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    DEGRADABLE MATERIALS
    4.
    发明申请
    DEGRADABLE MATERIALS 审中-公开
    可降解材料

    公开(公告)号：US20130338271A1

    公开(公告)日：2013-12-19

    申请号：US13994331

    申请日：2011-12-08

    申请人： Michael D. Crandall ,  Rudolf J. Dams ,  Michelle M. Hewitt ,  Ignatius A. Kadoma ,  Siegmund Papp ,  Yong K. Wu ,  Jay M. Jennen ,  Sasha B. Myers

    发明人： Michael D. Crandall ,  Rudolf J. Dams ,  Michelle M. Hewitt ,  Ignatius A. Kadoma ,  Siegmund Papp ,  Yong K. Wu ,  Jay M. Jennen ,  Sasha B. Myers

    IPC分类号： C08L67/04

    CPC分类号： C08L67/04 ,  C08K5/0016 ,  C08L2201/06 ,  C08L2205/02

    摘要： The present disclosure relates to a degradable material comprising (a) from about 60 weight percent to about 97 weight percent of a first material based on the total weight of the degradable material, and (b) from about 3 weight percent to about 40 weight percent of a second material based on the total weight of the degradable material, where the second material is an oligomer comprising lactate and giycolate. In another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a Tg less than 56° C. In still another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a tan delta peak of less than 65° C. It has been surprisingly found that the degradable materials according to the present disclosure provide physical properties that are not inherent to poly lactic acid alone. It has also been surprisingly found that the degradable materials disclosed herein provide improvements with respect to the processability, production costs, flexibility and ductility without decreasing their degradability.

    摘要翻译： 本公开内容涉及可降解材料，其包含（a）基于可降解材料的总重量的约60重量％至约97重量％的第一材料，和（b）约3重量％至约40重量％ 基于可降解材料的总重量的第二种材料，其中第二种材料是包含乳酸盐和双羟萘酸盐的低聚物。 另一方面，本公开提供了一种可降解材料，其包含（a）聚乳酸和（b）包含乳酸盐和木糖苷的低聚物，其中所述可降解材料的Tg小于56℃。另一方面，本发明 公开提供了一种可降解材料，其包含（a）聚乳酸和（b）包含乳酸盐和木糖醇的低聚物，其中所述可降解材料具有小于65℃的tanδ峰值。令人惊奇地发现， 本公开提供了单独聚乳酸不固有的物理性质。 还惊奇地发现，本文公开的可降解材料提供了相对于可加工性，生产成本，柔韧性和延展性而不降低其降解性的改进。

    PLASTICIZED POLYLACTIDE
    5.
    发明申请
    PLASTICIZED POLYLACTIDE 审中-公开
    塑化聚酯

    公开(公告)号：US20120270978A1

    公开(公告)日：2012-10-25

    申请号：US13518123

    申请日：2010-12-22

    申请人： Sasha B. Myers ,  Jay M. Jennen ,  Ronald W. Ausen ,  Terence D. Spawn ,  Kelly S. Anderson ,  John W. Frank

    发明人： Sasha B. Myers ,  Jay M. Jennen ,  Ronald W. Ausen ,  Terence D. Spawn ,  Kelly S. Anderson ,  John W. Frank

    IPC分类号： C08K5/10 ,  B29C47/88 ,  C08L67/04

    CPC分类号： C08K5/11 ,  B29C48/08 ,  B29C48/914 ,  C08L67/04

    摘要： A composition that includes polylactide resin and plasticizer, the plasticizer having a chemical formula: wherein R may be the same or different and wherein at least one R is a branched alkyl group having a carbon chain length of C5 or greater; and R is an H or an acyl group. In another aspect, the invention provides a process for providing an semicrystalline polylactide film, the process including the steps of providing a polylactide composition that includes polylactide resin, nucleating agent, and the foregoing plasticizer. The composition is extruded as a molten sheet which is then cooled to crystallize the polylactide and provide the film.

    摘要翻译： 一种包含聚丙交酯树脂和增塑剂的组合物，所述增塑剂具有以下化学式：其中R可以相同或不同，并且其中至少一个R是碳链长度为C5或更大的支链烷基; 且R为H或酰基。 另一方面，本发明提供了一种提供半结晶聚丙交酯膜的方法，该方法包括提供包含聚丙交酯树脂，成核剂和前述增塑剂的聚丙交酯组合物的步骤。 将组合物作为熔融片材挤出，然后冷却以使聚丙交酯结晶并提供膜。

    METHOD FOR MAKING POLYLACTIDE FILMS
    7.
    发明申请
    METHOD FOR MAKING POLYLACTIDE FILMS 审中-公开
    制备聚酰胺薄膜的方法

    公开(公告)号：US20120211918A1

    公开(公告)日：2012-08-23

    申请号：US13504644

    申请日：2010-11-10

    申请人： Ronald W. Ausen ,  Sasha B. Myers ,  Jay M. Jennen ,  Gary A. Korba ,  Stephen W. Bany

    发明人： Ronald W. Ausen ,  Sasha B. Myers ,  Jay M. Jennen ,  Gary A. Korba ,  Stephen W. Bany

    IPC分类号： B29C47/88 ,  B29C47/14

    CPC分类号： C08J5/18 ,  B29C48/08 ,  B29C48/12 ,  B29C48/13 ,  B29C48/467 ,  B29C48/914 ,  C08J2367/04

    摘要： A method for forming a polylactide film includes the steps (a) through (c). In step (a), a treated tool surface is provided with a release coating. The treated tool surface is maintained at a predetermined temperature of about the glass transition temperature of the polylactide or higher. In step (b) the treated tool surface is contacted with a molten polylactide composition to provide a polylactide film The film is at least partially crystalline, and the crystallinity of the polylactide film is enhanced due to exposure of the molten polylactide composition to the treated tool surface at the predetermined temperature. In step (c) the polylactide film is removed from the treated tool surface. Additionally, a film is provided that is made by the foregoing method, and the film may be formed into an article or a part of an article. In some cases, the article is a disposable garment such as a diaper. In other cases, the article may be a tape made with the foregoing film, where the film includes first and second major surfaces and a layer of adhesive on at least one of the major surfaces.

    摘要翻译： 形成聚丙交酯膜的方法包括步骤（a）至（c）。 在步骤（a）中，经处理的工具表面设置有剥离涂层。 经处理的工具表面保持在约聚丙交酯的玻璃化转变温度或更高的预定温度。 在步骤（b）中，处理后的工具表面与熔融的聚丙交酯组合物接触以提供聚丙交酯膜。该膜至少部分结晶，并且由于熔融的聚丙交酯组合物暴露于经处理的工具，聚丙交酯膜的结晶度增强 表面处于预定温度。 在步骤（c）中，从经处理的工具表面去除聚丙交酯膜。 另外，通过上述方法制成薄膜，并且薄膜可以形成制品或制品的一部分。 在一些情况下，该物品是诸如尿布的一次性衣物。 在其他情况下，制品可以是用上述膜制成的带，其中膜包括第一和第二主表面以及至少一个主表面上的粘合剂层。