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    BIODEGRADABLE FIBERS FORMED FROM A THERMOPLASTIC COMPOSITION CONTAINING POLYLACTIC ACID AND A POLYETHER COPOLYMER
    11.
    发明申请
    BIODEGRADABLE FIBERS FORMED FROM A THERMOPLASTIC COMPOSITION CONTAINING POLYLACTIC ACID AND A POLYETHER COPOLYMER 审中-公开
    由含聚乳酸和聚醚共聚物的热塑性组合物形成的可生物降解纤维

    公开(公告)号：WO2009078849A3

    公开(公告)日：2009-10-29

    申请号：PCT/US2007087339

    申请日：2007-12-13

    Applicant: KIMBERLY CLARK CO ,  HE AIMIN ,  TOPOLKARAEV VASILY A

    Inventor： HE AIMIN ,  TOPOLKARAEV VASILY A

    IPC: D01D5/08 ,  D01D5/098 ,  D01F6/92 ,  D01F8/14

    CPC classification number: D01F6/92 ,  D01D5/08 ,  D01D5/0985 ,  D01F8/14 ,  D04H1/4282 ,  D04H1/4326 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/74 ,  D04H3/011 ,  D04H3/016 ,  D04H3/02 ,  D04H13/00 ,  Y10T442/60 ,  Y10T442/68 ,  Y10T442/681

    Abstract: A biodegradable fiber for use in forming a nonwoven web is provided. The fiber is formed from a thermoplastic composition comprising at least one polylactic acid in an amount from about 75 wt.% to about 99 wt.% and at least one polyether copolymer in an amount from about 1 wt.% to about 25 wt.%, wherein the polyether copolymer contains from about 40 mol.% to about 95 mol.% of a repeating unit (A) having the following formula. wherein, x is an integer from 1 to 250, the polyether copolymer further containing from about 5 mol.% to about 60mol.% of a repeating unit (B) having the following formula. wherein, n is an integer from 3 to 20; and y is an integer from 1 to 150. Such polyether copolymers have been found to improve a variety of characteristics of the resulting thermoplastic composition, including its ability to be melt processed into fibers and webs, as well as its sensitivity to moisture.

    Abstract translation: 提供用于形成非织造纤维网的生物可降解纤维。 该纤维由热塑性组合物形成，该热塑性组合物包含约75重量％至约99重量％的至少一种聚乳酸和约1重量％至约25重量％的量的至少一种聚醚共聚物， 其中所述聚醚共聚物含有约40摩尔％至约95摩尔％的具有下式的重复单元（A）。 其中x为1至250的整数，所述聚醚共聚物还包含约5mol％至约60mol％的具有下式的重复单元（B）。 其中，n是3至20的整数; 并且y是1至150的整数。已经发现这种聚醚共聚物改进了所得热塑性组合物的各种特性，包括其被熔融加工成纤维和网状物的能力以及其对湿度的敏感性。

    METHOD FOR FORMING POLYLACTIC ACID FIBERS
    12.
    发明申请
    METHOD FOR FORMING POLYLACTIC ACID FIBERS 审中-公开
    形成聚酰亚胺纤维的方法

    公开(公告)号：WO2009024837A1

    公开(公告)日：2009-02-26

    申请号：PCT/IB2007/053353

    申请日：2007-08-22

    Applicant: KIMBERLY-CLARK WORLDWIDE, INC. ,  HE, Aimin ,  WIDEMAN, Gregory, J. ,  TOPOLKARAEV, Vasily, A.

    Inventor： HE, Aimin ,  WIDEMAN, Gregory, J. ,  TOPOLKARAEV, Vasily, A.

    IPC: D01F6/92

    CPC classification number: D01F6/92 ,  D01F1/10

    Abstract: A method of forming a polylactic acid fiber that involves the use of a macrocyclic ester oligomer to improve the crystallization properties of polylactic acid is provided. Without intending to be limited by theory, it is believed that the macrocyclic ester oligomer undergoes a ring-opening reaction during melt processing and thus converts to a low molecular weight linear crystal structure. These linear crystals may act as a nucleating "seed" for increasing the degree and rate of crystallization of polylactic acid, which improves its ability to be formed into fibers and webs. That is, polymers having a higher degree of melt and crystallization enthalpy are more readily able to bond at higher speeds and also have a lower degree of shrinkage, thereby improving web stability, tensile strength, and web aesthetics.

    Abstract translation: 提供了一种形成包含使用大环酯低聚物以改善聚乳酸的结晶性能的聚乳酸纤维的方法。 不期望受理论的限制，相信大环酯低聚物在熔融加工过程中经历开环反应，因此转化为低分子量线性晶体结构。 这些线性晶体可以作为成核“种子”，用于增加聚乳酸的结晶度和速率，这提高了其形成纤维和纤维网的能力。 也就是说，具有较高熔体和结晶焓的聚合物更容易能够以更高的速度粘合并且还具有较低的收缩率，从而提高幅材稳定性，拉伸强度和纤维网美观性。

    PROTEIN STABILIZED ANTIMICROBIAL COMPOSITION FORMED BY MELT PROCESSING
    13.
    发明申请
    PROTEIN STABILIZED ANTIMICROBIAL COMPOSITION FORMED BY MELT PROCESSING 审中-公开

    公开(公告)号：WO2012077006A3

    公开(公告)日：2012-06-14

    申请号：PCT/IB2011/054839

    申请日：2011-10-31

    Applicant: KIMBERLY-CLARK WORLDWIDE, INC. ,  TOPOLKARAEV, Vasily, A. ,  SCHOLL, Neil, T. ,  LEE, JaeHong ,  AMBROSE, Dianna, L. ,  KIM, YoungSook

    Inventor： TOPOLKARAEV, Vasily, A. ,  SCHOLL, Neil, T. ,  LEE, JaeHong ,  AMBROSE, Dianna, L. ,  KIM, YoungSook

    IPC: A01N65/00 ,  A01N25/02 ,  A01P1/00

    Abstract: A method for forming an antimicrobial composition that includes mixing an antimicrobially active botanical oil (e.g., thymol, carvacrol, etc.) and protein within a melt blending device (e.g., extruder) is provided. Despite the problems normally associated with melt processing proteins, the present inventors have discovered that the processing conditions and components may be selectively controlled to allow for the formation of a stable, melt-processed composition that is able to exhibit good mechanical properties. For example, the extrusion temperature(s) and shear rate employed during melt blending are relatively low to help limit polypeptide dissociation, thereby minimizing the impact of aggregation and embrittlement. While the use of such low temperature/shear conditions often tend to reduce mixing efficiency, the present inventors have discovered that a carrier fluid may be employed to enhance the ability of the botanical oil to flow into the internal structure of the protein where it can be retained in a stable manner. The composition is also typically anhydrous and generally free of solvents. In this manner, the protein will not generally disperse before use and prematurely release the botanical oil.

    PROTEIN STABILIZED ANTIMICROBIAL COMPOSITION FORMED BY MELT PROCESSING
    14.
    发明申请
    PROTEIN STABILIZED ANTIMICROBIAL COMPOSITION FORMED BY MELT PROCESSING 审中-公开
    熔融加工形成的蛋白质稳定抗菌组合物

    公开(公告)号：WO2012077006A2

    公开(公告)日：2012-06-14

    申请号：PCT/IB2011054839

    申请日：2011-10-31

    Applicant: KIMBERLY CLARK CO ,  TOPOLKARAEV VASILY A ,  SCHOLL NEIL T ,  LEE JAEHONG ,  AMBROSE DIANNA L ,  KIM YOUNGSOOK

    Inventor： TOPOLKARAEV VASILY A ,  SCHOLL NEIL T ,  LEE JAEHONG ,  AMBROSE DIANNA L ,  KIM YOUNGSOOK

    IPC: A01N65/00 ,  A01N25/02 ,  A01P1/00

    CPC classification number: A01N25/02 ,  A01N31/08 ,  A01N43/90 ,  A01N65/00 ,  B29B7/42 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/025 ,  B29C47/6056 ,  B29C47/92 ,  B29C2947/92514 ,  B29C2947/926 ,  B29C2947/92704 ,  B29C2947/92828 ,  B29C2947/92876 ,  A01N25/10 ,  A01N25/12 ,  A01N25/28 ,  A01N25/34 ,  A01N2300/00 ,  A01N65/20 ,  A01N65/22 ,  A01N65/44

    Abstract: A method for forming an antimicrobial composition that includes mixing an antimicrobially active botanical oil (e.g., thymol, carvacrol, etc.) and protein within a melt blending device (e.g., extruder) is provided. Despite the problems normally associated with melt processing proteins, the present inventors have discovered that the processing conditions and components may be selectively controlled to allow for the formation of a stable, melt-processed composition that is able to exhibit good mechanical properties. For example, the extrusion temperature(s) and shear rate employed during melt blending are relatively low to help limit polypeptide dissociation, thereby minimizing the impact of aggregation and embrittlement. While the use of such low temperature/shear conditions often tend to reduce mixing efficiency, the present inventors have discovered that a carrier fluid may be employed to enhance the ability of the botanical oil to flow into the internal structure of the protein where it can be retained in a stable manner. The composition is also typically anhydrous and generally free of solvents. In this manner, the protein will not generally disperse before use and prematurely release the botanical oil.

    Abstract translation: 提供了一种形成抗微生物组合物的方法，该方法包括在熔融共混装置（例如挤出机）内混合抗微生物活性植物油（例如百里酚，香芹酚等）和蛋白质。 尽管通常与熔融加工蛋白有关的问题，本发明人已经发现可以选择性地控制加工条件和组分，以形成能够表现出良好机械性能的稳定的熔融加工组合物。 例如，在熔融共混过程中使用的挤出温度和剪切速率相对较低以帮助限制多肽解离，从而使聚集和脆化的影响最小化。 尽管使用这种低温/剪切条件常常倾向于降低混合效率，但是本发明人已经发现载体流体可以用于增强植物油流入蛋白质内部结构中的能力，其中它可以是 保持稳定。 该组合物通常也是无水的并且通常不含溶剂。 以这种方式，蛋白质在使用前通常不会分散并且过早地释放植物油。

    TOUGHENED POLYLACTIC ACID FIBERS
    15.
    发明申请
    TOUGHENED POLYLACTIC ACID FIBERS 审中-公开
    增韧聚酰胺纤维

    公开(公告)号：WO2012020336A2

    公开(公告)日：2012-02-16

    申请号：PCT/IB2011/053010

    申请日：2011-07-06

    Applicant: KIMBERLY-CLARK WORLDWIDE, INC. ,  TOPOLKARAEV, Vasily, A. ,  ZHOU, Peiguang ,  WIDEMAN, Gregory, J. ,  EBY, Tom ,  MCENEANY, Ryan, J.

    Inventor： TOPOLKARAEV, Vasily, A. ,  ZHOU, Peiguang ,  WIDEMAN, Gregory, J. ,  EBY, Tom ,  MCENEANY, Ryan, J.

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

    CPC classification number: D04H3/009 ,  B29K2067/043 ,  B29K2067/046 ,  B29K2105/0088 ,  B29K2995/006 ,  C08L67/04 ,  D01F6/625 ,  D01F6/92 ,  Y10T428/26 ,  Y10T428/298 ,  Y10T442/626 ,  C08L101/00 ,  C08L23/00

    Abstract: Polylactic acid fibers formed from a thermoplastic composition that contains polylactic acid and a polymeric toughening additive are provided. The present inventors have discovered that the specific nature of the components and process by which they are blended may be carefully controlled to achieve a composition having desirable morphological features. More particularly, the toughening additive can be dispersed as discrete physical domains within a continuous phase of the polylactic acid. These domains have a particular size, shape, and distribution such that upon fiber drawing, they absorb energy and become elongated. This allows the resulting composition to exhibit a more pliable and softer behavior than the otherwise rigid polylactic acid. Through selective control over the components and method employed, the present inventors have discovered that the resulting fibers may thus exhibit good mechanical properties, both during and after melt spinning.

    Abstract translation: 提供由含有聚乳酸和聚合物增韧添加剂的热塑性组合物形成的聚乳酸纤维。 本发明人已经发现，可以仔细地控制组分的具体性质和它们混合的方法，以获得具有所需形态特征的组合物。 更具体地，增韧添加剂可以作为离散物理区域分散在聚乳酸的连续相中。 这些区域具有特定的尺寸，形状和分布，使得在纤维拉伸时，它们吸收能量并变细。 这使得所得组合物表现出比其它刚性聚乳酸更柔软和柔软的特性。 通过选择性地控制所使用的组分和方法，本发明人已经发现，所得到的纤维可能在熔融纺丝期间和之后都显示出良好的机械性能。

    POLYLACTIC ACID FIBERS
    17.
    发明申请
    POLYLACTIC ACID FIBERS 审中-公开
    聚酰胺纤维

    公开(公告)号：WO2009145778A1

    公开(公告)日：2009-12-03

    申请号：PCT/US2008/065190

    申请日：2008-05-30

    Applicant: KIMBERLY-CLARK WORLDWIDE, INC. ,  MCENEANY, Ryan, James ,  TOPOLKARAEV, Vasily, A. ,  HE, Aimin

    Inventor： MCENEANY, Ryan, James ,  TOPOLKARAEV, Vasily, A. ,  HE, Aimin

    IPC: D01F6/92 ,  D01F6/62

    CPC classification number: D01F6/92 ,  D01F1/10 ,  D01F6/625 ,  D04H1/435 ,  D04H3/011 ,  D04H3/16 ,  Y10T442/60 ,  Y10T442/659 ,  Y10T442/68 ,  Y10T442/681

    Abstract: A biodegradable fiber that is formed from a thermoplastic composition that contains polylactic acid, a plasticizer, and a compatibilizer is provided. The compatibilizer includes a polymer that is modified with a polar compound that is compatible with the plasticizer and a non-polar component provided by the polymer backbone that is compatible with polylactic acid. Such functionalized polymers may thus stabilize each of the polymer phases and reduce plasticizer migration. By reducing the plasticizer migration, the composition may remain ductile and soft. Further, addition of the functionalized polymer may also promote improved bonding and initiate crystallization faster than conventional polylactic acid fibers. The polar compound includes an organic acid, an anhydride of an organic acid, an amide of an organic acid, or a combination thereof. Such compounds are believed to be more compatible with the generally acidic nature of the polylactic acid fibers.

    Abstract translation: 提供由含有聚乳酸，增塑剂和增容剂的热塑性组合物形成的生物可降解纤维。 增容剂包括用与增塑剂相容的极性化合物改性的聚合物和由与聚乳酸相容的聚合物主链提供的非极性组分。 这样的官能化聚合物因此可以稳定每个聚合物相并减少增塑剂迁移。 通过减少增塑剂迁移，组合物可保持延展性和柔软性。 此外，官能化聚合物的添加还可以促进改进的粘合并且比常规聚乳酸纤维更快地引发结晶。 极性化合物包括有机酸，有机酸的酸酐，有机酸的酰胺或其组合。 据信这些化合物与聚乳酸纤维的普遍酸性特性更相容。

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