Methods for making polylactic acid stereocomplex fibers
    3.
    发明申请
    Methods for making polylactic acid stereocomplex fibers 有权
    制备聚乳酸立体络合纤维的方法

    公开(公告)号:US20100308494A1

    公开(公告)日:2010-12-09

    申请号:US12679365

    申请日:2008-09-26

    IPC分类号: B29C47/08

    CPC分类号: D01D5/088 D01D10/02 D01F6/92

    摘要: PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment introduces high-melting “stereocomplex” crystallinity into the fibers. The process can form fibers having a high content of “stereocomplex” crystallites that have a high melting temperature. As a result, the fibers have excellent thermal resistance. The process is also easily adaptable to commercial melt spinning operations.

    摘要翻译: PLA立体复合纤维通过分开熔融高D PLA起始树脂和高-L起始树脂,混合熔体并纺丝熔融混合物而制成。 随后的热处理将高熔点的“立体复合物”结晶引入纤维中。 该方法可以形成具有高含量的具有高熔点的“立体络合物”晶体的纤维。 结果,纤维具有优异的耐热性。 该方法也易于适应商业熔融纺丝操作。

    Methods for making polylactic acid stereocomplex fibers
    5.
    发明授权
    Methods for making polylactic acid stereocomplex fibers 有权
    制备聚乳酸立体络合纤维的方法

    公开(公告)号:US08182725B2

    公开(公告)日:2012-05-22

    申请号:US12679365

    申请日:2008-09-26

    CPC分类号: D01D5/088 D01D10/02 D01F6/92

    摘要: PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment introduces high-melting “stereocomplex” crystallinity into the fibers. The process can form fibers having a high content of “stereocomplex” crystallites that have a high melting temperature. As a result, the fibers have excellent thermal resistance. The process is also easily adaptable to commercial melt spinning operations.

    摘要翻译: PLA立体复合纤维通过分开熔融高D PLA起始树脂和高-L起始树脂,混合熔体并纺丝熔融混合物而制成。 随后的热处理将高熔点的“立体复合物”结晶引入纤维中。 该方法可以形成具有高含量的具有高熔点的“立体络合物”晶体的纤维。 结果,纤维具有优异的耐热性。 该方法也易于适应商业熔融纺丝操作。

    Polylactide stereocomplex conjugate fibers
    6.
    发明申请
    Polylactide stereocomplex conjugate fibers 有权
    聚丙交酯立体络合物复合纤维

    公开(公告)号:US20100221471A1

    公开(公告)日:2010-09-02

    申请号:US12679373

    申请日:2008-09-26

    摘要: Conjugate fibers are prepared in which at least one segment is a mixture of a high-D PLA resin and a high-L PLA resin. These segments have crystallites having a crystalline melting temperature of at least 200° C. At least one other segment is a high-D PLA resin or a high-L PLA resin. The conjugate fibers may be, for example, bicomponent, multi-component, islands-in-the-sea or sheath-and-core types. Specialty fibers of various types can be made through further downstream processing of these conjugate fibers.

    摘要翻译: 制备共轭纤维,其中至少一个片段是高D PLA树脂和高-L PLA树脂的混合物。 这些段具有结晶熔融温度至少为200℃的微晶。至少另一个区段是高D PLA树脂或高-L PLA树脂。 复合纤维可以是例如双组分,多组分,海岛或鞘和核型。 各种类型的特种纤维可以通过这些共轭纤维的进一步下游加工制成。