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    DEGRADABLE MATERIALS
    9.
    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。