Long chain branched polypropylene for cast film applications
    1.
    发明申请
    Long chain branched polypropylene for cast film applications 审中-公开
    用于流延膜应用的长链支化聚丙烯

    公开(公告)号:US20100087602A1

    公开(公告)日:2010-04-08

    申请号:US12247756

    申请日:2008-10-08

    IPC分类号: C08F10/06 B29C47/36 B29C47/78

    摘要: A method comprising contacting a polypropylene, an acrylate-containing compound, and an initiator to form a composition, and reactive extruding the composition to form a polymer blend. A method comprising contacting a polypropylene, a multi-functional acrylate monomer, and an initiator to form a composition, reactive extruding the composition to form a reactive extruded composition, and forming the reactive extruded composition into a film wherein the reactive extruded composition has a melt flow rate that is reduced by equal to or greater than 5% when compared to neat polypropylene.

    摘要翻译: 一种方法,包括使聚丙烯,含丙烯酸酯的化合物和引发剂接触以形成组合物,并且反应性挤出所述组合物以形成聚合物共混物。 一种方法,包括使聚丙烯,多官能丙烯酸酯单体和引发剂接触以形成组合物,反应性挤出组合物以形成反应性挤出组合物,以及将反应性挤出组合物形成为膜,其中反应性挤出组合物具有熔体 与纯聚丙烯相比,流速降低5%以上。

    Polyolefin Blends Used as Masterbatch Concentrates
    3.
    发明申请
    Polyolefin Blends Used as Masterbatch Concentrates 审中-公开
    聚烯烃共混物用作母粒浓缩物

    公开(公告)号:US20120196984A1

    公开(公告)日:2012-08-02

    申请号:US13413125

    申请日:2012-03-06

    IPC分类号: C08L23/12

    摘要: Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin.

    摘要翻译: 本文描述了用于形成聚烯烃共混物的聚烯烃共混物和方法。 这样的方法通常包括提供聚烯烃,提供包含第一单体和聚烯烃的第一部分的浓缩单体体系,并将浓缩单体体系与聚烯烃的第二部分混合以形成改性聚烯烃。

    Polymeric Blends for Fiber Applications and Methods of Making the Same
    4.
    发明申请
    Polymeric Blends for Fiber Applications and Methods of Making the Same 审中-公开
    纤维应用的聚合物共混物及其制备方法

    公开(公告)号:US20120034838A1

    公开(公告)日:2012-02-09

    申请号:US12851554

    申请日:2010-08-06

    IPC分类号: D04H13/00 C08L67/00 C08L63/00

    摘要: Processes of forming a fiber article and articles formed therefrom are described herein. The processes generally include providing a propylene-based polymer; contacting the propylene-based polymer with polylactic acid in the presence of a reactive modifier, a non-reactive modifier or a combination thereof to form a polymeric blend, wherein the reactive modifier is selected from epoxy-functionalized polyolefins and the non-reactive modifier comprises an elastomer; and forming the polymeric blend into a fiber article.

    摘要翻译: 本文描述了形成纤维制品和由其形成的制品的方法。 该方法通常包括提供丙烯基聚合物; 在反应性改性剂,非反应性改性剂或其组合的存在下使丙烯类聚合物与聚乳酸接触以形成聚合共混物,其中反应性改性剂选自环氧官能化的聚烯烃,非反应性改性剂包含 弹性体 并将聚合物共混物形成纤维制品。

    Polyolefin blends used as masterbatch concentrates
    5.
    发明申请
    Polyolefin blends used as masterbatch concentrates 失效
    用作母粒浓缩物的聚烯烃共混物

    公开(公告)号:US20060264574A1

    公开(公告)日:2006-11-23

    申请号:US11492379

    申请日:2006-07-25

    IPC分类号: C08F8/00

    摘要: Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin.

    摘要翻译: 本文描述了用于形成聚烯烃共混物的聚烯烃共混物和方法。 这样的方法通常包括提供聚烯烃,提供包含第一单体和聚烯烃的第一部分的浓缩单体体系,并将浓缩单体体系与聚烯烃的第二部分混合以形成改性聚烯烃。

    Fibers and fabrics prepared from blends of homopolymers and copolymers
    6.
    发明申请
    Fibers and fabrics prepared from blends of homopolymers and copolymers 审中-公开
    由均聚物和共聚物共混物制成的纤维和织物

    公开(公告)号:US20060240733A1

    公开(公告)日:2006-10-26

    申请号:US11114352

    申请日:2005-04-25

    摘要: A fiber comprising a propylene polymer composition is disclosed. The composition comprises a resin blend of from about 75 to about 95 weight percent of a Ziegler-Natta or metallocene catalyzed isotactic polypropylene homopolymer, and from about 95 to about 75 weight percent of a metallocene catalyzed polypropylene copolymer. In this blend the copolymer component includes a comonomer in an amount from about 0.05 to about 25 weight percent, based on the copolymer. Non-woven fabrics prepared by thermally bonding the inventive fibers show improved tensile strengths, particularly machine direction, at comparable basis weights that are at least about 5 percent higher than those of fabrics prepared using identical preparation techniques but from the isotactic polypropylene homopolymer alone.

    摘要翻译: 公开了一种包含丙烯聚合物组合物的纤维。 组合物包含约75至约95重量%的齐格勒 - 纳塔或茂金属催化的全同立构聚丙烯均聚物和约95至约75重量%的金属茂催化的聚丙烯共聚物的树脂共混物。 在该混合物中,基于共聚物,共聚物组分包括约0.05至约25重量%的量的共聚单体。 通过热粘合本发明的纤维制备的无纺织物显示出提高的拉伸强度,特别是机器方向,其比例比使用相同制备技术制备的织物至少高约5%,但是来自全同立构聚丙烯均聚物。

    Fibers and Nonwovens Including a Propylene Random Copolymer, and Processes for Producing the Fibers and Nonwovens
    10.
    发明申请
    Fibers and Nonwovens Including a Propylene Random Copolymer, and Processes for Producing the Fibers and Nonwovens 审中-公开
    包括丙烯无规共聚物的纤维和无纺布,以及生产纤维和无纺布的方法

    公开(公告)号:US20150031262A1

    公开(公告)日:2015-01-29

    申请号:US14241277

    申请日:2012-08-28

    摘要: Fibers can include a polypropylene composition, which can include a metallocene random copolymer of propylene and a comonomer that is an alpha-olefin different from propylene. The metallocene random copolymer can have a comonomer content of from 1.2 wt % to 1.8 wt %, a molecular weight distribution of at least 1.0 and of at most 4.0 obtained without thermal or chemical degradation, and a melting temperature Tmelt of at most 140° C. A nonwoven can include the fibers, and a laminate can include the nonwoven. The fibers can be produced by polymerizing the propylene and comonomer in presence of a metallocene-based polymerization catalyst to obtain the metallocene random copolymer. The polypropylene composition can be melt-extruded to obtain a molten polypropylene stream, which can be extruded from capillaries of a spinneret to obtain filaments. A diameter of the filaments can be rapidly reduced to obtain a final diameter.

    摘要翻译: 纤维可以包括聚丙烯组合物,其可以包括丙烯和作为不同于丙烯的α-烯烃的共聚单体的茂金属无规共聚物。 茂金属无规共聚物可以具有1.2重量%至1.8重量%的共聚单体含量,至少1.0的分子量分布和至多4.0,而没有热或化学降解,并且熔融温度Tmelt至多为140℃ 无纺布可以包括纤维,并且层压体可以包括非织造材料。 纤维可以通过在金属茂系聚合催化剂的存在下使丙烯和共聚单体聚合得到茂金属无规共聚物来制备。 可以将聚丙烯组合物熔融挤出以获得熔融的聚丙烯流,其可从喷丝头的毛细管挤出以获得长丝。 长丝的直径可以迅速降低以获得最终的直径。