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    MELT PROCESSED ANTIMICROBIAL COMPOSITION
    5.
    发明申请
    MELT PROCESSED ANTIMICROBIAL COMPOSITION 审中-公开

    公开(公告)号：WO2012077002A3

    公开(公告)日：2012-06-14

    申请号：PCT/IB2011/054828

    申请日：2011-10-31

    Applicant: KIMBERLY-CLARK WORLDWIDE, INC. ,  WANG, James, H. ,  SHI, Bo ,  LEE, JaeHong ,  TOPOLKARAEV, Vasily, A. ,  SCHOLL, Neil, T. ,  KIM, YoungSook

    Inventor： WANG, James, H. ,  SHI, Bo ,  LEE, JaeHong ,  TOPOLKARAEV, Vasily, A. ,  SCHOLL, Neil, T. ,  KIM, YoungSook

    IPC: A01N65/00 ,  A01N43/04 ,  A61K31/70 ,  A01P1/00

    Abstract: A method for forming a composition that includes mixing an antimicrobially active botanical oil (e.g., thymol, carvacrol, etc.) and a modified starch polymer within a melt blending device (e.g., extruder) is provided. Unlike the problems associated with proteins, the use of starch polymers allows for a greater degree of flexibility in the processing conditions and is still able to achieve good properties in the resulting composition. The present inventors have also discovered that a plasticizer may be employed to facilitate melt processing of the starch, as well as to enhance the ability of the botanical oil to flow into the internal structure of the starch where it can be retained in a stable manner. The composition is also typically generally free of solvents. In this manner, the starch will not generally disperse before use and prematurely release the botanical oil. Due to the water sensitivity of the modified starch, however, it may be subsequently dispersed by moisture when it is desired to release the botanical oil.

    MELT PROCESSED ANTIMICROBIAL COMPOSITION
    6.
    发明申请
    MELT PROCESSED ANTIMICROBIAL COMPOSITION 审中-公开
    熔融加工抗微生物组合物

    公开(公告)号：WO2012077002A2

    公开(公告)日：2012-06-14

    申请号：PCT/IB2011054828

    申请日：2011-10-31

    Applicant: KIMBERLY CLARK CO ,  WANG JAMES H ,  SHI BO ,  LEE JAEHONG ,  TOPOLKARAEV VASILY A ,  SCHOLL NEIL T ,  KIM YOUNGSOOK

    Inventor： WANG JAMES H ,  SHI BO ,  LEE JAEHONG ,  TOPOLKARAEV VASILY A ,  SCHOLL NEIL T ,  KIM YOUNGSOOK

    IPC: A01N65/00 ,  A01N43/04 ,  A01P1/00 ,  A61K31/70

    CPC classification number: A01N31/08 ,  A01N65/00 ,  B29B7/10 ,  B29B7/38 ,  B29B9/06 ,  B29B9/12 ,  B29B9/16 ,  B29C47/00 ,  B29C47/6087 ,  A01N25/10 ,  A01N25/12 ,  A01N25/28 ,  A01N25/34 ,  A01N2300/00 ,  A01N65/08 ,  A01N65/20 ,  A01N65/24 ,  A01N65/28 ,  A01N65/38

    Abstract: A method for forming a composition that includes mixing an antimicrobially active botanical oil (e.g., thymol, carvacrol, etc.) and a modified starch polymer within a melt blending device (e.g., extruder) is provided. Unlike the problems associated with proteins, the use of starch polymers allows for a greater degree of flexibility in the processing conditions and is still able to achieve good properties in the resulting composition. The present inventors have also discovered that a plasticizer may be employed to facilitate melt processing of the starch, as well as to enhance the ability of the botanical oil to flow into the internal structure of the starch where it can be retained in a stable manner. The composition is also typically generally free of solvents. In this manner, the starch will not generally disperse before use and prematurely release the botanical oil. Due to the water sensitivity of the modified starch, however, it may be subsequently dispersed by moisture when it is desired to release the botanical oil.

    Abstract translation: 提供了一种形成组合物的方法，其包括在熔融共混装置（例如挤出机）中混合抗微生物活性植物油（例如百里酚，香芹酚等）和改性淀粉聚合物。 与蛋白质相关的问题不同，淀粉聚合物的使用允许在加工条件下具有更大程度的柔性，并且仍能在所得组合物中获得良好的性能。 本发明人还发现，可以使用增塑剂来促进淀粉的熔融加工，以及提高植物油流入淀粉内部结构的能力，其中它可以以稳定的方式保留。 组合物通常通常也不含溶剂。 以这种方式，淀粉通常不会在使用前分散并且过早地释放植物油。 然而，由于改性淀粉的水敏感性，当需要释放植物油时，随后可以通过水分分散。

    MODIFIED POLYLACTIC ACID FIBERS
    10.
    发明申请
    MODIFIED POLYLACTIC ACID FIBERS 审中-公开
    改性聚乳酸​​纤维

    公开(公告)号：WO2012020335A3

    公开(公告)日：2012-06-07

    申请号：PCT/IB2011053009

    申请日：2011-07-06

    Applicant: KIMBERLY CLARK CO ,  TOPOLKARAEV VASILY A ,  MCENEANY RYAN J ,  EBY TOM ,  LARK TYLER J

    Inventor： TOPOLKARAEV VASILY A ,  MCENEANY RYAN J ,  EBY TOM ,  LARK TYLER J

    IPC: D01F6/92 ,  D01D5/08 ,  D01F1/10 ,  D01F6/62 ,  D04H1/42

    CPC classification number: D01F6/625 ,  B29C47/04 ,  B29K2063/00 ,  B29K2067/046 ,  B29K2105/0005 ,  B29K2995/006 ,  B29K2995/0088 ,  C08G63/08 ,  C08L67/04 ,  C08L2203/12 ,  D01D5/38 ,  D01F1/02 ,  D01F6/92 ,  D04H3/011 ,  D04H3/16 ,  Y10T428/298 ,  Y10T442/608 ,  Y10T442/615 ,  C08L23/0884

    Abstract: A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.

    Abstract translation: 提供了一种形成生物可降解纤维的方法。 该方法包括将聚乳酸与聚环氧化物改性剂共混以形成热塑性组合物，通过模头挤出热塑性组合物，然后使挤出的组合物通过模头形成纤维。 不受理论限制，认为聚环氧化物改性剂与聚乳酸反应并导致其聚合物骨架的支化，由此在纤维纺丝期间改进其熔体强度和稳定性而不显着降低玻璃化转变温度。 反应引起的支化也可以增加分子量，这可能导致纤维延展性改善以及在经受拉伸力时更好地耗散能量的能力。 为了使过早反应最小化，首先将聚乳酸和聚环氧化物改性剂在相对较低的温度下共混在一起。 尽管如此，在共混期间可以使用相对高的剪切速率以诱导聚乳酸骨架的断链，由此使得更多的羟基和/或羧基可用于随后与聚环氧化物改性剂反应。 一旦混合，可以选择在共混组合物的挤出过程中使用的温度以既熔化组合物又引发聚环氧化物改性剂与聚乳酸的羟基和/或羧基的反应。 通过对该方法的选择性控制，本发明人已经发现，所得到的纤维在熔体纺丝期间和之后均可表现出良好的机械性能。

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