含有水份的除氧制品的方法

    公开(公告)号：US09107442B2

    公开(公告)日：2015-08-18

    申请号：US13240594

    申请日：2011-09-22

    申请人： Chieh-Chun Chau

    发明人： Chieh-Chun Chau

    IPC分类号： A23L3/3436 ,  C09K3/00 ,  B26D1/00

    CPC分类号： B65D81/266 ,  A23L3/3436 ,  B26D1/00 ,  B29C47/0021 ,  B29C47/0057 ,  B29C55/06 ,  B29C55/08 ,  C08J5/18 ,  C08J2300/22

    摘要： An extruded or molded article containing iron based oxygen scavenger, electrolytes, activated carbon, silica gel, or other water absorbing media, and optionally pore formers, is subjected to deformation to create voids or porosity, and subjected to water spraying or dipping to obtain a water activity of 0.4 or higher. The article is placed in a container or package containing oxygen sensitive articles.

    摘要翻译： 包含铁基除氧剂，电解质，活性炭，硅胶或其它吸水介质和任选的成孔剂的挤出或模塑制品经受变形以产生空隙或孔隙，并进行喷水或浸渍以获得 水分活度为0.4以上。 将该物品放置在含有氧敏感物品的容器或包装中。

    CONTROLLED RELEASE OF WATER TO AN OXYGEN SCAVENGER
    20.
    发明申请
    CONTROLLED RELEASE OF WATER TO AN OXYGEN SCAVENGER 有权
    水控制释放到氧气扫描器

    公开(公告)号：US20110278499A1

    公开(公告)日：2011-11-17

    申请号：US12778629

    申请日：2010-05-12

    申请人： George E. McKedy ,  Chieh-Chun Chau ,  Stanislav E. Solovyov

    发明人： George E. McKedy ,  Chieh-Chun Chau ,  Stanislav E. Solovyov

    IPC分类号： C09K15/04 ,  B65D85/00

    CPC分类号： A23L3/3436 ,  B01J20/0229 ,  B01J20/2805 ,  B01J20/3085 ,  B01J20/3433

    摘要： The invention provides an article for oxygen absorption comprising a container containing a water-soluble ion source, an water activated oxygen scavenger, and a rupturable canister of hydrated polymer.The invention provides in another embodiment a method for providing timed or controlled oxygen absorption comprising providing an article for oxygen absorption comprising a container containing a water-soluble ion source, an water activated oxygen scavenger, and a rupturable canister of hydrated polymer, rupturing the canister, whereby the hydrated polymer and water-soluble ion source come in contact and release water, and the water as it is released activates the oxygen scavenger.

    摘要翻译： 本发明提供了一种吸氧制品，包括含有水溶性离子源，水活化氧清除剂和可水解聚合物的可破裂罐的容器。 本发明在另一个实施方案中提供了一种用于提供定时或受控氧吸收的方法，包括提供用于氧吸收的制品，包括含有水溶性离子源，水活化氧清除剂和可破裂的水合聚合物的容器， ，由此水合聚合物和水溶性离子源接触并释放水，并且其释放时的水激活除氧剂。