公开(公告)号：WO2015112844A1

公开(公告)日：2015-07-30

申请号：PCT/US2015/012658

申请日：2015-01-23

Applicant: FITESA SIMPSONVILLE, INC. ,  FITESA GERMANY GMBH

Inventor： NOVARINO, Elena ,  NEWKIRK, David D. ,  HARTL, Helmut ,  STREICH, Stefanie

IPC: D04H1/4274 ,  D04H1/4291 ,  D04H1/435 ,  D04H1/56

CPC classification number: D04H1/4291 ,  D01D5/0985 ,  D04H1/4266 ,  D04H1/4274 ,  D04H1/435 ,  D04H1/54 ,  D04H1/56 ,  D10B2321/022

Abstract: Process of preparing meltblown fibers that are reclaimed from a starting material of a polypropylene component and a sustainable polymer component is provided. In one aspect, the method includes blending starting fibers of a polypropylene component and a sustainable polymer component under heat to form a molten stream, and then vis-breaking the components to obtain a polymeric blend that is suitable for use in meltblowing applications. The molten stream of the vis-broken polymer components are extruded through a meltblowing die to form a stream of meltblown fibers that is then collected on a collection surface to form a coherent meltblown web. The starting material may be bicomponent filaments having a sheath-core configuration in which the polypropylene component is oriented in the sheath and the sustainable polymer component is oriented in the core of the filaments. The invention is also directed to meltblown fibers and webs prepared from the process.

Abstract translation: 提供了制备从聚丙烯组分的原材料和可持续的聚合物组分回收的熔喷纤维的方法。 在一个方面，该方法包括在加热下共混聚丙烯组分的起始纤维和可持续聚合物组分以形成熔融流，然后将组分破坏以获得适合用于熔喷应用的聚合物共混物。 熔融流体的可折射的聚合物组分通过熔喷模头挤出以形成熔喷纤维流，然后将其收集在收集表面上以形成相干的熔喷网。 起始材料可以是具有皮芯型构型的双组分长丝，其中聚丙烯组分定向在护套中，并且可持续聚合物组分定向在长丝的芯中。 本发明还涉及由该方法制备的熔喷纤维和网。

公开(公告)号：WO2014159724A1

公开(公告)日：2014-10-02

申请号：PCT/US2014/024907

申请日：2014-03-12

Applicant: FITESA NONWOVEN, INC. ,  FITESA GERMANY GMBH

Inventor： CHESTER, Stephen O. ,  WITARSA, Albert ,  STREICH, Stefanie ,  HARTL, Helmut ,  SIEBNER, Harald ,  KONG, Daniel ,  NEWKIRK, David D.

IPC: D04H1/4291 ,  D04H1/541 ,  D04H1/544 ,  D04H3/007 ,  D04H3/147 ,  D04H5/06

CPC classification number: D04H3/147 ,  A61F13/15658 ,  A61F13/15707 ,  A61F13/539 ,  A61F2013/5395 ,  A61L15/24 ,  D04H1/4291 ,  D04H1/541 ,  D04H1/544 ,  D04H1/56 ,  D04H3/007 ,  D04H3/05 ,  D04H5/06 ,  D10B2321/021 ,  D10B2321/022 ,  D10B2401/06 ,  D10B2509/026 ,  Y10T442/641 ,  Y10T442/66 ,  Y10T442/681 ,  Y10T442/697

Abstract: Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.

Abstract translation: 具有改善的伸长率，伸长性，耐磨性和韧性的可伸缩无纺织物。 特别地，本发明的实施方案涉及包含茂金属催化的聚丙烯，聚乙烯和第三聚合物组分的聚合共混物的可伸展纺粘织物。