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公开(公告)号：US20120070592A1
公开(公告)日：2012-03-22
申请号：US13322276
申请日：2010-05-26
CPC分类号： A22C13/0013 , A22C2013/002 , A22C2013/0063 , A22C2013/0096 , C08J3/201 , C08J5/18 , C08J2377/02 , Y10T428/1334
摘要： A method of making a film and the resulting film are disclosed. A matrix polymer comprising at least 20 wt. % nylon-6 is combined with moisture-absorbing particles and mixed in an extensional flow mixer to disperse the moisture-absorbing particles in the matrix polymer. The mixed composition is formed into a film comprising at least 20 wt. % matrix polymer and 1 wt. % moisture-absorbing particles. The film is oriented in at least one direction by a ratio of at least 1.2:1 to provide an unperforated, oriented film having a thickness of at least 20 microns and a water transmission rate of at least 24 g/m2/hr. The film is useful in food casing applications.
摘要翻译： 公开了制造薄膜和所得薄膜的方法。 一种基质聚合物，其包含至少20wt。 ％尼龙-6与吸湿颗粒结合并在延伸流动混合器中混合以将吸湿颗粒分散在基质聚合物中。 将混合的组合物形成为包含至少20重量％ ％基质聚合物和1重量％ ％吸湿颗粒。 薄膜以至少一个方向取向至少1.2:1的比例，以提供厚度至少为20微米，透水率至少为24克/米2 /小时的未穿孔取向膜。 该电影在食品外壳应用中非常有用。
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2.发明授权Process for preparing biologically compatible polymers and their use in medical devices 失效制备生物相容性聚合物的方法及其在医疗器械中的应用
公开(公告)号：US5945457A
公开(公告)日：1999-08-31
申请号：US942571
申请日：1997-10-01
CPC分类号： A61L33/0047 , A61L33/0005 , A61L33/0041 , A61L33/06 , Y10S524/916
摘要： A hemocompatible composition comprising a polymer containing at least one pharmacologic material chemically bonded to a polymer backbone. Such compositions may be obtained by reacting a pharmacologic material with a compound containing a polymerizable group (e.g., an acyl halide) and thereafter either copolymerizing the acylated material with one or more copolymerizable monomers or first irradiating a backbone polymer and thereafter grafting the acylated pharmacologic material onto the irradiated polymer. The resulting products are hemocompatible and may be used in the manufacture of medical devices which come in contact with blood or other bodily fluids. The advantage of chemically bonded pharmacologic materials is that they are not leached out and retain their pharmaceutical effectiveness for a long period of time. The compositions may contain one or more additional pharmacologic materials which are physically admixed with polymers containing bonded pharmacologic materials.
摘要翻译： 一种血液相容性组合物，其包含含有至少一种与聚合物主链化学键合的药理学材料的聚合物。 这样的组合物可以通过使药物材料与含有可聚合基团的化合物（例如酰基卤）反应，然后将酰化物质与一种或多种可共聚单体共聚，或者首先辐照骨架聚合物，然后将酰化药理学材料 到被照射的聚合物上。 所得产品是血液相容性的并且可用于制造与血液或其它体液接触的医疗装置。 化学结合的药理学材料的优点是它们不会被浸出并长期保持其药物有效性。 组合物可以含有一种或多种另外的药物物质，其与含有结合的药理学材料的聚合物物理混合。
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