Patent application number | Description | Published |
20100105274 | Polypropylene Fibers and Spunbond Nonwoven with Improved Properties - The present invention relates to a process for the production of polypropylene fibers and polypropylene spunbond nonwoven comprising a degradation step, wherein the melt flow of the polypropylene is increased, and a fiber or filament extrusion step. The present invention also relates to the fibers and nonwoven produced with said process and to composites and laminates comprising said fibers and nonwoven. | 04-29-2010 |
20100233927 | Metallocene Polypropylene Fibers and Nonwovens with Improved Mechanical Properties - The present invention relates to as-spun fibers and filaments comprising a nucleated metallocene polypropylene. Said fibers and filaments are characterized by improved mechanical properties. The present invention also relates to nonwovens made with such fibers and filaments and to a process for making such fibers and filaments. | 09-16-2010 |
20110059668 | Fibers and Nonwovens with Improved Bonding Properties - The present invention relates to fibers, in particular to as-spun fibers, having an improved bonding performance. In particular, the present invention relates to as-spun fibers comprising a metallocene random copolymer of propylene and one or more comonomers. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and nonwovens of the present invention are characterized by a wider bonding window as the prior art fibers and nonwovens. | 03-10-2011 |
20110081817 | Fibers and Nonwovens with Improved Mechanical Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved mechanical properties. In particular, the present invention relates to fibers comprising a metallocene polypropylene having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwoven of the present invention are characterized by improved properties, in particular improved mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
20110081818 | Fibers and Nonwovens with Improved Mechanical and Bonding Properties - The present invention relates to fibers, particularly to as-spun fibers, having improved properties, in particular improved bonding performance and mechanical properties. In particular, the present invention relates to fibers comprising a metallocene random copolymer of propylene and one or more comonomers, said metallocene random copolymer having a broader molecular weight distribution. The present invention further relates to nonwovens comprising such fibers and to a process for producing such fibers and nonwovens. The fibers and the nonwovens of the present invention are characterized by improved properties, in particular improved bonding performance and mechanical properties, when compared to the prior art fibers and nonwovens. | 04-07-2011 |
20110086568 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 04-14-2011 |
20110183568 | FIBERS AND NONWOVENS WITH INCREASED SURFACE ROUGHNESS - The present invention relates to fibers having an increased surface roughness. Further, the present invention relates to nonwovens, laminates and composites comprising such fibers. Additionally, the present invention relates to a process for producing such fibers, nonwovens, laminates and composites. | 07-28-2011 |
20110184136 | FIBRES AND NONWOVEN PREPARED FROM POLYPROPYLENE HAVING A LARGE DISPERSITY INDEX - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 07-28-2011 |
20110189916 | BIOCOMPONENT FIBERS WITH AN EXTERIOR COMPONENT COMPRISING POLYPROPYLENE - The present invention relates to bicomponent fibers with improved bonding properties. In particular, the present invention relates to bicomponent fibers comprising an exterior component, which in turn comprises a polypropylene that has been degraded from a first melt flow index MFI | 08-04-2011 |
20110263172 | MULTI-COMPONENT POLYOLEFIN ARTICLE COMPRISING HAVING A CONTROLLED DEGRADATION AND A PROCESS FOR THE PRODUCTION OF SAID ARTICLE - A multi-component article with controllable degradation and/or disintegration, comprising:
| 10-27-2011 |
20120309908 | Fibres and Nonwoven Prepared From Polypropylene Having a Large Dispersity Index - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 12-06-2012 |
20130237407 | Fibres and Nonwoven Prepared from Polypropylene Having a Large Dispersity Index - The present invention relates to a process for the production of fibres and filaments with polypropylene having a broad polydispersity index. The present invention also relates to high elongation nonwoven prepared from such fibres and filaments. It further relates to films and laminates prepared from high elongation nonwoven. | 09-12-2013 |
20140051315 | SPUNBOND NONWOVENS MADE FROM HIGH-CRYSTALLINITY PROPYLENE POLYMER - The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution M | 02-20-2014 |
20150031262 | Fibers and Nonwovens Including a Propylene Random Copolymer, and Processes for Producing the Fibers and Nonwovens - 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 T | 01-29-2015 |